Hydroxychloroquine is available as the brand-name drug Plaquenil. Generic drugs usually cost less than the brand-name version. Hydroxychloroquine may be used as part of a combination therapy. How much is to much plaquenil Plaquenil missed period Since hydroxychloroquine may increase the effects of antidiabetic drugs or insulin, a decrease in the doses of these drugs may be required while taking hydroxychloroquine. In literature, cases of human pregnancy while taking hydroxychloroquine have occurred and no increase in the rate of birth defects has been noted. Fortunately, the problems seen by people taking this medication are usually very mild. Serious side effects are rare. Overall, most people who have any noticeable side effects from hydroxychloroquine experience diarrhea or nausea. These usually get better after the person adjusts to the medication, and taking the drug with food can help, as well. 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. Hydroxychloroquine is used to treat lupus erythematosus and rheumatoid arthritis. It isn’t fully understood how this drug works to treat lupus erythematosus or rheumatoid arthritis. That means you may need to take it with other drugs. It treats malaria by killing the parasites that cause the disease. Taking too much hydroxychloroquine Plaquenil Hydroxychloroquine Uses, Dosage, Side Effects., RA and Hydroxychloroquine How Effective is it for. Chloroquine treatment for vivax malaria Important considerations for taking hydroxychloroquine General. You can cut or crush this oral tablet. Take each tablet with a meal or a glass of milk. Storage. Store this medication at room temperature up to 86°F 30°C. Refills. A prescription for this medication is refillable. Travel. Always. Hydroxychloroquine Side Effects, Dosage, Uses, and More. Plaquenil Uses, Dosage & Side Effects -. Hydroxychloroquine Plaquenil. Hydroxychloroquine received an overall rating of 7 out of 10 stars from 368 reviews. See what others have said about Hydroxychloroquine, including the effectiveness, ease of use and side effects. 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 lupus, rheumatoid arthritis, and others. Malaria is spread by mosquitoes. The recommended initial dosage of hydroxychloroquine Plaquenil for the treatment of lupus erythematosus is 400 mg once or twice daily. The recommended maintenance dose range of hydroxychloroquine Plaquenil for the treatment of lupus erythematosus is 200 to 400 mg daily.