Malirid (Primaquine) treats and prevents malaria caused by Plasmodium vivax and Plasmodium ovale. It works by killing liver-stage parasites called hypnozoites, which prevents malaria from coming back. In addition, Malirid blocks the transmission of Plasmodium falciparum (Mayo Clinic, Drugs.com, WHO).
Key Benefits & Uses
-
Prevents relapse of P. vivax and P. ovale malaria (CDC).
-
Reduces transmission of P. falciparum malaria.
-
Also serves as preventive treatment for travelers to malaria-prone areas (Healthline).
-
Can be combined with other antimalarial drugs for better results (PubMed).
How to Use
Take Malirid as an oral tablet. The dose depends on your condition:
-
Radical Cure (Prevent Relapse): 0.25 mg/kg daily for 14 days.
-
Transmission-Blocking Therapy: Single dose of 0.25 mg/kg.
Also, take the medicine with food to reduce stomach discomfort (CDC).
Important Safety Information
-
G6PD Deficiency: Avoid Malirid if you have severe G6PD deficiency because it can cause hemolytic anemia (FDA).
-
Pregnancy: Only use if your doctor considers it necessary (Mayo Clinic).
-
Drug Interactions: Be cautious with medications that can affect heart rhythm (FDA, WebMD).
Common Side Effects
-
Nausea and vomiting
-
Stomach cramps
-
Dizziness
-
Headache
Most side effects are mild. However, contact your doctor if they persist or worsen (Mayo Clinic).
Why Choose Malirid (Primaquine)?
Malirid targets both the acute and relapse stages of malaria. Furthermore, it is part of the World Health Organization’s Essential Medicines List, showing its importance in global health (WHO).

