Inflammation and Aspergillosis: Understanding “Stable”, “Flare”, and “Improving” Disease
Last reviewed: April 2026
Key points
- Inflammation is part of the body’s response to Aspergillus, but it does not always mean damage is actively worsening.
- “Stable” disease means no clear progression over time, not that the condition has disappeared.
- Symptoms in aspergillosis often vary because of other infections, especially in the lungs.
- Test results (such as IgE or CRP) can change without symptoms changing.
- Doctors make decisions based on the overall pattern over time, not a single test result.
Table of contents
- What is inflammation and why does it matter?
- Inflammation in different types of aspergillosis
- Clear definitions: active, flare, stable, improving, remission
- What does “stable disease” mean in practice?
- Why other infections cause flare-ups
- Understanding test results (CRP, IgE, scans)
- When test results worsen but symptoms do not
- How doctors decide what is happening
- Common patient questions
- When to seek medical advice
What is inflammation and why does it matter?
Inflammation is the body’s way of responding to something it sees as harmful. In aspergillosis, this is usually the fungus Aspergillus.
This response involves immune cells, chemicals, and changes in the lungs that aim to control the fungus. However, if inflammation continues over a long period (chronic inflammation), it can also contribute to:
- Ongoing symptoms (cough, breathlessness, fatigue)
- Mucus production
- Damage to lung tissue over time
Important: inflammation can be present at a low level without causing active damage. This is common in chronic conditions.
Inflammation in different types of aspergillosis
The type of inflammation depends on the form of aspergillosis:
- Allergic Bronchopulmonary Aspergillosis (ABPA): driven by an overactive allergic response. Blood markers such as IgE and eosinophils are often used to monitor this.
- Chronic Pulmonary Aspergillosis (CPA): caused by long-term infection in damaged lung tissue, leading to ongoing inflammation and structural changes.
- Aspergillus bronchitis: persistent infection with inflammation, often causing chronic cough and sputum.
In all cases, inflammation may improve with treatment but often does not disappear completely.
Clear definitions: disease states
Doctors use the following terms to describe how the disease is behaving:
- Active disease: symptoms, tests, or scans are getting worse over time
- Flare-up: a short-term worsening, often triggered by infection or another stress on the body
- Stable: no clear overall change over time
- Improving / responding to treatment: symptoms and/or tests are getting better
- Remission: minimal or no signs of active disease (used more often in ABPA)
Key point: these states are not fixed — patients may move between them.
What does “stable disease” mean in practice?
“Stable” means that, over a period of time (weeks to months), there is no clear evidence that the disease is progressing.
This usually includes:
- No worsening of key symptoms
- No new complications (e.g. haemoptysis, significant weight loss)
- Imaging (CT scans) showing no progression
- No need to increase treatment
What stable does NOT mean:
- It does not mean symptoms are absent
- It does not mean inflammation is zero
- It does not mean you will feel the same every day
Many patients with stable disease still experience day-to-day variation in symptoms.
Why other infections cause flare-ups
People with aspergillosis are more vulnerable to other lung infections (bacterial or viral).
This is because:
- Lung structure may already be damaged
- Mucus clearance is less effective
- The immune system is already active
When another infection occurs, it can trigger a flare-up, causing:
- Increased cough and breathlessness
- More or thicker sputum
- Fatigue and feeling unwell
- Raised inflammatory markers (e.g. CRP)
Crucial point: this does not necessarily mean the aspergillosis itself is worsening. It is often a temporary additional problem.
Understanding test results
Doctors use several types of tests to monitor inflammation and disease activity:
- CRP / ESR: general markers of inflammation
- IgE: particularly important in ABPA
- Eosinophils: linked to allergic inflammation
- CT scans: show structural changes in the lungs
- Sputum cultures: detect infection
Important limitations:
- No single test gives a complete picture
- Results can fluctuate for many reasons
- Changes must be interpreted over time
When test results worsen but symptoms do not
This situation is common, especially in ABPA.
For example, IgE levels may rise without any noticeable change in symptoms.
This may happen because of:
- Natural biological variation
- Exposure to allergens
- A mild or early flare that has not yet caused symptoms
Key point: a change in a single test result does not automatically mean the disease is worsening.
Doctors will usually:
- Repeat tests
- Look for consistent trends
- Assess symptoms and scans
If symptoms remain stable and no other changes are seen, the condition may still be considered stable — but monitored more closely.
How doctors decide what is happening
Clinicians do not rely on a single result. Instead, they assess the pattern over time:
- Are symptoms changing?
- Are test results consistently rising or falling?
- Are scans stable or changing?
- Is the patient responding to treatment?
This combined assessment is called the clinical picture.
Common questions
If I feel better, what is that called?
This is usually described as improving or responding to treatment. In some cases (especially ABPA), it may be called remission.
Does inflammation always mean damage?
No. Low-level inflammation can persist without causing further harm.
Why do my symptoms change from day to day?
This is common and often relates to infections, environment, or general health rather than disease progression.
