Daraprim Information

Pyrimethamine is an antiparasitic drug. It prevents the growth and reproduction of parasites.

Pyrimethamine is used to treat and prevent malaria. Pyrimethamine is also used in the treatment of toxoplasmosis.

Pyrimethamine may also be used for purposes other than those listed in this medication guide.

What is the most important information I should know about Daraprim (pyrimethamine)?

Stop taking pyrimethamine and seek medical attention at the first sign of a skin rash, sore throat, paleness of the skin, unusual bruising under the skin, or swelling of the tongue. These may be early symptoms of serious side effects of pyrimethamine. Pyrimethamine may cause stomach upset or vomiting. Take each dose with food to lessen this side effect.
What should I discuss with my healthcare provider before taking Daraprim (pyrimethamine)?

Before taking pyrimethamine, tell your doctor if you have

had an allergic reaction to previous treatment with pyrimethamine,
megaloblastic anemia due to folate deficiency,
seizures or epilepsy,
kidney disease, or
liver disease.
You may not be able to take pyrimethamine, or you may require a dosage adjustment or special monitoring during treatment if you have any of the conditions listed above.

Pyrimethamine is in the FDA pregnancy category C. This means that it is not known whether pyrimethamine will be harmful to an unborn baby. Do not take pyrimethamine without first talking to your doctor if you are pregnant or could become pregnant during treatment. Pyrimethamine passes into breast milk and may be harmful to a nursing infant. Do not take pyrimethamine without first talking to your doctor if you are breast-feeding a baby.