Is malaria prophylaxis safe in travellers?

Different destinations have different malaria risks and different patterns of medicine resistance. A travel clinician considers where you will go, how long you will stay, the season, and whether you will spend time in rural or urban areas.

The choice also depends on pregnancy or plans for pregnancy, childhood, kidney or liver problems, mental health history, allergies, and medicines or supplements you already take. Side effects vary by medicine and may include stomach upset, headache, dizziness, skin reactions, or sleep changes.

Arrange a travel health assessment before departure so there is time to select and start the recommended medicine. Take it exactly as directed and do not share tablets with another traveller.

Use bite prevention as well: cover exposed skin, apply suitable insect repellent, and sleep in a screened or treated space when advised. Prophylaxis lowers risk but does not replace these measures or a medical assessment after fever.

Seek urgent medical advice for fever, chills, severe headache, confusion, repeated vomiting, breathing difficulty, fainting, or a seizure during travel or after returning from a malaria area. Tell the clinician where you travelled and when.

Contact a clinician promptly for a widespread rash, facial swelling, severe mood or sleep changes, yellowing of the skin, or other troubling effects after starting prophylaxis. Do not stop or restart a prescribed medicine without advice unless you are having an emergency reaction.

Ask which malaria medicines fit your destination, when to start and stop them, what side effects need action, and whether your regular medicines or health conditions change the choice.