Can aspergillosis affect the whole body?
It can have wider effects, but it mainly affects the lungs in most patients.
When to seek medical advice
Seek medical advice if you notice:
- Persistent worsening of symptoms
- New haemoptysis (coughing up blood)
- Significant weight loss
- Symptoms not improving after a suspected infection
- Concerns about test results
Author and review
Author: Aspergillosis Patient Education Team
Reviewed by: National Aspergillosis Centre (UK)
References
- Denning DW et al. Chronic pulmonary aspergillosis guidelines
- ISHAM ABPA guidelines
This article is for general information only and is not a substitute for medical advice.
AntifungalInteractions.org – A Specialist Resource for Safer Antifungal Treatment
Last reviewed: April 2026
Managing antifungal medications can be complex. Many antifungal drugs interact with other medicines, foods, and even supplements.
To support both patients and healthcare professionals, a dedicated resource is available:
AntifungalInteractions.org.
Key Points
- A specialist database focused specifically on antifungal drug interactions
- More detailed and targeted than general resources such as the British National Formulary (BNF)
- Includes guidance designed for both healthcare professionals and patients
- Regularly updated (typically several times per month)
- Maintained by an experienced clinical pharmacist and prescriber
- Owned and supported by the Fungal Infection Trust
What is AntifungalInteractions.org?
AntifungalInteractions.org is a dedicated online database designed to help users understand how antifungal medications interact with:
- Other prescribed drugs
- Over-the-counter medications
- Herbal supplements
- Certain foods and drinks
Unlike general drug reference tools, this resource focuses specifically on antifungal medicines, making it particularly useful for conditions such as aspergillosis, where treatment often involves long-term or complex therapy.
Why This Resource Matters
1. Antifungal drugs are complex
Common antifungal medications such as azoles (e.g. itraconazole, voriconazole, posaconazole) are known to interact with many other drugs.
These interactions can:
- Increase side effects
- Reduce treatment effectiveness
- Require dose adjustments or monitoring
2. General resources may not go far enough
Widely used tools like the British National Formulary (BNF) are essential, but they are designed for broad use across all medicines.
AntifungalInteractions.org provides:
- More detailed interaction explanations
- Practical interpretation of risk
- Condition-specific relevance
3. It supports informed discussions
The database is not a replacement for clinical advice, but it can help patients and clinicians:
- Prepare for consultations
- Understand potential risks
- Ask more informed questions
Who Maintains the Database?
AntifungalInteractions.org is maintained by:
Saarah Niazi-Ali
MPharm, PG Cert (General Pharmacy Practice), PG Dip (Advanced Clinical Pharmacy Practice),
Independent Pharmacist Prescriber, Non-Medical Prescribing (Level 7), Final Medical Signatory
The database is updated frequently—typically 3–4 times per month, often on a weekly basis—ensuring that information remains current and clinically relevant.
Governance and Ownership
The resource is owned and supported by the Fungal Infection Trust, a UK-based organisation dedicated to improving the understanding, diagnosis, and treatment of fungal diseases.
This ensures that the database:
- Remains focused on patient benefit
- Is aligned with specialist fungal disease care
- Supports both clinical practice and patient education
Who Is It For?
Patients and carers
- To better understand their medications
- To check for potential interactions
- To support conversations with their clinical team
Healthcare professionals
- Infectious disease specialists
- Respiratory clinicians
- Pharmacists
- GPs managing complex patients
It is particularly valuable for clinicians managing conditions such as:
- Chronic pulmonary aspergillosis (CPA)
- Allergic bronchopulmonary aspergillosis (ABPA)
- Other fungal infections requiring long-term antifungal therapy
How Does It Compare to Other Resources?
| Feature | AntifungalInteractions.org | General Drug References (e.g. BNF) |
|---|---|---|
| Focus | Antifungal-specific | All medicines |
| Level of detail | High (specialist) | Moderate (broad coverage) |
| Patient-friendly explanations | Yes | Limited |
| Update frequency | Frequent (monthly/weekly) | Regular but broader scope |
Important Notes for Patients
While this database is a valuable resource, it should be used appropriately:
- Do not stop or change medication based on what you read
- Always discuss concerns with your doctor, pharmacist, or specialist team
- Use the information to support—not replace—medical advice
When to Seek Medical Advice
Contact your healthcare provider if you:
- Start a new medication while on antifungal treatment
- Experience new or worsening side effects
- Are unsure whether a supplement or food is safe
- Have been advised of a potential interaction
Summary
AntifungalInteractions.org is a highly valuable, specialist resource that fills an important gap in antifungal care.
Its combination of:
- Expert clinical oversight
- Frequent updates
- Patient-accessible explanations
- Specialist focus
makes it an important tool for both patients and healthcare professionals managing fungal disease.
Further Reading
- British National Formulary (BNF)
- Aspergillosis treatment guidance (aspergillosis.org)
Author & Review
Prepared for Aspergillosis patient and healthcare education.
Content aligned with UK specialist practice and reviewed for clarity and safety.
