What Hydroxychloroquine sulfate is and what it is used for: Hydroxychloroquine sulfate is used for the following: • To treat rheumatoid arthritis (inflammation of the joints). • To treat systemic lupus erythematosus (autoimmune disease of the skin and internal organs). • To prevent malaria in certain cases. Do not take Hydroxychloroquine sulfate • If you’re allergic to Hydroxychloroquine, other similar medicines such as quinolones and quinine, or any other component of this medicine. • If you have an eye problem that affects the retina (retinopathy). Warnings & Precautions: Talk to your doctor about all your medical conditions before taking this medicine including: • If you have liver or kidney problems. • If you have stomach problems. • If you have heart problems. • If you have eye problems. • If you have psoriasis. • If you have nervous system problems. • If you have porphyria, a blood disorder. • If you have a genetic condition called glucose-6-dehydrogenase deficiency. Avoid excessive exposure to sunlight while taking this medicine. Possible side effects: Stop using this product and seek immediate medical help if you develop rash; hives; itching; red, swollen, blistered, or peeling skin; wheezing; tightness in the chest or throat; trouble breathing, swallowing, or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat. Serious side effects: • Skin reactions • Eye problems • Liver problems • Heart problems Other medicines and Hydroxychloroquine sulfate: Tell your doctor about all the medicines you are taking. Hydroxychloroquine sulfate interacts with the following medicines: • Some antibiotics • Medicines that affect the heart rhythm • Medicines used for epilepsy • Medicines used for myasthenia gravis • Medicine that affect the eyes • Medicines used for diabetes • Medicines used for heartburn • Cimetidine • Tamoxifen • Digoxin • Ciclosporin • Methotrexate • Rabies vaccine • Praziquantel How to take Hydroxychloroquine sulfate: • Take as indicated by your doctor. • Take this medicine with food or a glass of milk. • Swallow tablet whole, do not break or crush. • For rheumatoid arthritis and SLE, the usual dosing is 1-2 tablets, once or twice daily. • For malaria prevention, the usual dosing is 2 tablets once weekly. • For malaria treatment, the usual dosing is 800 mg then 400 mg after 6 hours, 12 hours and 48 hours of first dose. • For children, the dose is weight based. Your doctor will determine the dose. How to store Hydroxychloroquine sulfate: • Store at room temperature 68 to 77°F (20 to 25°C). • Keep this medicine out of reach of children. • Do not use this medicine after the expiry date stated on the package. The expiry date refers to the last day of that month