Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria. Plaquenil laser hair removal Hydroxychloroquine accutane redness Plaquenil manufacturer change side effects Hydroxychloroquine increases the QT interval and should not be administered with other drugs known to prolong the QT interval. Ventricular arrhythmias and torsade de pointes have been reported with the use of hydroxychloroquine. Potential QT prolongation has been reported in limited case reports with metronidazole. 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. Common Caffeine and Drug Interactions. The drug caffeine can sometimes have moderate to severe interactions with other medications a person may be taking. According to one study, almost 70% of the population of a County in New York was prescribed at least one prescription drug and gives a clue to what is likely happening elsewhere in the USA. Taking hydroxychloroquine long-term or at high doses may cause irreversible damage to the retina of your eye. Hydroxychloroquine is also an antirheumatic medicine and is used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. Plaquenil and coffee Common and Rare Side Effects for Plaquenil Oral, Hydroxychloroquine Plaquenil thread COVID19 Life extension chloroquineFacts on chloroquineChloroquine how does it work WebMD provides information about which foods to avoid while taking Plaquenil Oral. Foods to Avoid When Taking Plaquenil Oral. Common Caffeine and Drug Interactions. Hydroxychloroquine Side Effects, Dosage, Uses, and More. 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. Plaquenil is the brand name for the prescription drug hydroxychloroquine. It's used to treat and prevent malaria infection, and to reduce symptoms and progression of autoimmune diseases such as. If you have rheumatoid arthritis, or are at risk of getting it, you may have wondered whether your morning cup or two or three of coffee has any impact on the disease. Coffee has gotten such good press lately, with java being touted as a boon to mental health, cognitive performance and athletic endurance, to name a few.