Voriconazole interactions: what patients need to know
Key points
- Voriconazole interacts with many medicines.
- It affects several liver enzyme pathways, including CYP3A4, CYP2C19, and CYP2C9.
- Its behaviour can vary more from one person to another than some other azoles.
- Some medicines can make voriconazole stronger, while others can make it less effective.
- Visual side effects and sensitivity to sunlight are well recognised with voriconazole.
What is voriconazole?
Voriconazole is an azole antifungal often used in serious fungal infections, including aspergillosis. It can be very effective, but it also has a relatively complex interaction profile.
Why voriconazole interacts with so many medicines
Voriconazole affects several liver enzyme systems, including CYP3A4, CYP2C19, and CYP2C9. It can increase the levels of some medicines, while some other medicines can lower voriconazole levels and reduce its effectiveness.
Because voriconazole metabolism varies between patients, the same combination can affect people differently.
The interaction groups most likely to matter
Steroids
Voriconazole can increase exposure to some steroids, including inhaled steroids, which may increase the risk of steroid side effects.
Medicines that reduce voriconazole levels
Some medicines, including certain anti-seizure medicines and rifampicin-type antibiotics, can reduce voriconazole levels so much that the antifungal may not work properly.
Blood thinners
Some blood thinners may become stronger when taken with voriconazole, increasing bleeding risk.
Heart rhythm medicines
Voriconazole can contribute to QT prolongation, so combinations with other medicines that affect heart rhythm may be particularly important.
Statins
Some statins can become stronger when taken with voriconazole, increasing the risk of muscle side effects.
Immunosuppressants
Medicines such as tacrolimus and ciclosporin can rise significantly with voriconazole and often require specialist monitoring and dose adjustment.
Sedatives and some mental health medicines
Some sedatives and psychiatric medicines can become stronger when combined with voriconazole, increasing the risk of drowsiness, confusion, or other side effects.
Voriconazole-specific issues patients should know
Visual changes
Temporary visual disturbances are well recognised with voriconazole. Patients may notice blurred vision, brighter vision, or changes in colour perception.
Photosensitivity
Voriconazole can increase sensitivity to sunlight. Patients should use sensible sun protection and report new skin changes, especially during long-term treatment.
Variable drug levels
Voriconazole levels can vary between patients, which is one reason some teams use therapeutic drug monitoring in selected situations.
What patients should do in practice
- Tell your clinical team and pharmacist that you are taking voriconazole.
- Check before starting new medicines, including over-the-counter or herbal products.
- Report visual changes, significant sensitivity to sunlight, or a change in symptoms after a medicine change.
- Do not change treatment without advice.
When to seek medical advice
Seek medical advice urgently for severe bleeding, fainting, severe palpitations, marked confusion, or rapid worsening after a medicine change.
Important
This page is educational and does not list every interaction. For a full check, use the BNF interaction checker or speak to a pharmacist or clinician.
References
Itraconazole interactions: what patients need to know
Key points
- Itraconazole can interact with many other medicines.
- It usually does this by affecting liver enzymes, especially CYP3A4.
- Some combinations need careful monitoring, while others are best avoided.
- Capsules and liquid formulations are not handled by the body in exactly the same way.
- This page highlights the interactions most likely to matter to people with aspergillosis.
What is itraconazole?
Itraconazole is an azole antifungal used in aspergillosis and other fungal infections. It has a relatively high interaction burden, so medicine checks are especially important before starting it and whenever another medicine is added, stopped, or changed.
Why itraconazole interacts with so many medicines
Itraconazole can increase the levels of some other medicines by affecting liver enzymes, especially CYP3A4. This means that some medicines may become stronger than intended, which can increase the risk of side effects or toxicity.
The interaction groups most likely to matter
Steroids and inhalers
This is one of the most important groups for many aspergillosis patients, especially those with asthma or allergic bronchopulmonary aspergillosis. Itraconazole can increase exposure to some steroids, including inhaled steroids, which may increase the risk of steroid side effects.
Possible symptoms to report: unusual weight gain, easy bruising, increased facial rounding, mood changes, worsening blood sugar control, weakness, or marked fatigue.
Statins
Some statins can become much stronger when taken with itraconazole. This can increase the risk of muscle toxicity.
Possible symptoms to report: new muscle pain, muscle weakness, or dark urine.
Blood thinners
Itraconazole can increase the effect of some blood thinners, which may raise bleeding risk.
Possible symptoms to report: unusual bruising, bleeding that is hard to stop, black stools, vomiting blood, or coughing up much more blood than usual.
Heart and rhythm medicines
Some combinations can increase the risk of serious heart rhythm problems. Itraconazole is also used cautiously in people with a history of ventricular dysfunction or heart failure unless the infection is serious.
Possible symptoms to report: fainting, palpitations, marked dizziness, increasing ankle swelling, or worsening breathlessness.
Sleeping tablets, sedatives, and some mental health medicines
Some sedatives and psychotropic medicines can become stronger when combined with itraconazole, increasing the risk of drowsiness, confusion, falls, or breathing problems.
