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. Plaquenil for scabbies Target of chloroquine Hydroxychloroquine breastfeeding You take plaquenil twice a day, approximately 12 hours apart. The most common side effect is mild nausea and occasional stomach cramps. You can take it with food if it upsets your stomach. You should also have a complete eye exam before starting this medication and then every 6 months. In very rare cases, plaquenil can affect the eyes. However, dose is usually not more than 800 mg for the first dose and not more than 400 mg for the next doses. For treatment of arthritis Adults—At first, 400 to 600 milligrams mg taken as a single dose or in two divided doses once a day. Then, 200 to 400 mg taken as a single dose or in two divided doses once a day. To treat lupus, one or two tablets are usually taken once or twice a day. Dosing is usually higher in the first few weeks, then lowered for longer maintenance treatment. 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. Taking plaquenil twice a day Plaquenil Hydroxychloroquine Uses, Dosage, Side Effects., Hydroxychloroquine Oral Route Proper Use - Mayo Clinic Hydroxychloroquine is used for whatHydroxychloroquine sulfate 200 mg pilHow frequent is vision loss from plaquenilChloroquine and proguanil boots Apr 10, 2019 Take Plaquenil exactly as prescribed by your doctor. Follow all directions on your prescription label. Do not take this medicine in larger or smaller amounts or for longer than recommended. Plaquenil is sometimes given only once per week. Choose the same day each week to take this medicine if you are on a weekly dosing schedule. Take Plaquenil with a meal or a glass of milk. Plaquenil Uses, Dosage & Side Effects -. Plaquenil Hydroxychloroquine - Side Effects, Dosage.. Hydroxychloroquine Uses, Dosage & Side Effects -. January 18, 2019 at pm After taking plaquenil, 200 mg twice a day, for 18 years, I developed severe retina damage. I saw a ring of lights, told my eye doc whom I saw every 6 months, and he said he didn’t see anything during the retina exam. A year later, after moving to another state, I saw another eye doc for my checkup. The normal dose of Plaquenil is 1 tablet a day 200mg/day. Some doctors recommend 2 a day 400mg/day but we find that 1 a day suits most people - the dose can always be increased for a flare. One of the attractions of this medication is its long 'half-life' - it stays in the system for days & weeks. Generally, hydroxychloroquine is given in 200 mg or 400 mg doses, once per day. Higher doses can sometimes be used, but only in adults and not for all cases. Some people tolerate this medication much better than other people, so it is important that individuals who are considering taking hydroxychloroquine talk with their doctor about the lowest necessary dose to reduce or eliminate their symptoms.