Hydroxychloroquine sulfate is the active ingredient. Formulations may also contain inactive ingredients (excipients) such as fillers, binders, and coatings that vary depending on the manufacturer and specific product.

Treatment of malaria caused by susceptible strains of Plasmodium falciparum and Plasmodium vivax.

Treatment of rheumatoid arthritis.

Treatment of systemic lupus erythematosus (SLE).

Treatment of porphyria cutanea tarda.

Hydroxychloroquine's exact mechanism is not fully understood, but it's believed to work by interfering with the parasite's ability to digest hemoglobin in malaria, and by modifying the immune response in autoimmune diseases like rheumatoid arthritis and lupus. It's thought to reduce inflammation and suppress the immune system.

Store at room temperature, away from moisture and direct sunlight. Keep out of reach of children. Discard any medication that is outdated or shows signs of deterioration.

Dosage varies greatly depending on the condition being treated and the patient's individual needs. Always follow the prescribed dosage and instructions from your doctor or pharmacist.

The medication can be taken with or without food, as directed by your physician.

Do not stop taking the medicine without consulting your doctor.

Nausea

Vomiting

Diarrhea

Headache

Dizziness

Loss of appetite

Abdominal pain

Skin rash

Itching

Blurred vision

Changes in color vision

Alcohol Consumption

Avoid excessive alcohol consumption as it can worsen some side effects.



While Driving or operating Machinery

Avoid driving or operating machinery if experiencing dizziness or blurred vision.



Pregnant & Breastfeeding Women

Consult your doctor before taking hydroxychloroquine if pregnant or breastfeeding. The drug can pass into breast milk.



Children

Dosage and safety in children vary and require careful medical supervision.



Kidney

Kidney disease may affect the elimination of the drug; dosage adjustment may be necessary.



Liver

Liver disease may affect the metabolism of the drug; dosage adjustment may be necessary.

Your doctor or pharmacist.

The FDA drug information website.

Reputable medical journals and textbooks (specific references would need to be cited if used to generate this content).