What are the possible side effects of chloroquine (Aralen Phosphate)?
Stop taking chloroquine and seek emergency medical attention if you experience an allergic reaction (flushing; swelling of the lips, tongue, or face; difficulty breathing; closing of the throat; vision problems; rash; itching; or fever). Other, less serious side effects may be more likely to occur. Continue to take chloroquine and talk to your doctor if you experience • visual disturbances such as blurred vision, misty vision, and difficulty focusing; • hearing loss or ringing in the ears; • diarrhea, nausea, stomach pain or upset, vomiting, or loss of appetite; • muscle weakness; or • a rash. 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. You may report side effects to FDA at 1-800-FDA-1088. What is the most important information I should know about chloroquine (Aralen Phosphate)?
