Although not all of these side effects may occur, if they do occur they may need medical attention. Check with your doctor immediately if any of the following side effects occur while taking hydroxychloroquine: Incidence not known Some side effects of hydroxychloroquine may occur that usually do not need medical attention. Plaquenil how long does it take to work Chloroquine myopathy Plaquenil toxicity visual field What can you expect when you stop taking plaquenil Feb 19, 2020 Hydroxychloroquine sulfate is a colorless crystalline solid, soluble in water to at least 20 percent; chemically the drug is 2-4-7-Chloro-4-quinolylaminopentylethylamino ethanol sulfate 11. PLAQUENIL hydroxychloroquine sulfate tablets contain 200 mg hydroxychloroquine sulfate, equivalent to 155 mg base, and are for oral administration. Hydroxychloroquine is a disease-modifying anti-rheumatic drug DMARDregulates the activity of the immune system, which may be overactive in some conditions. Hydroxychloroquine can modify the underlying disease process, rather than simply treating the symptoms. If you are also taking a certain drug for diarrhea kaolin or taking antacids such as magnesium/aluminum hydroxide, take hydroxychloroquine at least 4 hours before or after these products. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. These side effects may go away during treatment as your body adjusts to the medicine. Why is the drug hydroxychloroquine Hydroxychloroquine Plaquenil Side Effects & Dosage for., Hydroxychloroquine Side-effects, uses, time to work Myasthenia gravis chloroquinePlaquenil blurry vision reviews The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is. Conditions that Hydroxychloroquine Oral Treats. Plaquenil Oral Uses, Side Effects, Interactions.. Hydroxychloroquine Plaquenil -. Our Plaquenil hydroxychloroquine Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication. This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. I'm on Plaquenil for leukocytoclastic vasculitis among other autoimmune problems. Is this why Plaquenil is thought to be effective in treating this? I keep hearing about the vascular problems with the virus and autoimmune drug intervention, but I'm confused about the intent behind the medicine. 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.