Aralen Hydrochloride

Aralen Hydrochloride Overview


Chloroquine is a prescription medication used to prevent and treat malaria. It is also used to treat amebiasis (an infection caused by the parasite Entamoeba histolytica). This medication belongs to a group of drugs called antimalarials and amebicides. The exact way it works to kill parasites is unknown.

Chloroquine comes in tablet form. Take this medication with food to minimize stomach upset. Chloroquine is taken once or twice a day. If used for the prevention of malaria, it is taken once a week beginning 2 weeks prior to traveling to an area where malaria is common.

Common side effects include headache, loss of appetite, diarrhea, and upset stomach.

How was your experience with Aralen Hydrochloride?

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What are you taking Aralen Hydrochloride for?

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  • Other
  • Amebiasis
  • Arthritis, Rheumatoid
  • Lupus Erythematosus, Discoid
  • Malaria
  • Malaria, Avian
  • Malaria, Falciparum
  • Pemphigus
  • Scleroderma, Systemic

How long have you been taking it?

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  • Less than a week
  • A couple weeks
  • A month or so
  • A few months
  • A year or so
  • Two years or more

How well did Aralen Hydrochloride work for you?

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Uses of Aralen Hydrochloride

Chloroquine is a prescription medication used to prevent and treat malaria. It is also used to treat amebiasis (an infection caused by the parasite Entamoeba histolytica).

This medication may be prescribed for other uses. Ask your doctor or pharmacist for more information.


For more information on this medication choose from the list of selections below.

Aralen Hydrochloride Drug Class

Aralen Hydrochloride is part of the drug class:

Side Effects of Aralen Hydrochloride

Common side effects include:

  • nausea
  • vomiting
  • diarrhea
  • stomach cramps
  • headache
  • loss of appetite
  • blurred vision
  • hearing problems
  • rash
  • hair loss

Tell your doctor if you have any side effect that bothers you or does not go away.

These are not all the possible side effects of Chloroquine. For more information, ask your doctor or pharmacist.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.

Aralen Hydrochloride FDA Warning

For Malaria and Extraintestinal Amebiasis