Take this medicine with meals or milk to lessen stomach upset, unless otherwise directed by your doctor. Your infection may not clear up if you stop using the medicine too soon. Plaquenil package insert Can plaquenil cause high blood pressure Chloroquine metabolism One PLAQUENIL tablet contains 200 mg of hydroxychloroquine sulfate, which is equivalent to 155 mg base. Take PLAQUENIL with a meal or a glass of milk. Malaria Prophylaxis. Adults. 400 mg 310 mg base once weekly on the same day of each week starting 2 weeks prior to exposure, and continued for 4 weeks after leaving the endemic area. Hydroxychloroquine HCQ, sold under the brand name Plaquenil among others, is a medication used for the prevention and treatment of certain types of malaria. Specifically it is used for chloroquine -sensitive malaria. Other uses include treatment of rheumatoid arthritis, lupus, and porphyria cutanea tarda. Hydroxychloroquine is taken in tablet form, with or after food. Your doctor will advise you about the correct dose. Usually you will start on a full dose of 200–400 mg daily, and later your doctor may reduce this. When your condition is very well controlled you may be advised to take hydroxychloroquine only 2–3 times per week. The dose of this medicine will be different for different patients. For patients taking hydroxychloroquine to prevent malaria: If you are also taking kaolin or antacids, take them at least 4 hours before or after using hydroxychloroquine. What is hydroxychloroquine taken for Hydroxychloroquine Uses, Dosage & Side Effects -, Hydroxychloroquine - Wikipedia Can i stop taking plaquenilWhat happens if you double doses of plaquenil Hydroxychloroquine may cause some people to be agitated, irritable, or display other abnormal behaviors. It may also cause some people to have suicidal thoughts and tendencies, or to become more depressed. If you or your caregiver notice any of these side effects, tell your doctor right away. This medicine may cause hypoglycemia low blood sugar. Hydroxychloroquine Oral Route Precautions - Mayo Clinic. Hydroxychloroquine Side-effects, uses, time to work. Plaquenil, Plaquenil Sulfate, Quineprox hydroxychloroquine Uses, Side.. Hydroxychloroquine can be taken in a single or divided dose to control gastrointestinal side effects. It can also be taken with a glass of milk or meal to minimize nausea. 4,5. When you take this medication, your symptoms may begin to improve in 1 to 2 months. However, it may take up to 6 months to a year before the drug achieves full effect. 3,6 Plaquenil hydroxychloroquine is a medication most known for its original purpose of treating or preventing malaria, a disease caused by parasites that enter the body through the bite of a mosquito. 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.