Malarone vs Doxycycline: Which Malaria Tablet Is Right for You?

Choosing the right malaria tablet can feel confusing. Both Malarone and doxycycline are widely used, effective, and available through UK pharmacies. But they work differently, suit different trips, and come with different side effect profiles.

This guide breaks it all down so you can have a more informed conversation with your pharmacist or travel health clinician.

Malarone vs Doxycycline at a Glance

How Malarone Works

Malarone is a prescription antimalarial that contains two active ingredients: atovaquone and proguanil. These two compounds work together to disrupt the malaria parasite’s ability to reproduce in your bloodstream. 

You take one tablet daily, starting one to two days before entering a malaria risk area. After leaving, you continue for just seven days. That shorter post-travel course is one of its biggest practical advantages. 

Although Malarone carries a 28-day license, UK clinical standards frequently permit its use for up to three months. However, for extended travel, doxycycline is often the practical choice because it is significantly more affordable.

Advantages:

• Short post-travel course (7 days)
• Well-tolerated by most people
• No sun sensitivity
• Can be started close to departure

Disadvantages:

• More expensive than doxycycline
• Not recommended for trips longer than 28 days
• Not suitable in pregnancy or for people with severe kidney problems

How Doxycycline Works

Doxycycline is a tetracycline antibiotic that also prevents malaria by inhibiting the parasite’s protein production. It has been used as an antimalarial for decades and is widely trusted in travel health settings.

You start it one to two days before travel and take one capsule daily throughout your trip. Crucially, you must continue for 28 days after leaving the malaria zone.

Advantages:

• Significantly cheaper than Malarone
• Suitable for long trips
• Also protects against some traveller’s diarrhoea-causing bacteria

Disadvantages:

• 28-day post-travel course (easy to forget)
• Causes increased sensitivity to sunlight
• Must be taken with food and a full glass of water
• Not suitable in pregnancy or for children under 12

Malarone vs Doxycycline: How Effective Are They?

Both medications offer high-level protection against Plasmodium falciparum, the most dangerous malaria species. Studies consistently show efficacy rates above 95% for both when taken correctly.

The word “correctly” matters here. Missing doses or stopping early significantly reduces protection for both drugs. Doxycycline’s longer post-travel course means there are more opportunities to slip up.

In areas with chloroquine-resistant malaria, particularly sub-Saharan Africa and parts of Southeast Asia, both remain recommended options by the ACMP guidelines (UKHSA). Regional resistance patterns change, so always check destination-specific advice from NaTHNaC or a travel health clinic before you travel.

Malarone vs Doxycycline Side Effects Compared

Common Side Effects

Side Effects Unique to Each Drug

Malarone:

• Vivid or unusual dreams (reported by some users)
• Mouth ulcers (rare)

Doxycycline:

• Photosensitivity (sunburn risk increases significantly)
• Oesophageal irritation if not taken with enough water
• Thrush or vaginal candidiasis (more common with prolonged use)
• Disruption to gut bacteria with long-term use

Taking doxycycline on an empty stomach is a common mistake. It raises the risk of nausea and oesophageal damage. Always take it with a full meal and 200ml of water.

Which Malaria Tablet Is Right for Your Trip?

Best for Short Trips (Under 4 Weeks)

Malarone is generally preferred. The seven-day post-travel course is much easier to complete, and there is no sun sensitivity issue to manage. For a two-week holiday, the higher cost is more manageable.

Best for Long-Term Travel

Doxycycline is the practical option for trips stretching beyond four weeks. Malarone is not routinely recommended for continuous use beyond 28 days. Doxycycline can be taken for months safely under medical supervision.

Best for Budget Travellers

Doxycycline wins clearly on cost. At roughly £20-£40 for a four-week supply versus £60-£100 for Malarone, the saving becomes significant on longer trips. If you are travelling for three months, the difference could be well over £200.

Best for Travellers Concerned About Sun Exposure

Malarone is the better pick here. Doxycycline causes photosensitivity, which means your skin burns faster and more severely in the sun. For beach destinations or trips with a lot of outdoor activity, this matters. Malarone carries no such risk.

Best for Convenience

Malarone has the edge. Starting just one to two days before travel and stopping seven days after returning keeps the course short and simple. Many travellers find the 28-day post-travel course of doxycycline easy to forget once they are home.

Best for Backpackers

This one depends. Backpackers on tight budgets doing long stints in multiple countries often do well on doxycycline. Those doing shorter stints across multiple regions might prefer Malarone for its simplicity. Discuss your exact itinerary with a pharmacist before making a decision.

Frequently Asked Questions

Is doxycycline as effective as Malarone against malaria?

Yes, both offer comparable protection when taken correctly. Studies show efficacy rates of over 95% for both drugs against falciparum malaria. Effectiveness comes down to consistency, not which tablet you pick.

Can you take Malarone and doxycycline together?

No. You should only take one antimalarial at a time. Taking both provides no extra protection and increases the risk of side effects. If one is not suitable for you, your pharmacist or clinician will recommend an alternative such as mefloquine (Lariam).

Which malaria tablet causes fewer side effects?

It varies between individuals. Malarone is generally considered better tolerated, particularly regarding gut side effects. Doxycycline’s photosensitivity and oesophageal risks are more predictable and tend to affect more people. That said, some people experience no side effects from either.

What happens if I miss a dose of my antimalarial?

Missing a dose reduces your protection. Take the missed dose as soon as you remember, unless it is almost time for your next one. Never double up. Contact your pharmacist if you are unsure, especially if you are already in a malaria risk area.

Do I still need to use insect repellent if I am taking antimalarials?

Yes, without question. Antimalarials reduce your risk if you are bitten by an infected mosquito, but they do not prevent bites. DEET-based repellent, long sleeves at dusk, and mosquito nets all remain important. Antimalarials are one part of a broader prevention strategy, not a standalone solution.

Conclusion

Malarone and doxycycline are both reliable, widely used antimalarials recommended in UK travel health guidelines. Malarone suits shorter trips, travellers who want a brief post-travel course, and those spending a lot of time in the sun. Doxycycline is better suited to longer trips and travellers watching their budget. Neither drug is the automatic right answer.

Before your trip, speak to a pharmacist or travel health clinician who can review your destination, medical history, and travel dates. Many pharmacies now offer travel health consultations with no GP referral needed.

Book a travel health consultation at our pharmacy and get the right antimalarial advice before you fly.

Zainab Master

Zainab Master is the Superintendent Pharmacist and owner of Your Local Pharmacy. With extensive experience in community pharmacy and patient care, she is dedicated to helping local patients access safe, professional, and convenient healthcare services. Zainab specialises in pharmacy-led treatments, travel vaccinations, earwax removal, contraception services, blood pressure checks, and everyday health advice. Her focus is on providing trusted healthcare support with a patient-first approach.