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. Combination of sulfasalazine hydroxychloroquine and leflunomide for ra Hera study hydroxychloroquine How to use Chloroquine Phosphate. Take this medication by mouth, usually with food to prevent stomach upset, exactly as directed by your doctor. Daily or weekly dosing, dosage amount, and length. Avoid taking an antacid or Kaopectate kaolin-pectin within 4 hours before or after you take chloroquine. Some antacids can make it harder for your body to absorb chloroquine. If you also take an antibiotic called ampicillin, avoid taking it within 2 hours before or 2 hours after you take chloroquine. Chloroquine can make ampicillin much less. 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. The weekly dosage for adults is 300mg base 500mg salt. 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. How to take chloroquine Aralen Chloroquine Uses, Dosage, Side Effects., Chloroquine Uses, Side Effects, Dosage & Interactions Plaquenil skin rash picturesChloroquine hydrochloride dosePlaquenil cognitive side effectsHydroxychloroquine combination Hydroxychloroquine Plaquenil is considered a disease-modifying anti-rheumatic drug DMARD. It can decrease the pain and swelling of arthritis. It may prevent joint damage and reduce the risk of long-term disability. Hydroxychloroquine is in a class of medications that was first used to prevent and treat malaria. Hydroxychloroquine Plaquenil. Medicines for the Prevention of Malaria While Traveling.. Coronavirus vaccines, treatments and chloroquine.. If you are also taking kaolin or antacids, take them at least 4 hours before or after using chloroquine. If you are also taking ampicillin, take it at least 2 hours before or after using this medicine. Dosing. The dose of this medicine will be different for different patients. Follow your doctor's orders or the directions on the label. Tell your doctor if you have ever had vision changes while taking hydroxychloroquine, chloroquine Aralen, or primaquine. tell your doctor if you are pregnant, plan to become pregnant, or are breast-feeding. If you become pregnant while taking hydroxychloroquine, call your doctor. But take this advice Don’t ignore changes in vision. While side effects of corticosteroids are usually to blame, there is also the possibility of ocular damage associated with long-term use of the antimalarial drugs hydroxychloroquine brand name Plaquenil® and chloroquine.