Single Low-Dose Primaquine to Stop Falciparum Transmission (WHO 2026)
Gives the WHO single low dose of primaquine with an ACT to cut falciparum transmission.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Weight in kg
- 30
- Low-transmission area
- Yes
- Pregnant
- No
- Infant under 1 month
- No
- Breastfeeding an infant under 1 month
- No
Result: Primaquine 7.5 mg base, one 7.5 mg tablet, once on the first day with the ACT (30 kg).
The tool opens with these values already filled in. Replace them with your own.
What you enter
- Weight in kg
- Low-transmission area
- Pregnant
- Infant under 1 month
- Breastfeeding an infant under 1 month
How this is calculated
Citation
World Health Organization. WHO guidelines for malaria, 10 September 2026. doi:10.2471/B09879. Section 5.2.1.3, reducing the transmissibility of treated P. falciparum infections (2026), p. 180. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.