Order safe and effective antimalarials from Dr Felix

Chloroquine is no longer available from Dr Felix, but we still have a range of malaria tablets available.

Malaria can begin rapidly therefore protection with anti-malaria tablets is recommended.

Our prices

Strength Quantity Price Stock
250mg12 tablets£11.99Out of Stock
250mg14 tablets£13.99Out of Stock
250mg16 tablets£15.99Out of Stock
250mg18 tablets£17.99Out of Stock
250mg20 tablets£19.99Out of Stock
250mg22 tablets£21.99Out of Stock
250mg26 tablets£23.99Out of Stock
250mg34 tablets£29.99Out of Stock
250mg62 tablets£56.99Out of Stock
250mg114 tablets£99.99Out of Stock
Prices exclude a prescription fee. This treatment requires a quick online consultation,
which a doctor will review to determine if a prescription is appropriate.

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What is Chloroquine?

Chloroquine is a medicine to prevent malaria which is a life threatening disease caused by mosquitos. It is also used to treat malaria in the event you have transmitted it from a mosquito bite. 

How does Chloroquine work?

Chloroquine works by combating the parasite carrying the disease within the red blood cells, killing them off and preventing them from invading and multiplying. The parasites are called plasmodium, which are carried by infected mosquitoes. This is transferred to your bloodstream from a mosquito bite. Chloroquine is usually taken a week before you travel to prevent malaria. 

Can Chloroquine cure malaria?

Chloroquine is used as a preventative measure to stop you from getting malaria. If you do contract the disease you should see a health professional right away. A higher dose may be used to treat it or you may be given a different medicine.

Is Chloroquine safe?

Chloroquine is safe to use in most people if the instructions are followed accurately. Chloroquine is not suitable for everyone however and it can be toxic if an overdose is taken.


Active ingredients

The active ingredient is Chloroquine phosphate.

Inactive ingredients

Magnesium stearate (E572) and maize starch are the inactive ingredients in Chloroquine. 

Please Note: Some different brands of generic Chloroquine may contain different inactive ingredients.


Chloroquine dosage

Each tablet is a 250mg dose. Generally, you take 2 tablets once a week, along with two Proguanil every day.

How to take Chloroquine

You should start taking Chloroquine 1 week before you travel and continue with the medicine for the duration of your trip and for 4 weeks after you return home. Chloroquine is taken as two tablets once a week alongside two Proguanil tablets every day. For children under 14 the doses are smaller. The tablet should be taken after food and with a glass of water or juice. 

Side Effects

Does Chloroquine cause photosensitivity?

Being sensitive to the light is one of the possible side effects of Chloroquine. 

Chloroquine side effects

There are a number of possible side effects associated with Chloroquine. You may experience: 

  • Changes to heartbeat 
  • Feeling faint or dizzy from low blood pressure
  • Lung inflammation
  • Mouth ulcers
  • Headaches
  • Fits
  • Muscle spasms
  • Insomnia
  • Mood changes
  • Rash
  • Light sensitivity 
  • Hair loss
  • Blurred eyesight or difficulty focusing 
  • Tinnitus
  • Reduced blood cells
  • Liver problems 
  • Upset stomach

You may not experience any side effects at all but if you do, you should let your GP know as it may be necessary to switch to a more suitable medicine. 


Chloroquine shouldn’t be taken if you are allergic to any of the ingredients or if you are taking Amiodarone to steady your heart rate. Caution should be taken if you have:

  • Epilepsy 
  • Had liver or kidney problems in the past
  • Porphyria (a rare blood disease)
  • Psoriasis
  • Myasthenia gravis (a muscular condition)
  • Glucose-6-phosphate dehydrogenase deficiency
  • A history, or family history, of heart problems 

If any of these issues apply to you then ask your doctor for advice before taking Chloroquine. 

Drug interactions

Chloroquine cannot be taken at the same time as Amiodarone. Consult your doctor if you are taking any of the following:

  • Praziquantel 
  • Cyclosporine
  • Anti-convulsant medication 
  • Digoxin
  • Warfarin
  • Antiarrhythmics 
  • Tricyclic antidepressants
  • Antipsychotics 
  • Mefloquine
  • Levothyroxine
  • Epilepsy treatment
  • Agalsidase
  • Boosted protease-inhibitors 
  • Cimetidine
  • Adsorbents
  • Antacids

Chloroquine and pregnancy

Chloroquine is generally safe to use during pregnancy but it’s not recommended to travel to regions where malaria is present if you are pregnant. Malaria poses a much higher risk to pregnant women.

Chloroquine and alcohol

Drinking alcohol can make the side effects of Chloroquine worse. It’s advised to see your doctor if this occurs and drink in moderation.

Treatment Options

For which countries is Chloroquine suitable?

Chloroquine is not usually suitable to prevent malaria on its own as it doesn’t protect against the most dangerous form of parasite, Plasmodium falciparum. It can provide a measure of protection in certain countries in sub-Saharan Africa, South America and Asia. Discuss your travel plans with your doctor so that they can prescribe you with the best treatment against malaria for your destination. You can also look at our malaria map and risk list to find out which medications you may need when you travel.

How effective is Chloroquine?

Chloroquine is only effective in certain parts of the world where the Plasmodium falciparum parasite is not present. Your doctor or pharmacist will be able to prescribe you with the most suitable treatment depending on where you are travelling to.

Other ways to avoid malaria

Whilst antimalarials are usually recommended, there are other steps you can take to reduce your risk of malaria:

  • Cover up with adequate clothing in the evening and overnight as this is the time period where mosquitoes feed.
  • Air conditioning or plug-in vaporisers can help to deter them and it’s advisable to wear insect repellent on areas of your skin which are exposed.
  • Sleep underneath a mosquito net treated with insecticide to keep them at bay.

But remember, in most cases, antimalarial tablets are still the best option.

Chloroquine alternatives

Other types of medicine designed to prevent malaria are Malarone (Atovaquone and Proguanil), Doxycycline and Lariam (Mefloquine). Chloroquine is limited in its suitability depending on what country you are travelling to as the more serious malaria parasites are immune to it.


Is Chloroquine available on the NHS?

Chloroquine is available to buy on prescription but it is not available on the NHS.

Does Chloroquine protect against malaria?

Chloroquine may provide protection against malaria in countries where the Plasmodium falciparum parasite is not present. The medicine is usually taken in combination with another tablet called Proguanil in order to effectively protect you from malaria in certain counties. 

Should I buy Chloroquine before I travel?

Yes, you should buy Chloroquine before you travel as you’ll need to start taking it one week before so that you will be protected against malaria.

Can Chloroquine help lupus?

Chloroquine may be prescribed along with other medicines to treat lupus. It helps to combat the sensitivity to UV light and sunlight and improves skin lesions. Chloroquine usually takes a couple of months to have an impact on lupus. 

Does Chloroquine increase your cancer risk?

Chloroquine is not known to increase your risk of cancer.

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