Immunosuppressants
Medicines such as tacrolimus and ciclosporin can rise significantly when taken with itraconazole and usually need specialist monitoring.
Medicines that can make itraconazole less effective
Some medicines lower itraconazole levels, which means the antifungal may not work as well. This can happen with some anti-seizure medicines, rifampicin-type antibiotics, and some antiviral medicines.
Acid-reducing medicines and itraconazole capsules
Reduced stomach acid can lower the absorption of itraconazole capsules. This means reflux medicines, antacids, and some acid-suppressing treatments can affect how well the capsules work. The liquid formulation behaves differently and should not be treated as interchangeable with capsules.
What patients should do in practice
- Keep a current medicines list and bring it to appointments.
- Tell clinicians and pharmacists if you are taking itraconazole.
- Ask specifically about inhalers, steroid tablets, statins, blood thinners, and reflux treatment.
- Do not change doses or stop medicines without advice.
- If your itraconazole formulation changes, ask whether it should be taken with food or on an empty stomach.
When to seek medical advice
Seek urgent medical advice for severe bleeding, black stools, vomiting blood, severe muscle pain, fainting, marked palpitations, or rapidly worsening breathlessness.
Important
This page is not a full interaction database. For a complete medicine-by-medicine check, use the BNF interaction checker or speak to a pharmacist or clinician.
References
Amphotericin B interactions: what patients need to know
Key points
- Amphotericin B comes in different formulations, and they are not interchangeable.
- Its main interaction risks are different from the azoles.
- The most important problems are usually kidney stress, low potassium, low magnesium, and additive toxicity with other medicines.
- These risks matter most with intravenous treatment.
- If you hear “amphotericin B”, it is important to know which formulation is being used.
What is amphotericin B?
Amphotericin B is an antifungal used mainly for serious fungal infections. In modern UK practice this often means liposomal amphotericin B, but conventional amphotericin B deoxycholate is also a recognised formulation.
Why amphotericin B interactions are different from azoles
Unlike azole antifungals, amphotericin B does not mainly cause medicine interactions through liver enzymes. Its most important interaction risks usually relate to kidney injury, low potassium, low magnesium, and infusion-related effects.
The interaction groups most likely to matter
Other medicines that can damage the kidneys
This is one of the most important groups. Combining amphotericin B with other nephrotoxic medicines can increase the risk of kidney injury.
Diuretics, steroids, and other medicines that lower potassium
Amphotericin B can lower potassium, and some other medicines can make this worse. This may increase the risk of weakness, cramps, or heart rhythm problems.
Digoxin and heart-rhythm-sensitive situations
Low potassium caused by amphotericin B can make digoxin-related toxicity more likely and may increase the importance of electrolyte monitoring.
Flucytosine
When combined with flucytosine, specialist monitoring may be needed because toxicity can increase.
Some cancer medicines and intensive hospital treatments
In hospital, additive toxicity with other intensive treatments may be particularly important, especially where kidneys and electrolytes are already under strain.
White blood cell transfusions
Acute lung reactions are a recognised specialist concern if amphotericin B is given during or soon after leukocyte transfusions.
Why the formulations matter
Amphotericin B formulations are not interchangeable. Conventional amphotericin B deoxycholate and liposomal amphotericin B have different dosing, different handling by the body, and different safety profiles. Using the wrong formulation in the wrong dose has caused serious and even fatal errors.
In general, liposomal amphotericin B is less nephrotoxic than conventional amphotericin B deoxycholate, but it still requires careful monitoring.
What patients should do in practice
- Ask which amphotericin B formulation is being used.
- Tell the clinical team about all medicines, especially kidney-risk medicines, diuretics, steroids, and digoxin.
- Expect blood tests to monitor kidney function, potassium, and magnesium during intravenous treatment.
- Report weakness, reduced urine output, worsening swelling, palpitations, or marked dizziness.
When to seek medical advice
Seek urgent medical help for severe breathlessness, fainting, major palpitations, or a rapid deterioration during treatment.
Important
This page is educational and does not list every possible interaction. Amphotericin B treatment is usually managed by specialist teams, especially when given intravenously.
References
Isavuconazole interactions: what patients need to know
Key points
- Isavuconazole can interact with other medicines, but its interaction profile is often less complex than older azoles.
- It mainly interacts through CYP3A4.
- Some medicines can increase isavuconazole levels, while others can reduce its effectiveness.
- It has an important difference from some other azoles: it can shorten the QT interval.
- It is still essential to check new medicines carefully.
What is isavuconazole?
Isavuconazole is a newer azole antifungal used in invasive aspergillosis and some other serious fungal infections. It is often seen as having a more predictable interaction profile than some older azoles, but it still has important interactions.
Why isavuconazole interacts with other medicines
Isavuconazole is mainly linked to CYP3A4. This means some medicines can become stronger when combined with it, while other medicines can lower isavuconazole levels and reduce its effectiveness.
