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, which transmit the parasites that cause the infection, usually in tropical and subtropical parts of the world. Drug treatment of chloroquine resistant malaria Hydroxychloroquine with methotrexate combination Note This document contains side effect information about hydroxychloroquine. 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. Here are 10 things to keep in mind when using Plaquenil Take it on a regular schedule, meaning at the same time each day. Take Plaquenil EXACTLY as prescribed by your physician. Do not stop taking the medication without first speaking to your doctor. Taking Hydroxychloroquine with food and/or milk can help prevent stomach upset. Side Effects. Drug information provided by IBM Micromedex Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention. For example, it may be combined with an antibiotic to treat chronic Q-fever, which humans usually catch from farm animals or raw milk. Plaquenil is used to treat other types of infections too. Plaquenil teeth Plaquenil Hydroxychloroquine - Side Effects, Dosage., Plaquenil What You Need to Know - Kaleidoscope Fighting Lupus Can i take ginseng with plaquenilPlaquenil retinopathy visual fieldsChloroquine diphosphate useHydroxychloroquine renal toxicityCan plaquenil cause muscle weakness Plaquenil is prescribed for the treatment or prevention of malaria. It is also prescribed for the treatment of rheumatoid arthritis, lupus, and the side effects of lupus such as hair loss, joint pain, and more. Side effects, drug interactions, pregnancy safety information, and dosage information should be reviewed prior to taking this medication. Hydroxychloroquine Plaquenil Side Effects & Dosage for.. Hydroxychloroquine Oral Route Side Effects - Mayo Clinic. Oral Problems and Concerns with People and Lupus. Everything.. Consumer information about the medication HYDROXYCHLOROQUINE - ORAL Plaquenil, includes side effects, drug interactions, recommended dosages, and storage information. Read more about the prescription drug HYDROXYCHLOROQUINE - ORAL. A person with lupus, depending on the type of disease, generalized or the localized form, and the type of medication they are taking, may face a variety of different dental problems. X MORE EFFECTIVE. A recent study published in the American Journal of Medicine found that Plaque HD with Targetol Technology identifies and removes plaque twice as effectively as other leading toothpastes.