Posaconazole belongs to the class of medications called antifungals.
It is used to prevent certain serious fungal infections for people 13 years of age and older whose immune systems may be weakened by other medications or diseases. Posaconazole works by killing or stopping the growth of some types of fungi (Candida and Aspergillus) that can cause infections in people.
This medication is typically used only once a day. However, your doctor or pharmacist may have suggested a different schedule that is more appropriate for you. Generally, a treatment with this medication lasts several days. Take it for the entire time prescribed in order to achieve the medication’s full benefit.
Important: Follow the instructions on the label. Do not use more of this product, or more often, than prescribed. This medication should be swallowed whole. It should not be split, crushed or chewed.
If you forget a dose, take it as soon as you remember — unless it is almost time for your next dose. In that case, skip the missed dose. Do not double the next dose to catch up. This medication may be taken with or without food.
Avoid consuming alcohol or alcohol-containing products while taking this medication.
In addition to its desired action, this medication may cause some side effects, notably:
- it may cause headaches;
- it may cause spots or redness of the skin;
- it may cause nausea and vomiting.
- it may cause diarrhea;
- it may cause a fever;
Each person may react differently to a treatment. If you think this medication may be causing side effects (including those described here, or others), talk to your doctor or pharmacist. He or she can help you to determine whether or not the medication is the source of the problem.