Fansidar Dosage

Generic name: sulfadoxine and pyrimethamine
Dosage form: Tablets
Drug class: Antimalarial combinations

Medically reviewed by Drugs.com. Last updated on Dec 4, 2024.

The dosage should be swallowed whole, and not chewed, with plenty of fluids after a meal.

Treatment of Acute Malaria

Adults	2 to 3 tablets taken as a single dose.

Pediatric patients (>2 months to 18 years)	The dosage for treatment of malaria in children is based upon body weight:
Weight (kg)	Number of Tablets Taken as a Single Dose
>45	3
31 to 45	2
21 to 30	1 ½
11 to 20	1
5 to 10	½

Prevention of Malaria

The malaria risk must be carefully weighed against the risk of serious adverse drug reactions (see INDICATIONS AND USAGE). If Fansidar is prescribed for prophylaxis, it is important that the physician inquires about sulfonamide intolerance and points out the risk and the need for immediate drug withdrawal if skin reactions do occur.

The first dose of Fansidar should be taken 1 or 2 days before arrival in an endemic area; administration should be continued during the stay and for 4 to 6 weeks after return.

	Once Weekly	Once Every 2 Weeks
Adults	1 tablet	2 tablets

Pediatric patients (>2 months to 18 years)	The dosage for prevention of malaria in children is based upon body weight:
Weight (kg)	Number of Tablets Taken Once Weekly
>45	1 ½
31 to 45	1
21 to 30	¾
11 to 20	½
5 to 10	¼