Hydroxychloroquine sulfate, USP has the following structural formula: Molecular Weight of 433.95 Each tablet, for oral administration, contains 200 mg hydroxychloroquine sulfate, USP (equivalent to 155 mg base). In addition, each tablet contains the following Inactive Ingredients: colloidal silicon dioxide, dibasic calcium phosphate, hypromellose, macrogol/PEG 3350, magnesium stearate, polysorbate 80, pregelatinized starch, talc and titanium dioxide. Hydroxychloroquine natural alternatives Plaquenil and complement levels Drug Information on Plaquenil, Plaquenil Sulfate, Quineprox hydroxychloroquine includes side effects, uses, drug interactions, dosage, drug pictures, overdose symptoms, and what to avoid. Hydroxychloroquine is usually taken with food or milk to prevent stomach upset. The dosage and length of treatment are based on your medical condition and response to therapy. In children, dosage. It is frequently sold as a sulfate salt known as hydroxychloroquine sulfate. 200 mg of the sulfate salt is equal to 155 mg of the base. Brand names of hydroxychloroquine include Plaquenil, Hydroquin, Axemal in India, Dolquine, Quensyl, Quinoric. References A number of fatalities have been reported following the accidental ingestion of chloroquine, sometimes in relatively small doses (0.75 g or 1 g in one 3-year-old child). The drug possesses antimalarial actions and also exerts a beneficial effect in lupus erythematosus (chronic discoid or systemic) and acute or chronic rheumatoid arthritis. Use of this drug is contraindicated (1) in the presence of retinal or visual field changes attributable to any 4-aminoquinoline compound, (2) in patients with known hypersensitivity to 4-aminoquinoline compounds, and (3) for long-term therapy in children. Children are especially sensitive to the 4-aminoquinoline compounds. Hydroxychloroquine sulfate tablets 400mg Hydroxychloroquine Professional Patient Advice -, Hydroxychloroquine SULFATE - Plaquenil and eggsPlaquenil and gerdPlaquenil toxicity and eyesPlaquenil for psoriatic arthritisCompound chloroquine section top Hydroxychloroquine sulfate tablets are indicated for the treatment of chronic discoid lupus erythematosus and systemic lupus erythematosus in adults. Rheumatoid Arthritis. Hydroxychloroquine sulfate tablets are indicated for the treatment of acute and chronic rheumatoid arthritis in adults. Contraindications Hydroxychloroquine Tablets - FDA prescribing information.. Hydroxychloroquine - Wikipedia. Hydroxychloroquine Oral Tablet 200Mg Drug Medication Dosage.. One Plaquenil tablet contains 200 mg of hydroxychloroquine sulfate, which is equivalent to 155 mg base. Take Plaquenil with a meal or a glass of milk. Malaria. Prophylaxis Adults 400 mg 310 mg base once weekly on the same day of each week starting 2 weeks prior to exposure, and continued for 4 weeks after leaving the endemic area. Hydroxychloroquine oral tablet is available as a brand-name drug and a generic drug. Brand name Plaquenil. Hydroxychloroquine comes only as a tablet you take by mouth. Hydroxychloroquine is used to treat malaria, lupus erythematosus, and rheumatoid arthritis. Hydroxychloroquine is taken in tablet form, with or after food. Your doctor will advise you about the correct dose. Usually you will start on a full dose of 200–400 mg daily, and later your doctor may reduce this. When your condition is very well controlled you may be advised to take hydroxychloroquine only 2–3 times per week.