May 29, 2017
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Primaquine Patient Information Including Side Effects

Brand Names:

Generic Name: primaquine (Pronunciation: PRIM a kwin)

What is primaquine ?

Primaquine is an antimalarial drug. The exact way that primaquine works is unknown.

Primaquine is used to treat and prevent malaria.

Primaquine may also be used for purposes other than those listed in this medication guide.

What are the possible side effects of primaquine ?

Stop taking primaquine and seek emergency medical attention if you experience an allergic reaction (flushing; swelling of your lips, tongue, or face, difficulty breathing; closing of your throat; vision problems; a rash; or itching).

Notify your doctor if you experience darkening of your urine.

Nausea, stomach pain or upset, vomiting, and loss of appetite may also occur during therapy.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Read the Primaquine (phosphate tablets) Side Effects Center for a complete guide to possible side effects

What is the most important information I should know about primaquine ?

Notify your doctor if your urine turns dark.

Use caution when driving or performing other hazardous activities until you know how this medication affects you. Primaquine may cause visual disturbances such as blurred vision, misty vision, and difficulty focusing. Report any vision or hearing changes to your doctor.

Side Effects Centers

Report Problems to the Food and Drug Administration


You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

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