The interaction groups most likely to matter
Medicines that reduce isavuconazole effectiveness
Some medicines, including rifampicin-type antibiotics and certain anti-seizure drugs, can lower isavuconazole levels and may make treatment ineffective.
Steroids
Some steroid levels may rise with isavuconazole, although the interaction pattern is often less intense than with some older azoles.
Immunosuppressants
Medicines such as tacrolimus and ciclosporin may increase and usually need specialist review and monitoring.
Blood thinners
Some blood thinners may become stronger, increasing bleeding risk.
Statins
Some statin levels may increase, which can raise the risk of muscle side effects.
Important isavuconazole-specific points
QT shortening
Unlike several other azole antifungals, isavuconazole can shorten the QT interval. This is an important difference and should be considered when other heart medicines are being reviewed.
Generally simpler interaction profile
Compared with itraconazole and voriconazole, isavuconazole is often considered a little easier to manage in patients taking several medicines, although checks are still essential.
What patients should do in practice
- Tell your pharmacist or clinician if you are taking isavuconazole.
- Check before starting prescription, over-the-counter, or herbal medicines.
- Ask specifically about anti-seizure drugs, antibiotics, blood thinners, and heart medicines.
- Do not stop or change medicines without advice.
When to seek medical advice
Seek medical advice urgently for severe bleeding, fainting, severe palpitations, severe muscle pain, or rapid worsening after a medicine change.
Important
This page is educational and not a complete interaction database. For a full check, use the BNF interaction checker or speak to a pharmacist or clinician.
References
- BNF: isavuconazole monograph and interactions
- UK isavuconazole SmPCs - not available
Posaconazole interactions: what patients need to know
Key points
- Posaconazole can interact with other medicines, although its interaction pattern is often a little simpler than itraconazole or voriconazole.
- It mainly interacts through CYP3A4 inhibition.
- Important interaction groups include immunosuppressants, steroids, blood thinners, and some heart medicines.
- Some medicines can reduce posaconazole levels and make treatment less effective.
- Tablets and oral suspension are not interchangeable in the same way.
What is posaconazole?
Posaconazole is an azole antifungal used in aspergillosis and in some high-risk patients for prevention of fungal infection. It is often seen as somewhat easier to manage than some older azoles, but important interactions still exist.
Why posaconazole interacts with other medicines
Posaconazole mainly affects CYP3A4, a key liver enzyme involved in handling many medicines. This means some drugs can become stronger, while some combinations can lower posaconazole levels and make it less effective.
The interaction groups most likely to matter
Steroids
Posaconazole can increase exposure to some steroids, including inhaled or oral steroids, which may increase the risk of steroid side effects.
Immunosuppressants
Medicines such as tacrolimus and ciclosporin can rise significantly with posaconazole and usually need close specialist monitoring.
Blood thinners
Some blood thinners may become stronger, increasing bleeding risk.
Statins
Some statins can rise in level, increasing the risk of muscle problems.
Heart rhythm medicines
Some combinations can increase the risk of heart rhythm problems and need careful review.
Medicines that reduce posaconazole effectiveness
Some medicines, including rifampicin-type antibiotics and certain anti-seizure drugs, can lower posaconazole levels and may make treatment less effective.
Posaconazole formulations and absorption
Posaconazole comes in different forms, including tablets, oral suspension, and infusion. The oral suspension and tablets are not handled identically by the body and should not be assumed to be interchangeable dose-for-dose without clinical advice.
In practice, the tablets tend to be more predictable than the suspension.
What patients should do in practice
- Tell your pharmacist or clinician if you are taking posaconazole.
- Ask about new medicines, especially blood thinners, steroids, statins, and heart medicines.
- If your formulation changes, ask whether there are any special instructions.
- Do not stop or swap medicines without advice.
When to seek medical advice
Seek medical advice urgently for severe bleeding, fainting, major palpitations, severe muscle pain, or rapid worsening after a medicine change.
Important
This page does not list every interaction. For a full check, use the BNF interaction checker or speak to a pharmacist or clinician.
References
Antifungal drug interactions: what patients with aspergillosis need to know
Key points
- Antifungal medicines can interact with other medicines, including inhalers, steroid tablets, blood thinners, heart medicines, cholesterol tablets, and some over-the-counter or herbal products.
- The azole antifungals usually interact by affecting how the liver handles medicines.
- Amphotericin B is different: its main interaction risks are more often linked to kidneys, potassium, magnesium, and infusion-related effects.
- This page gives an overview. It does not list every interaction.
- For a full medicine-by-medicine check, use the BNF interaction checker or ask a pharmacist or clinician.
Why interactions matter in aspergillosis
People with aspergillosis often take more than one medicine. This may include inhalers, steroid tablets, medicines for reflux, antibiotics, pain relief, blood pressure treatment, blood thinners, cholesterol tablets, and drugs for other long-term conditions. That means medicine checks are especially important whenever an antifungal is started, stopped, or changed.
