pyrimethamine - oral, Daraprim (cont.)
HOW TO USE: Take this medication by mouth usually once or twice daily or as directed by your doctor. Take this medication with food to decrease nausea and vomiting. If vomiting is severe or continues, your doctor may lower your dose or direct you to stop taking this medication. Your doctor will prescribe another medication (folic/folinic acid) to prevent blood problems caused by pyrimethamine. Follow your doctor's directions carefully. Drink plenty of fluids to prevent kidney problems if you are taking a "sulfa" medication with pyrimethamine.This medication works best when the amount of drug in your body is kept at a constant level. Therefore, take this drug and other antiparasitic drugs regularly, exactly as prescribed by your doctor. To help you remember, take it at the same time(s) each day.Dosage is based on the type of infection, your medical condition, age, and response to treatment. The length of time you will take this medication depends on your infection. Your dose must be carefully adjusted by your doctor to treat your infection and prevent serious side effects. Follow your doctor's directions carefully.Do not take more or less of this drug than prescribed. Do not stop taking it before completing this prescription unless directed to do so by your doctor, even if you feel better. Skipping or changing your dose without approval from your doctor may cause the amount of parasites to increase, make the infection more difficult to treat (resistant), or worsen side effects.Tell your doctor if your condition persists or worsens.
SIDE EFFECTS: See also How to Use section.Nausea, vomiting, and loss of appetite may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.Some people using this medication may develop serious side effects including blood problems, especially at higher doses. This risk can be reduced with the use of folic/folinic acid and regular blood tests. Tell your doctor immediately if any of these symptoms occur: easy bruising/bleeding, signs of serious infection (such as high fever, severe chills, persistent sore throat), signs of low red blood cell count (such as severe tiredness, pale lips/nails/skin, fast heartbeat/breathing with usual activities), swollen/painful tongue.Seek immediate medical attention if any of these rare but very serious side effects occur: bloody/pink urine, chest pain, slow/fast/irregular heartbeat.A very serious allergic reaction to this drug is rare. However, stop this medication immediately and seek immediate medical attention if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.In the US -Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
Medically Reviewed by a Doctor on 4/16/2014
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You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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