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What is Doxycycline?

Doxycycline is a low cost antimalarial treatment. It should be taken preventatively if you are going to a country that is a malaria risk zone. 

Do not take this medication after the expiry date
You must take the entire course of this medication

How does Doxycycline work?

Doxycycline 100 mg capsules belong to a group of medicines called tetracycline antibiotics. These antibiotics prevent malaria from spreading in the body.


How do you take Doxycycline?

Take one tablet daily starting two days prior to leaving for your trip. Continue taking one tablet of Doxycycline daily for the duration of your trip. You must continue to take one tablet daily for four weeks upon leaving the malaria risk zone.


Take Doxycycline at the same time each day. This increases the amount of Doxycycline your body can absorb and will ultimately make your treatment more effective.


It is really important to complete the course of this antibiotic.

How effective is Doxycycline?

Doxycyline is a clinically proven medication taken to prevent malaria. In addition to taking this medication, you should take some extra precautions to prevent exposure to malaria. These include:

  • Use insect repellent on exposed areas of the skin
  • Wear light coloured clothing that covers most of the body
  • Sleep in a screened room or under a mosquito net
  • Close windows and doors at sunset
  • Consider using an insecticide (mats, sprays, plug-ins)

What are the side effects of Doxycycline?

Like all medicines, Doxycycline can cause side effects. However, not everybody experiences side effects and they are typically mild to moderate and only last a short duration.


The most common side effects of Doxycycline are:

  • Diarrhoea
  • Indigestion and nausea
  • Increased sensitivity to sunlight


For less frequent side effects, please see the patient information leaflet.

* Disclaimer: Results and individual responses to treatments may vary from person to person. If you do need medical advice you should always speak to a doctor, pharmacist or appropriate medical professional.