How the main antifungals differ
Most long-term interaction questions in aspergillosis involve the azole antifungals: itraconazole, voriconazole, posaconazole, and isavuconazole. These mainly interact because they affect liver enzymes, especially CYP3A4, although some also affect CYP2C9 and CYP2C19.
Amphotericin B behaves differently. Its most important risks are usually kidney stress, low potassium, low magnesium, and additive toxicity with other medicines rather than classic liver-enzyme interactions.
Quick comparison table
| Antifungal | Main interaction pattern | Typical complexity | Important extra point |
|---|---|---|---|
| Itraconazole | Strong enzyme-based interactions, especially CYP3A4 | High | Capsules and liquid are not handled by the body in the same way |
| Voriconazole | Complex enzyme-based interactions involving several CYP pathways | High | More variable between patients; visual side effects and photosensitivity are well recognised |
| Posaconazole | Mainly CYP3A4-related interactions | Moderate | Tablets and oral suspension are not interchangeable in the same way |
| Isavuconazole | Mainly CYP3A4-related interactions, usually less complex than older azoles | Lower to moderate | Can shorten the QT interval |
| Amphotericin B | Kidney, potassium, magnesium, and infusion-related interaction risks | Different rather than simpler | Formulations are not interchangeable |
Individual antifungal guides
- Itraconazole interactions: what patients need to know
- Voriconazole interactions: what patients need to know
- Posaconazole interactions: what patients need to know
- Isavuconazole interactions: what patients need to know
- Amphotericin B interactions: what patients need to know
What patients should do in practice
- Keep an up-to-date list of all medicines, including inhalers, creams, over-the-counter medicines, supplements, and herbal products.
- Tell your doctor, nurse, pharmacist, or hospital team that you are taking an antifungal.
- Do not start, stop, or swap medicines on your own because of something you have read online.
- Ask specifically about new medicines, steroid changes, reflux treatment, blood thinners, cholesterol medicines, and heart medicines.
When to seek medical advice
Seek medical advice promptly if symptoms change after a medicine is started, stopped, or changed. Seek urgent help for severe bleeding, fainting, severe muscle pain, marked palpitations, rapidly worsening breathlessness, severe drowsiness, or a sudden significant decline in your health.
Important
This resource is educational. It does not replace personalised advice from your clinical team, GP, or pharmacist, and it is not a complete interaction database.
References
Hydrocortisone Injection Changes in the UK: What It Means for Aspergillosis Patients
Last reviewed: March 2026
Audience: Patients, carers, and non-specialist healthcare professionals
Key points
- A ready-to-use hydrocortisone injection (liquid solution) is no longer available in the UK.
- Patients are now usually given a hydrocortisone injection that must be mixed before use.
- The medication itself is unchanged, but preparation is more complex.
- This may feel more difficult during an emergency, especially if someone is unwell or distressed.
- Training and preparation can help reduce delays.
- Always seek urgent medical help in a suspected emergency.
Table of contents
- Overview
- Why hydrocortisone matters in aspergillosis
- What has changed in the UK
- What this means in practice
- Potential concerns and risks
- Practical steps for patients and carers
- Common questions
- When to seek medical help
- References
Overview
Hydrocortisone is a steroid hormone used as cortisol replacement in people whose bodies cannot produce enough cortisol, a condition known as adrenal insufficiency.
Some patients with aspergillosis may be affected by this change because:
- long-term steroid use can suppress the body’s natural cortisol production
- adrenal function may be reduced during or after treatment
- some patients may already have adrenal insufficiency or need emergency steroid cover
In emergencies, hydrocortisone injections can be life-saving.
Why hydrocortisone matters in aspergillosis
Patients with aspergillosis may encounter adrenal-related issues for several reasons. For example, some people with allergic bronchopulmonary aspergillosis (ABPA) have needed prolonged courses of steroid treatment. Over time, this can reduce the body’s own cortisol production.
There can also be concerns about drug interactions, especially where antifungal medicines and steroid medicines affect the way the body handles hormones. Not every aspergillosis patient will be affected, but for some people this is an important part of their wider treatment plan.
If cortisol levels are too low during illness, injury, vomiting, or other physical stress, this can lead to an adrenal crisis, which is a medical emergency.
What has changed in the UK
Previously, some patients were supplied with a ready-made liquid hydrocortisone injection. This was already in solution and could be given more quickly.
This ready-to-use product is no longer available in the UK.
Most patients who need emergency hydrocortisone injection are now supplied with a preparation that includes:
- a vial containing hydrocortisone powder
- a liquid for mixing
- a syringe and needle for drawing up and giving the injection
The medicine itself is still hydrocortisone and remains standard treatment. What has changed is the practical process: it now needs to be prepared before it can be injected.
Diagram: preparing hydrocortisone injection
Preparing a hydrocortisone injection (Video) : https://www.youtube.com/watch?v=NXXB3w1ADcI
What this means in practice
For many patients, this change is manageable with training and practice. However, it does change the experience of using emergency medication.
Compared with a ready-made solution, there are now more steps involved. In a calm situation, that may not seem significant. In an emergency, it can feel much harder.
