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. Baseline testing for plaquenil Chloroquine and neuropathy Plaquenil and diarrhea and weight loss Can plaquenil stop working Hydroxychloroquine induced myopathy is thought to be underestimated because of slightly elevated to normal CK levels 10. Physicians should be aware of this cause of myopathy because hydroxychloroquine is widely used around the world and symptoms usually recover only after cessation of the drug. Dose related myopathy Daily dosages of chloroquine of 500 mg given for 1 year or longer Drug features At extracellular pH drugs are poorly ionized & penetrate membranes Title = "Hydroxychloroquine-induced toxic myopathy causing respiratory failure", abstract = "Chloroquine and hydroxychloroquine HCQ are commonly prescribed antimalarial agents used for a variety of systemic diseases. 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 myopathy A Rare but Reversible Cause of Myopathy., TOXIC MYOPATHIES Chloroquine translation Summary We study how severe was Myopathy, when it was recovered, drug effectiveness, race, and more among people who take Plaquenil. This study is created by eHealthMe based on reports of 1,993 people who have side effects when taking Plaquenil from sources other than FDA, and is updated regularly. Myopathy in Plaquenil how severe and when it was.. Hydroxychloroquine-induced toxic myopathy causing.. Hydroxychloroquine-Induced Toxic Myopathy Causing.. What Is Plaquenil? Plaquenil hydroxychloroquine is an antimalarial medication used to treat or prevent malaria, a disease caused by parasites, which enter the body through the bite of a mosquito. Plaquenil is also used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. Plaquenil is available in generic form. What Are Side Effects of Plaquenil? Hydroxychloroquine is considered safer than chloroquine during pregnancy and lactation. Hydroxychloroquine is rapidly absorbed from the gastrointestinal tract, and steady-state concentrations are reached after 4–6 weeks; 45% of hydroxychloroquine binds to plasma proteins that are deposited in tissues such as the liver, spleen, kidney, and lung. 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.