Hydroxychloroquine is available as the brand-name drug Plaquenil. Generic drugs usually cost less than the brand-name version. Hydroxychloroquine may be used as part of a combination therapy. How long does plaquenil take to work for hives Plaquenil brand vs generic Plaquenil and being in the sun Both adults and children should take one dose of chloroquine per week starting at least 1 week before. traveling to the area where malaria transmission occurs. They should take one dose per week while there, and for 4 consecutive weeks after leaving. To prevent malaria, take chloroquine once weekly on the same day each week, or as directed by your doctor. Start this medication usually 1 to 2 weeks before you enter the malarious area, continue to take it weekly while in the area, and weekly for 4 to 8 weeks after leaving the area, or as directed by your doctor. Typical starting dose is 800 mg. This is followed by 400 mg three times 6 hours after the first dose, 24 hours after the first dose, and 48 hours after the first dose. Hydroxychloroquine is used to treat lupus erythematosus and rheumatoid arthritis. It isn’t fully understood how this drug works to treat lupus erythematosus or rheumatoid arthritis. That means you may need to take it with other drugs. It treats malaria by killing the parasites that cause the disease. How long do you take chloroquine Hydroxychloroquine MedlinePlus Drug Information, Chloroquine Oral Uses, Side Effects, Interactions, Pictures. Sjorens syndrome plaquenilPlaquenil chplHydroxychloroquine lupus mechanism But how long past that date can you keep using your over-the-counter and prescription drugs? And is it safe to take expired medicine? INSIDER talked to medical experts to find out how long you can keep using some common medications after opening them. In most cases, the expiration date on medication doesn't mean what you think it does How long can you take medicine after the expiration date.. Hydroxychloroquine Side Effects, Dosage, Uses, and More. Malaria - Antimalarials - NHS. Nov 25, 2019 To treat malaria Chloroquine is usually given for 3 days, starting with one high dose followed by a smaller dose during the next 2 days in a row. To treat amebiasis Chloroquine is given in a high starting dose for 2 days followed by a smaller dose for 2 to 3 weeks. Apr 02, 2019 This represents a total dose of 2.5 g chloroquine phosphate or 1.5 g base in three days. The dosage for adults of low body weight and for infants and children should be determined as follows First dose 10 mg base per kg but not exceeding a single dose of 600 mg base. Education and information regarding choosing a drug to prevent malaria, including a list of all available drugs and reasons for taking or not taking a certain drug.