This is especially relevant if the person is:
- very unwell
- vomiting
- dizzy or confused
- trying to guide a family member or carer through the process
For some patients, this could potentially cause a delay in giving the injection. That does not mean the current treatment is ineffective or unsafe, but it does mean that confidence, familiarity, and training matter even more.
Potential concerns and risks
1. More steps may mean more delay
The current injection usually has to be mixed before use. That means opening the kit, preparing the medicine, drawing it up, and then giving the injection. In an emergency, even a short delay may feel important.
2. Stress makes practical tasks harder
Patients and carers are often being asked to act quickly during a frightening situation. Even people who have previously been shown what to do may lose confidence if they rarely need to use the injection.
3. Training may vary
Not everyone receives the same level of teaching or refresher support. Some people may feel very confident. Others may feel unsure, especially if their kit has changed.
4. Aspergillosis patients may already be managing a lot
Some patients are already coping with breathlessness, fatigue, infections, multiple medicines, and complex follow-up. Adding a more complicated emergency injection process can feel like an extra burden.
It is important to keep this concern in proportion. Many patients and carers do use mixed hydrocortisone kits successfully. The key issue is not that the medicine no longer works, but that the loss of a ready-made formulation may make emergency use less straightforward.
Practical steps for patients and carers
If you have been prescribed emergency hydrocortisone, it may help to:
- check that you know exactly which product you have been given
- ask for a demonstration of how to prepare and inject it
- ask for a refresher if you are not confident
- make sure family members, carers, or trusted friends also know what to do
- keep the emergency kit somewhere accessible and check expiry dates regularly
- carry any steroid emergency information you have been given, such as a steroid card
These steps cannot remove all risk, but they may reduce hesitation and confusion if the injection is ever needed urgently.
Common questions
Has hydrocortisone been withdrawn completely?
No. Hydrocortisone is still widely used. The main issue is that a ready-to-use liquid injectable form is no longer available in the UK.
Is the current injection less effective?
No. The medicine remains hydrocortisone. The change is in the formulation and the preparation steps, not in the intended effect of treatment.
Why does this matter so much?
In an emergency, simple treatments are often easier to use correctly and quickly. A preparation that needs mixing may be more difficult for some patients or carers under pressure.
Does this affect every aspergillosis patient?
No. This is mainly relevant to people who have adrenal insufficiency, adrenal suppression, or a clear plan from their clinical team to keep emergency hydrocortisone available.
Should patients be worried?
Patients should not panic, but it is reasonable to recognise this as a practical concern. If you rely on emergency hydrocortisone, it is sensible to make sure you understand your current kit and feel as confident as possible using it.
When to seek medical help
Seek urgent medical help if there are symptoms suggesting a possible adrenal emergency, especially if there is:
- severe weakness
- collapse or near-collapse
- confusion or marked drowsiness
- vomiting or inability to keep medicines down
- sudden severe illness or infection
If an emergency hydrocortisone injection has been prescribed, follow the instructions given by your clinical team and seek urgent medical care immediately.
References
- British National Formulary (BNF): hydrocortisone medicinal forms
- Society for Endocrinology guidance on adrenal crisis and emergency steroid treatment
- NHS information on steroids, steroid emergency cards, and urgent care
- UK endocrine and Addison’s patient group communications on hydrocortisone supply changes
Author and review information
Prepared for: aspergillosis.org
Purpose: General information for patients, carers, and non-specialist healthcare professionals
Important note: This article is intended for general education and should not replace individual medical advice from your own clinical team.
Why Headaches Can Occur in Aspergillosis
Last reviewed: March 2026
Key Points
- Headaches are relatively common in people living with aspergillosis, but they usually have multiple contributing causes.
- Common causes include sinus involvement, inflammation, sleep disturbance, and medication effects.
- Antifungal medicines such as itraconazole may improve some symptoms indirectly but can also occasionally cause headaches.
- Patterns (timing, location, triggers) can help identify likely causes, but headaches are rarely due to one factor alone.
- New, severe, or unusual headaches should always be assessed by a healthcare professional.
Table of Contents
- Overview
- Sinus involvement (common cause)
- Inflammation and immune response
- Allergic-type responses (e.g. ABPA)
- Medication effects
- Sleep disturbance and night symptoms
- Breathing and oxygen levels
- General health factors
- Understanding headache patterns
- Common questions
- When to seek medical advice
- Summary
- Author and review
- References
Overview
Many people living with aspergillosis report headaches at some point during their illness. These headaches can vary in type, severity, and timing, and may be confusing—especially when they change over time or seem linked to treatment.
In most cases, headaches are not caused by a single factor. Instead, they reflect a combination of:
- local effects (such as sinus pressure)
- immune system activity
- medication effects
- sleep and general health factors
Understanding these different contributors can help make sense of symptoms and support more informed discussions with your clinical team.
Sinus involvement (common cause)
When Aspergillus affects the sinuses (sometimes called fungal sinusitis), this can directly cause headaches.
