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 mechanism of action ra Plaquenil causes nausea Take this medicine by mouth with a glass of water. Follow the directions on the prescription label. Avoid taking antacids within 4 hours of taking this medicine. It is best to separate these medicines by at least 4 hours. Do not cut, crush or chew this medicine. You can take it with or without food. If it upsets your stomach, take it with food. Before using hydroxychloroquine, tell your doctor or pharmacist of all the drugs you take and if you have any of the following conditions certain heart problems heart failure, slow heartbeat, QT. Aug 29, 2014 Plaquenil, hydroxychloroquine HCQ, is an anti-malarial medication that has been proven to be useful in the treatment of patients with rheumatoid arthritis RA, systemic lupus erythematosus SLE and other inflammatory and autoimmune diseases. Plaquenil is also an antirheumatic medicine and is used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. This medicine is not effective against all strains of malaria. Hydroxychloroquine how do you take it Hydroxychloroquine Oral Route Proper Use - Mayo Clinic, Hydroxychloroquine Oral Uses, Side Effects, Interactions. Hydroxychloroquine monitoring ophthalmologyChloroquine and paludrine in pregnancy 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. If you miss a dose, take it as soon as you remember. Plaquenil What You Need to Know - Kaleidoscope Fighting Lupus. The Risk of Retinal Toxicity with Plaquenil. Taking Plaquenil for Rheumatoid Arthritis. If you are taking Plaquenil to treat an inflammatory condition or malaria, you should be aware of the side effects that may occur to your eyes and vision. Plaquenil hydroxychloroquine is in a class of drugs called disease-modifying anti-rheumatic drugs, which are used to decrease inflammation, pain and joint damage. 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. Does Plaquenil Interact with other Medications? Severe Interactions. These medications are not usually taken together. Consult your healthcare professional e.g. doctor or pharmacist for more in.