These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Hydroxychloroquine not working Eye toxicity hydroxychloroquine Hydroxychloroquine is in the antimalarial and 4-aminoquinoline families of medication. Hydroxychloroquine was approved for medical use in the United States in 1955. It is on the World Health Organization's List of Essential Medicines, the safest and most effective medicines needed in a health system. How to use Hydroxychloroquine SULFATE. 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 is also based on weight. 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. If you notice any other effects, check with your healthcare professional. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them: Other side effects not listed may also occur in some patients. Hydroxychloroquine itp Dapsone, Danazol, Hydroxychloroquine Are Potential Second., Hydroxychloroquine Oral Uses, Side Effects, Interactions. How does the body metabolize plaquenilHydroxychloroquine and lupus mechanism of actionHydroxychloroquine and breastfeedingChloroquine dosing prophylaxis Plaquenil hydroxychloroquine belongs to a group of medicines called quinolines. Plaquenil is used to treat or prevent malaria, a disease caused by parasites that enter the body through the bite of a mosquito. Malaria is common in areas such as Africa, South America, and Southern Asia. Plaquenil Uses, Dosage & Side Effects -. Hydroxychloroquine Side Effects, Dosage, Uses, and More. Side Effects of Plaquenil Hydroxychloroquine, Warnings, Uses. Apr 04, 2013 Immune thrombocytopenic purpura ITP is thought to be an autoimmune disorder mediated by autoantibodies with no known etiology, and the incidence is approximately 2.5 per 100,000 persons per year. The goal of treatment is to keep the platelet count above 3×10 4 /mm 3 to prevent major internal organ bleeding. Immune thrombocytopenic purpura ITP is thought to be an autoimmune disorder mediated by autoantibodies with no known etiology, and the incidence is approximately 2.5 per 100,000 persons per year. The goal of treatment is to keep the platelet count above 3×10 4 /mm 3 to prevent major internal organ bleeding. The amount of hydroxychloroquine excreted in the urine as unchanged drug ranges from 6% to 60% median 23%, and 17% is excreted in the urine as metabolized drug. Twenty-four percent to 25% of hydroxychloroquine is excreted in feces, 5% is sloughed off in skin, and 45% is stored in lean tissues.