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What side effects does hydroxychloroquine cause?

Donna Hill Howes, RN
Family Practitioner

Side effects may include retinal problems, headaches, dizziness, loss of appetite, nausea, vomiting, abdominal cramps, diarrhea, and skin problems. Rarely, people have developed cardiomyopathy (disease of the heart muscle).

This answer was adapted from Sharecare's award-winning AskMD app. Start a consultation now to find out what's causing your symptoms, learn how to manage a condition, or find a doctor.

Based on information from iGuard.org, a free medication monitoring service, 13% of patients experience side effects while taking Hydroxychloroquine (Plaquenil). Some of the side effects reported by iGuard members include: Grogginess/Confusion, Nausea/Vomiting, Mood/Behavior Changes, Abdominal Pain/Cramps, Vision Changes, and Itch/Rash. Please follow up with your doctor or other healthcare provider if you are experiencing any symptoms that worsen or do not go away.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.