Mefloquine – What It Is and When You Need It

If you’ve been told to take a pill before traveling to a malaria‑prone area, you’ve probably heard of mefloquine. It’s an antimalarial tablet that works by stopping the malaria parasite from growing in your blood. Doctors usually prescribe it for short trips to places like parts of Africa, Asia, or South America where malaria risk is high.

Unlike some other malaria pills, you take mefloquine once a week. That makes it handy if you’re out of the country for a few weeks and don’t want to remember a daily dose. The drug has been on the market for decades, so there’s plenty of data on how it works and who should avoid it.

How Mefloquine Works and When It’s Used

Mefloquine disrupts the parasite’s ability to digest hemoglobin – a key step in its life cycle. By doing that, the drug clears the infection before it can cause symptoms. Doctors typically recommend it for:

  • Travel to regions with chloroquine‑resistant malaria.
  • People who can’t take other antimalarials because of allergies or other medical conditions.
  • Those who prefer a weekly dosing schedule.

The standard adult dose is 250 mg taken as a single tablet once a week, starting 1–2 weeks before you arrive in the malaria zone, continuing throughout your stay, and for four weeks after you leave. Kids get a lower dose based on weight, so always follow your doctor’s instructions.

Safety Tips and Buying Guide for Mefloquine

Like any medication, mefloquine can cause side effects. The most common are nausea, dizziness, and headache, especially when you first start taking it. Some people report vivid dreams or mood changes. If you notice severe anxiety, depression, or hallucinations, stop the drug and see a doctor right away – those reactions, though rare, need immediate attention.

Because mefloquine stays in your system for a while, it’s important to be honest about any medical history, especially if you’ve had seizures, psychiatric conditions, or heart problems. Your pharmacist can help you weigh the risks.

When buying mefloquine online, stick to licensed pharmacies that require a prescription. Look for sites that display a UK or US pharmacy registration number, have a pharmacist contact, and use secure HTTPS connections. Avoid “no‑prescription” offers; they’re often counterfeit and could be dangerous.

Here’s a quick checklist before you click “buy”:

  1. Check if the pharmacy is accredited (look for GPhC in the UK or NABP in the US).
  2. Make sure the price isn’t dramatically lower than other reputable sites – that’s a red flag.
  3. Read the return and privacy policies – legit pharmacies are transparent.
  4. Confirm that the product label shows the correct dosage and manufacturer.

Once you have the medication, store it at room temperature, away from moisture and heat. Don’t share your pills with anyone, and keep them out of reach of children.

In short, mefloquine is a reliable option for malaria prevention if you need a weekly dose and have no contraindications. Use it exactly as your doctor says, watch for side effects, and only purchase from trusted pharmacies. Doing those things will help you stay safe while you enjoy your trip.

Lariam (mefloquine) guide: uses, dosage, side effects & alternatives

Lariam (mefloquine) guide: uses, dosage, side effects & alternatives

A practical guide to Lariam - what it is, how it works, proper dosage, common side effects, safety tips and alternative malaria medicines for travellers.