What should you know about prophylaxis for malaria for travellers?

Malaria is spread by infected mosquitoes in some parts of the world. Prophylaxis means taking a prescribed preventive medicine before, during, and sometimes after travel, depending on the medicine and destination. The choice is not the same for every traveller: local malaria patterns, resistance, the length and type of trip, pregnancy, age, kidney or liver problems, mental health history, and other medicines can all matter.

Preventive tablets lower the chance of malaria but cannot remove it completely. Use an insect repellent, wear clothing that covers skin, sleep in screened or treated spaces, and follow local advice. A travel health consultation can match prevention to your itinerary, including rural stays, evening activities, stopovers, and remote travel.

Arrange advice before departure so there is time to review your health history and obtain the right prescription. Share your full itinerary, departure and return dates, planned activities, pregnancy or breastfeeding status, allergies, and every medicine or supplement you use. Take the medicine exactly as prescribed and keep it with you while travelling; do not share doses or change the schedule without clinical advice.

Prevent mosquito bites throughout the trip, including at times and places where mosquitoes may be active. If you miss a dose, check the medicine instructions or contact a clinician or pharmacist promptly rather than doubling up on your own. Keep a note of the medicine name and your travel dates for any clinician who assesses you later.

Seek urgent medical assessment for fever, chills, sweats, headache, unusual tiredness, confusion, breathing difficulty, or muscle aches during travel or after returning from a malaria area. Tell the clinician where you travelled and when, and say that malaria exposure is possible. Malaria can become serious quickly, even when preventive medicine was taken, so do not wait for symptoms to settle or rely on a home test.

A clinician may arrange a blood test or other assessment based on your symptoms and travel history. If you become severely unwell, faint, confused, or unable to drink, use emergency services immediately and take your medication details with you.

Ask which areas on your itinerary carry malaria risk, which preventive medicine fits your health history, when to start and stop it, and what side effects need prompt advice. Ask whether any regular medicine, pregnancy plan, or allergy changes the choice, and what symptoms should trigger assessment after you return.