Artemether-Lumefantrine: Uses, 3-Day Dosing and WHO Guidance

The world's most-used ACT: how artemether-lumefantrine works, the 6-dose 3-day schedule, taking it with fat, and WHO's latest guidance for pregnancy and infants.

Why AL became the world's leading ACT

Artemether-lumefantrine (AL) is the most widely used artemisinin-based combination therapy in the world. It combines artemether, which clears parasites fast, with lumefantrine, which stays in the blood for days to finish the job. It is the first-line treatment for uncomplicated P. falciparum malaria in most endemic countries, and the backbone of public-sector malaria tenders.

The 3-day, 6-dose schedule

  • One dose is taken twice a day for 3 days — 6 doses in total.
  • The number of tablets per dose depends on body weight bands; pediatric tablets and high-strength adult tablets (e.g. 80/480 mg) cover the full range.
  • Take with fat: a fatty meal, milk or breast milk significantly improves lumefantrine absorption and cure rates.

WHO guidance for special groups

  • Pregnancy: WHO recommends AL for uncomplicated malaria in all trimesters, including the first (recommendation updated in 2022) — an important shift that simplified national guidelines.
  • Infants under 5 kg: the 2026 WHO guideline states these babies should receive an ACT at the same mg/kg target dose as 5 kg children, and highlights a new AL formulation (ratio 1:12) for babies under 5 kg that received regulatory approval in 2025.
  • Travellers: non-immune travellers with confirmed malaria should also receive an ACT such as AL.

Procurement checklist

  • Confirm strength (e.g. 20/120 mg vs 80/480 mg) matches your program's weight bands.
  • Ask for dispersible pediatric options where swallowing is difficult.
  • Require batch COA, stability data and CTD dossier for registration.

Source: summarised in plain language from the WHO Guidelines for Malaria (10 September 2026), World Health Organization. This guide is for buyer education only — clinical decisions must follow the locally approved product insert and national treatment guidelines.

✎ 💬 ↑
👋 Hi! I'm Care, your product guide. Tap me to ask about our medicines & APIs. ×
Care - product guide assistant