It does not work against certain types of malaria (chloroquine-resistant). The United States Center for Disease Control provides updated guidelines and travel recommendations for the prevention and treatment of malaria in different parts of the world. Plaquenil polymyalgia rheumatica Lyme combination azithromycin doxycycline hydroxychloroquine What is chloroquine phosphate Hydroxychloroquine nsaid cream Before using Hydroxychloroquine Sulfate Tablet, inform your doctor about your current list of medications, over the counter products e.g. vitamins, herbal supplements, etc. allergies, pre-existing diseases, and current health conditions e.g. pregnancy, upcoming surgery, etc.health conditions may make you more susceptible to the side-effects of the drug. Precautions Dermatologic reactions to PLAQUENIL may occur and, therefore, proper care should be exercised when it is administered to any patient receiving a drug with a significant tendency to. Hydroxychloroquine comes as a tablet to take by mouth. For prevention of malaria in adults, two tablets are usually taken once a week on exactly the same day of each week. The first dose is taken 1 to 2 weeks before traveling to an area where malaria is common, and then doses are continued for 8 weeks after exposure. This medication is also used, usually with other medications, to treat certain auto-immune diseases (lupus, rheumatoid arthritis) when other medications have not worked or cannot be used. Discuss the most recent information with your doctor before traveling to areas where malaria occurs. Hydroxychloroquine precautions Precautions and Warnings With Hydroxychloroquine, PLAQUENIL® - Food and Drug Administration Chloroquine resistance to antimalarail drugs Final Thoughts on Plaquenil Warnings and Precautions. There are a number of situations in which Plaquenil should not be taken, along with several precautions and warnings people should be aware of before starting the medication. However, it is possible that not all of the warnings or precautions with Plaquenil were discussed in this article. When to Avoid Plaquenil. Hydroxychloroquine MedlinePlus Drug Information. Hydroxychloroquine - Side Effects, Precautions and.. Feb 19, 2020 Rheumatoid Arthritis. The action of hydroxychloroquine is cumulative and may require weeks to months to achieve the maximum therapeutic effect see CLINICAL PHARMACOLOGY. Initial adult dosage 400 mg to 600 mg 310 to 465 mg base daily, administered as a single daily dose or in two divided doses. Hydroxychloroquine Sulfate Dosage & Precautions Before taking hydroxychloroquine, tell your doctor or pharmacist if you are allergic to it; or to other aminoquinolines e.g. chloroquine; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Plaquenil. Uses. Hydroxychloroquine is used to prevent or treat malaria infections caused by mosquito bites. It does not work against certain types of. Side Effects. Precautions. Interactions.