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 bladder infections Plaquenil eye problems reversible Hydroxychloroquine program Dosage for Plaquenil. The adult dose of Plaquenil to suppress malaria is 400 mg on the same day each week. The pediatric weekly suppressive dosage is 5 mg/kg of body weight. The adult dose of Plaquenil to treat an acute attack of malaria is an initial dose of 800 mg followed by 400 mg in six to eight hours and 400 mg for two more days. Low blood cell counts have happened with hydroxychloroquine. If blood cell counts get very low, this can lead to bleeding problems, infections, or anemia. Call your doctor right away if you have signs of infection like fever, chills, or sore throat; any unexplained bruising or bleeding; or if you feel very tired or weak. Ischial bursitis is inflammation of the bursa that separates the gluteus maximus muscle of the buttocks from the underlying bony prominence of the bone that we sit on, the ischial tuberosity. Ischial bursitis is a form of bursitis that is usually caused by prolonged sitting on hard surfaces that press against the bones of the bottom or mid. 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 bursitis What is trochanteric bursitis?, Hydroxychloroquine Indications, Side Effects, Warnings. Plaquenil constipationHydroxychloroquine for fibromyalgiaPlaquenil helps spasms 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 -. Bursitis Treatment, Symptoms & Causes. Treating Lupus with Anti-Malarial Drugs Johns Hopkins Lupus.. Hydroxychloroquine HCQ, sold under the brand name Plaquenil among others, is a medication used for the prevention and treatment of certain types of malaria. Specifically it is used for chloroquine-sensitive malaria. Other uses include treatment of rheumatoid arthritis, lupus, and porphyria cutanea tarda. Plaquenil and Tendonitis - from FDA reports Summary Tendonitis is found among people who take Plaquenil, especially for people who are female, 60+ old, have been taking the drug for 1 - 2 years, also take medication Humira, and have High blood pressure. Bursitis inflammation of a bursa, typically one in the knee, elbow, or shoulder 29. I had hip bursitis and hip tendonitis. I went to a sports medicine doctor. She X-Rayed the knees and the hips. I had very mild OA of the knees and hips. But she said I had both bursitis and tendonitis and that was causing most of my problems. She said the injections will relieve the pain for awhile but PT would be more of a long term fix.