Fansidar Tablet 500mg / 25mg

About Fansidar Tablet 500mg / 25mg

Fansidar Tablet Uses

• Treatment of uncomplicated malaria caused by susceptible Plasmodium falciparum
• Single-dose treatment for confirmed malaria in adults and older children
• Used as an alternative when artemisinin-based combination therapy is not suitable

Fansidar Tablet Benefits

• Clears susceptible malaria parasites with just one treatment dose
• Long half-life gives sustained parasite-killing action from a single dose
• Simple one-time regimen improves treatment completion
• Widely available and affordable antimalarial option

What Experts Say

Sulfadoxine and pyrimethamine target two different steps in the malaria parasite's folate pathway, which is why the combination works well as a single treatment dose rather than a daily course. This slow, long-acting action is also why Fansidar Tablet is not used for quick symptom relief.

Physicians usually reserve this combination for uncomplicated Plasmodium falciparum malaria confirmed by a blood test, rather than prescribing it on symptoms alone, since resistance patterns vary by region and self-treatment can mask a more serious infection. A single correctly weight-adjusted dose is typically enough to clear parasitaemia in a susceptible strain.

Pakistan's malaria caseload rises sharply during and after monsoon flooding, and sulfadoxine-pyrimethamine remains part of the treatment options doctors reach for, particularly when artemisinin-based combinations are unavailable. Doctors also flag that repeated or preventive use raises the risk of severe sulfa-related skin reactions, so this tablet is meant for a single treatment course, not routine prevention.

Drug Class

• Sulfonamide and folate antagonist antimalarial combination

Fansidar Tablet 500mg / 25mg formula

• Sulfadoxine + Pyrimethamine

Available forms

• Tablet

How to use Fansidar Tablet 500mg / 25mg?

• Take Fansidar Tablet as a single dose exactly as your doctor calculates for your body weight
• Swallow the tablets whole with a full glass of water
• Take after a meal to reduce stomach upset
• Do not repeat the dose on your own for prevention, this tablet is meant for one treatment course
• Seek medical review if fever continues beyond 48 to 72 hours after the dose
• Confirm the diagnosis with a malaria blood test before starting treatment whenever possible

Drug Interactions

• Folic Acid Antagonists: Combining with methotrexate or trimethoprim raises the risk of low blood counts
• Warfarin: Can increase the blood-thinning effect and bleeding risk
• Phenytoin: May raise phenytoin levels and toxicity risk
• Other Antimalarials: Avoid combining with other sulfa-based or folate antagonist antimalarials
• Diuretics: Combining with certain diuretics may raise the risk of low blood cell counts

Risks and warnings

• Sulfa Allergy: Never use if you have a known allergy to sulfonamide medicines
• Severe Skin Reactions: Carries a rare but serious risk of Stevens-Johnson syndrome and toxic epidermal necrolysis
• Blood Disorders: Can lower blood cell counts, especially with repeated use
• G6PD Deficiency: Use with caution due to risk of red blood cell breakdown
• Liver Or Kidney Disease: Needs careful dosing and monitoring in these patients
• Pregnancy: Avoid near term, folate antagonism can affect the baby, use only if your doctor confirms it is necessary

Fansidar Tablet Side Effects

• Nausea and vomiting
• Loss of appetite
• Stomach pain
• Headache
• Dizziness
• Skin rash or itching
• Allergic skin reactions (rare but serious)
• Low blood cell counts with repeated use
• Increased skin sensitivity to sunlight

Storage Conditions

• Store Fansidar Tablet below 25°C in a cool, dry place
• Keep the strip away from direct sunlight and moisture
• Store in the original pack until the dose is due
• Keep out of reach of children