Mefloquine Oral: Dosing and Precautions
Mefloquine guidance for malaria treatment with artesunate, with neuropsychiatric and cardiac precautions.
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Source reviewed
source date listed on the source page
Guide category
Potentially dangerous, obsolete, or ineffective
Safety boundary
Prescription medicine information for clinician-guided use.
Kenza Health Hub presents this medicine page as structured health education. Check dose, route, interactions, pregnancy or breast-feeding considerations, and local protocol with a qualified clinician or pharmacist. Read our medical editorial policy.
Use restrictions
Do not administer the combination artesunate-mefloquine as separate tablets. Use co-formulated tablets.
Therapeutic action
Antimalarial.
Indications
- Treatment of uncomplicated falciparum malaria.
- Treatment of uncomplicated malaria due to other Plasmodium species, when chloroquine cannot be used.
- Completion treatment following parenteral therapy for severe malaria.
Forms and strengths
250 mg scored tablet.
Dosage and duration
Child 6 months and over (5 kg and over) and adult: 8 mg/kg once daily for 3 days, in combination with artesunate.
Contra-indications, adverse effects, precautions
- Do not administer to patients with neuropsychiatric disorders or history thereof, seizures, hypersensitivity to mefloquine or quinine, or mefloquine treatment in the previous 4 weeks.
- For completion treatment following parenteral therapy for severe malaria: do not administer if the patient developed neurological signs during the acute phase.
- May cause gastrointestinal disturbances, dizziness, headache, sleeping disorders, and more rarely neuropsychiatric reactions, heart rhythm disorders, hypo- or hypertension, and skin allergies.
- If the patient vomits less than 30 minutes after administration, repeat the full dose. If the patient vomits within 30 to 60 minutes, re-administer half the dose.
- Do not combine with anti-epileptics, co-artemether, or chloroquine.
- Do not administer simultaneously with quinine. If mefloquine is used after quinine IV, administer mefloquine 12 hours after the last dose of quinine.
- Administer with caution to patients taking antiarrhythmics, beta-blockers, calcium-channel blockers, or digitalis.
- Pregnancy: no contra-indication.
- Breast-feeding: no contra-indication.
Source
MSF Essential drugs practical guidelines (January 2026)
This page combines source-derived medicine reference sections with Kenza editorial context, while leaving out the Storage and Remarks sections from the source batch.
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