But if you get a rash or more serious reaction when you take one of these drugs, you may have a sulfa allergy. Sulfa drugs, also called sulfonamides, include antibiotics and other types of drugs. Around 3% of people have some type of reaction to them. P falciparum resistance to chloroquine Can you overdose on hydroxychloroquine 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? Common side effects of Plaquenil include. nausea, vomiting, stomach pain or cramps, loss of appetite, weight loss, diarrhea, dizziness, spinning sensation, headache, Aug 02, 2012 I am one of many who suffer ME symptoms including the post exertional fatigue and pain after taking a fluoroquinolone antibiotic or other closely related drugs. Some of us with Fluoroquinolone Toxicity Syndrome FQT took only one pill, others like myself took multiple courses with delayed reactions. Plaquenil can cause serious side effects when used in high doses for chronic diseases such as RA over the long term. The New Zealand Dermatological Society recommends that to decrease the risk of retina damage, no more than 200mg of Plaquenil should be taken a day, and a dose of 400mg per day should be taken no longer than a few weeks. She’ll decide whether to take you off the drug and how to treat your symptoms. Tell your doctor right away if you think you’re having a reaction to a sulfa drug. Delayed allergic reaction to plaquenil Plaquenil rash or something else? Lupus Forums at The Lupus Site, Fluoroquinolone Antibiotics Cipro, Levaquin, Avelox. Hydroxychloroquine sulfate usp 200 mg Some of the dosage forms listed on this page may not apply to the brand name Plaquenil. For the Consumer. Applies to hydroxychloroquine oral tablet. Along with its needed effects, hydroxychloroquine the active ingredient contained in Plaquenil may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention. Plaquenil Side Effects Common, Severe, Long Term -. Long-Term Side Effects of Plaquenil for Rheumatoid Arthritis. Patient factors influencing dermal filler complications.. Jul 02, 2018 Get emergency medical help if you have signs of an allergic reaction hives, difficult breathing, swelling in your face or throat or a severe skin reaction fever, sore throat, burning eyes, skin pain, red or purple skin rash with blistering and peeling. Call your doctor at once if you have stomach pain upper right side, loss of appetite; Cutaneous reactions to antimalarial agents were commonly observed in the treatment of psoriasis and psoriatic arthritis. Similar reactions are unusual in patients with lupus erythematosus LE. We have observed disease-specific cutaneous reactions to hydroxychloroquine in the treatment of DM. Diagnosis of Drug-induced Myopathies. A drug-induced, or toxic, myopathy is defined as the acute or subacute manifestation of myopathic symptoms such as muscle weakness, myalgia, creatine kinase CK elevation, or myoglobinuria that can occur in patients without muscle disease when they are exposed to certain drugs.