Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria. Chloroquine thailand malaria Turmeric and plaquenil Hydroxychloroquine and methotrexate interaction Hydroxychloroquine sulfate more likely to get sick Hydroxychloroquine is a quinoline medicine 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. Chloroquine is a 9-aminoquinoline known since 1934. Apart from its well-known antimalarial effects, the drug has interesting biochemical properties that might be applied against some viral infections. Chloroquine exerts direct antiviral effects, inhibiting pH-dependent steps of the replication of several viruses including members of the flaviviruses, retroviruses, and coronaviruses. Its best. Before using Plaquenil, tell your doctor if you are allergic to any drugs, or if you have psoriasis, porphyria, liver disease, alcoholism, or glucose-6-phosphate dehydrogenase G-6-PD deficiency. Take Plaquenil for the full prescribed length of time for malaria. Your symptoms may improve before the infection is completely cleared. Taking hydroxychloroquine long-term or at high doses may cause irreversible damage to the retina of your eye. Hydroxychloroquine is also an antirheumatic medicine and is used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. Plaquenil drug action Side Effects of Plaquenil Hydroxychloroquine, Warnings, Uses, Effects of chloroquine on viral infections an old drug. Plaquenil emotional side effects If you are also taking a certain drug for diarrhea kaolin or taking antacids such as magnesium/aluminum hydroxide, take hydroxychloroquine at least 4 hours before or after these products. Plaquenil Oral Uses, Side Effects, Interactions, Pictures, Warnings.. Plaquenil Uses, Dosage & Side Effects -. Hydroxychloroquine decreases Th17-related cytokines in.. Mechanism of action of hydroxychloroquine as an antirheumatic drug. Fox RI1. Author information 1Department of Rheumatology, Scripps Clinic and Research Foundation, La Jolla, CA 92037. The antimalarial agents chloroquine and hydroxychloroquine have been used widely for the treatment of rheumatoid arthritis and systemic lupus erythematosus. Mechanism of action. Drugs that prolong QT interval and other arrhythmogenic drugs PLAQUENIL prolongs the QT interval and should not be administered with other drugs that have the potential to induce cardiac arrhythmias. Also, there may be an increased risk of inducing ventricular arrhythmias if PLAQUENIL is used concomitantly with other. MECHANISM OF ACTION. Plaquenil increases the pH of lysosomes and impairs complement-dependent antigen-antibody reactions. It also inhibits the chemotaxis of eosinophils and locomotion of neutrophils. SUMMARY OF EVIDENCE in development Ponticelli C et al. 2017 “Hydroxychloroquine in systemic lupus erythematosus SLE” Expert Opin Drug Saf.