Pyrimethamine Oral
In Depth
- Uses and How to Use
- Dosage and Storage
- Precautions and Side Effects
- Drug Interactions
- Drug Images
Pronounced: (pir-ih-METH-uh-meen)
Pyrimethamine Oral Interactions
Your doctor or pharmacist may already be aware of any possible drug interactions and may be monitoring you for them. Do not start, stop, or change the dosage of any medicine before checking with your doctor or pharmacist first.
This drug should not be used with the following medication because very serious interactions may occur:
- penicillamine
If you are currently using the medication listed above, tell your doctor or pharmacist before starting pyrimethamine.
Before using pyrimethamine, tell your doctor or pharmacist of all prescription and nonprescription/herbal products you may use, especially of drugs that may cause a decrease in white blood cells:
- sulfa drugs (e.g., sulfamethoxazole)
- trimethoprim
- proguanil
- zidovudine
- chemotherapy drugs (e.g., methotrexate)
Also tell your doctor or pharmacist if you are taking lorazepam or drugs that may lower blood folate levels (e.g., phenytoin).
This document does not contain all possible interactions. Therefore, before using this product, tell your doctor or pharmacist of all the products you use. Keep a list of all your medications with you, and share the list with your doctor and pharmacist.
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