Not medical advice. This information is for educational purposes only. Always consult a qualified doctor or pharmacist before taking any medicine. Posaconazole requires a valid prescription.
Posaconazole
Generic Name: POSACONAZOLE
Posaconazole is an azole antifungal agent.
Data last updated: 30 March 2026 · Source: openFDA.gov, DailyMed (NLM/NIH)
Common Brand Names in India:
What is Posaconazole Used For?
- Fungal infections
- Candidiasis
- Ringworm
How Does It Work?
Of the circulating metabolites, the majority are glucuronide conjugates formed via UDP glucuronidation (phase 2 enzymes).
Dosage & Administration
- Maintenance dose: 300 mg (three 100 mg delayed-release tablets) once a day, starting on the second day.
Side Effects
Common Side Effects
Serious Side Effects (seek immediate medical attention)
Warnings & Precautions
- Calcineurin-Inhibitor Toxicity : Posaconazole increases concentrations of cyclosporine or tacrolimus; reduce dose of cyclosporine and tacrolimus and monitor concentrations frequently. Arrhythmias and QTc Prolongation : Posaconazole has been shown to prolong the QTc interval and cause cases of TdP.
- Administer with caution to patients with potentially proarrhythmic conditions.
- Do not administer with drugs known to prolong QTc interval and metabolized through CYP3A4. Electrolyte Disturbances : Monitor and correct, especially those involving potassium (K + ), magnesium (Mg ++ ), and calcium (Ca ++ ), before and during posaconazole therapy. Pseudoaldosteronism : Manifested by the onset or worsening of hypertension, and abnormal laboratory findings.
Drug Interactions
Posaconazole may interact with the following medicines. Always inform your doctor about all medications you are taking.
Storage Instructions
Store at room temperature, away from moisture and heat.
Speak to a dermatologist on Zospital
Consult a dermatologist on Zospital before starting Posaconazole. Verified Indian specialists available for in-clinic and online consultations.
Other Antifungals Medicines
Sources: openFDA.gov · dailymed.nlm.nih.gov · nlm.nih.gov (RxNorm). Information is for educational purposes only. Consult a doctor before use.
FAQS
Posaconazole – Frequently Asked Questions
Common questions about Posaconazole, its uses, dosage and safety.
Posaconazole is commonly prescribed in India for: Fungal infections, Candidiasis, Ringworm. Always confirm the indication with a registered medical practitioner before starting any course.
Posaconazole is sold in India under brand names such as Posatex, Mometamax Single, Noxafil, posaconazole. You can also find it on online pharmacies like 1mg, Pharmeasy and Apollo Pharmacy.
Posaconazole is a prescription-only (Schedule H) medicine in India. You will need a valid prescription from a registered MBBS / MD doctor to purchase it from a licensed pharmacy.
Common side effects of Posaconazole can include: Nausea, Vomiting, Diarrhea, Constipation, Headache, Rash, Abdominal pain, Cough. Less common but serious side effects can include: Serious, QT prolongation. Stop the medicine and contact your doctor immediately if any of these appear.
Of the circulating metabolites, the majority are glucuronide conjugates formed via UDP glucuronidation (phase 2 enzymes).
Posaconazole can interact with: Coadministration, Clinical, Noxafil, Interaction, Rifabutin, Digoxin. Tell your doctor about every medicine, supplement and herbal product you take — including ayurvedic and homeopathy preparations — before starting Posaconazole.
Indian guidelines often recommend lower starting doses of Posaconazole for patients above 60-65, since kidney and liver function decline with age. A doctor should review the dose, especially if the patient already takes BP, sugar or heart medicines.
Pregnancy safety of Posaconazole depends on the trimester and individual case. Indian gynaecologists usually avoid Category C/D drugs unless benefit clearly outweighs risk. Speak to your obstetrician before taking Posaconazole during pregnancy or while planning conception.
Prices in India typically range from ₹30 – ₹500 per strip / vial depending on brand. Generic versions tend to cost 30-60% less than branded ones, and Jan Aushadhi outlets often stock the lowest-priced equivalents. Check 1mg or Pharmeasy for live MRP.
If you remember within a few hours of the missed dose, take it. If it is nearly time for the next dose, skip the missed one — never double up. Frequent missed doses reduce Posaconazole's effectiveness, so consider setting a reminder or speaking to your doctor about a simpler schedule.
You can book an in-person or online consultation with a verified Indian specialist on Zospital — visit the doctor directory at https://zospital.com/doctor to find one near you.
Medical Disclaimer
The content provided on Zospital is for general informational and educational purposes only. It is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified healthcare provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on this website. If you think you may have a medical emergency, call your doctor or emergency services immediately.