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 eye screening guidelines Plaquenil and liver failure Find patient medical information for Hydroxychloroquine Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings. Consumer information about the medication HYDROXYCHLOROQUINE - ORAL Plaquenil, includes side effects, drug interactions, recommended dosages, and storage information. Read more about the prescription drug HYDROXYCHLOROQUINE - ORAL. Nov 09, 2018 Hydroxychloroquine Side Effects Get emergency medical help if you have signs of an allergic reaction hives; difficulty breathing; swelling of your face, lips, tongue, or throat. 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. Hydroxychloroquine cream side effects Hydroquinone Cream - FDA prescribing information, side., HYDROXYCHLOROQUINE - ORAL Plaquenil side effects, medical. Plaquenil price ukPlaquenil doses lupus Hydroquinone Cream Dosage and Administration. HYDROQUINONE USP, 4% SKIN BLEACHING CREAM should be applied to affected areas and rubbed in well twice daily, in the morning and before bedtime, or as directed by a physician. If no improvement is seen after 2 months of treatment, use of this product should be discontinued. Hydroquinone Cream - FDA prescribing information, side effects and uses. Hydroxychloroquine - Side Effects, Dosage, Interactions.. Common Hydroxychloroquine sulfate side effects a study from.. Some side effects of hydroxychloroquine may occur that usually do not need medical attention. 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. Long-Term Side Effects of Plaquenil for Rheumatoid Arthritis. Plaquenil is the brand name of hydroxychloroquine, a drug used to prevent or treat malaria. Plaquenil is also used for long-term treatment of autoimmune diseases such as rheumatoid arthritis RA and systemic lupus erythmatosis. One of the most serious side effects is a toxicity in the eye generally with chronic use. People taking 400 mg of hydroxychloroquine or less per day generally have a negligible risk of macular toxicity, whereas the risk begins to go up when a person takes the medication over 5 years or has a cumulative dose of more than 1000 grams.