🟩 Patient Advice for Starting Posaconazole

1. ✅ What It’s For:

• Used to treat or prevent serious fungal infections, especially in the lungs (like aspergillosis), or in patients with weakened immune systems.

2. 💊 How to Take It:

Form matters:

• Tablets (most common):

  • Take with food (preferably a full meal or nutritional drink).

  • Swallow whole — do not crush or chew.

• Oral suspension:

  • Take with a high-fat meal or acidic drink (like cola) to help absorption.

  • Shake well before use.

  • Must be taken multiple times a day — unlike tablets.

• IV form:

  • Given in hospital or monitored settings.

⚠️ Important: Tablets and oral suspension are NOT interchangeable. Stick with what was prescribed.

3. 🧪 Monitoring and Tests:

• Regular liver function tests (LFTs).

• Blood tests to check posaconazole levels, especially if:

  • You’re not improving

  • You’re feeling unwell

  • Other meds are added

• Electrolytes (like potassium, magnesium)

• ECG (if you’re at risk for heart rhythm problems)

4. ⚠️ Side Effects to Watch For:

Common:

• Nausea, vomiting, diarrhea

• Headache or dizziness

• Loss of appetite

• Fatigue

Call your doctor immediately if you get:

• Yellowing of skin or eyes, dark urine (possible liver problem)

• Fast or irregular heartbeat, fainting, chest pain (QT prolongation)

• Severe rash, skin peeling

• Muscle cramps, weakness, or palpitations (possible low potassium)

5. 🚫 Interactions – Very Important!

• Posaconazole interacts with many medicines:

  • Statins, blood pressure drugs, anti-seizure meds

  • Immunosuppressants (like tacrolimus, cyclosporine)

  • Steroids (levels may increase)

• Avoid grapefruit and St. John’s wort

• Always check with your doctor or pharmacist before starting new meds or supplements.

6. 🚗 Driving and Activities:

• Be careful with driving or using machinery if you feel dizzy or have vision problems.

7. 🧴 Storage:

• Tablets: room temperature

• Suspension: room temp (not refrigerated); shake well before use

🧾 In Simple Terms for the Patient:

“Take posaconazole with food every day. You’ll need blood tests to check your liver and drug levels. Let your doctor know if you feel dizzy, have yellow skin, a fast heartbeat, or any rash. Don’t take grapefruit, and always check with your doctor before starting any new medicines.”