This happens because:
- sinus drainage becomes blocked
- pressure builds up in the sinus cavities
- the lining of the sinuses becomes inflamed
Typical features:
- pain or pressure in the forehead, cheeks, or behind the eyes
- worsening when bending forward
- a feeling of fullness or congestion
This is one of the most direct ways aspergillosis can lead to headaches.
Inflammation and immune response
Even when the sinuses are not directly involved, the body’s immune response to fungal material can cause systemic effects.
The immune system releases signalling molecules (such as cytokines) that can:
- increase inflammation
- affect blood vessels
- trigger headache pathways
This type of headache can feel similar to a “flu-like” or inflammatory headache.
Allergic-type responses (e.g. ABPA)
In conditions such as Allergic Bronchopulmonary Aspergillosis (ABPA), the immune system reacts strongly to Aspergillus.
This may involve:
- allergic pathways
- histamine and related mediators
- ongoing airway inflammation
Possible symptoms:
- head pressure or discomfort
- fluctuating headaches
- a “foggy” or unwell feeling
These headaches are often less clearly localised than sinus-related pain.
Medication effects
Some treatments used in aspergillosis can contribute to headaches.
Antifungal medications (e.g. itraconazole):
- headache is a recognised side effect in some people
- effects vary between individuals
Steroids (if prescribed):
- can affect sleep and mood
- may influence blood pressure
- can indirectly contribute to headaches
Medication effects can sometimes overlap with disease-related symptoms, making patterns harder to interpret.
Sleep disturbance and night symptoms
Sleep disruption is common in chronic lung conditions.
Possible contributors include:
- night-time coughing
- breathlessness
- discomfort or anxiety
Poor sleep can lead to:
- morning headaches
- increased sensitivity to pain
- fatigue-related headaches
Breathing and oxygen levels
In some people with more advanced lung involvement:
- oxygen levels may be slightly reduced
- breathing effort may increase
This can contribute to:
- morning headaches
- fatigue and cognitive symptoms
Not all patients experience this, but it is an important factor in some cases.
General health factors
Headaches can also be influenced by general aspects of living with a long-term condition:
- dehydration
- fatigue
- reduced activity levels
- stress or anxiety
These factors can contribute to tension-type headaches or make other headache types more noticeable.
Understanding headache patterns
Looking at patterns can sometimes help identify likely contributors.
- Facial pressure worse on bending: may suggest sinus involvement
- Early morning headaches: may relate to sleep or breathing patterns
- Fluctuating or “wave-like” symptoms: may reflect inflammation or immune activity
- New headaches after starting medication: may be treatment-related
However, these are general observations only and do not replace clinical assessment.
Headaches in Aspergillosis: Interactive Decision Aid
This tool helps patients and carers think about common patterns that can contribute to headaches in aspergillosis. It does not diagnose the cause of a headache.
It is designed to support discussion with a healthcare professional and highlight possible contributors such as sinus involvement, inflammation, medication effects, sleep disturbance, and breathing-related factors.
1. Where is the pain mainly felt?
2. When is it most noticeable?
3. What does it feel like?
4. What other features are present?
5. Are there any red flags?
Possible contributors
This panel highlights common patterns only. It is not a diagnosis and does not replace medical assessment.
Common questions
Are headaches a recognised symptom of aspergillosis?
They can occur, but are usually indirect and caused by associated factors such as sinus disease or inflammation.
Can antifungal treatment improve headaches?
In some cases, yes—if symptoms are linked to fungal-related inflammation. However, antifungals can also occasionally cause headaches as a side effect.
Are “histamine-type” headaches part of aspergillosis?
Some patients describe symptoms in this way, but the underlying mechanism is often more complex than histamine alone.
Why do my headaches change over time?
This is common and may reflect changes in inflammation, treatment, sleep, or overall health.
When to seek medical advice
You should seek medical advice if you experience:
- new or unusually severe headaches
- headaches that are worsening over time
- neurological symptoms (e.g. vision changes, weakness, confusion)
- fever, neck stiffness, or other concerning symptoms
If you are unsure whether your headaches are related to aspergillosis, treatment, or another cause, it is important to discuss this with your healthcare team.
Summary
Headaches in people with aspergillosis are usually caused by a combination of factors rather than a single issue.
The most common contributors include:
- sinus involvement
- immune and inflammatory responses
- sleep disturbance
- medication effects
Understanding patterns and changes over time can be helpful, but medical assessment is important if symptoms are new, severe, or concerning.
Author and review
Prepared for: aspergillosis.org
Audience: Patients and non-specialist readers
Important: This article is for general information only and does not replace individual medical advice.
References
- Patterson TF et al. (2016). Practice Guidelines for the Diagnosis and Management of Aspergillosis.
PMID: 27365388 - Denning DW et al. (2016). Chronic pulmonary aspergillosis guidelines.
PMID: 26699723 - Chakrabarti A et al. (2009). Fungal sinusitis: a categorization and definitional schema.
PMID: 19522756