Malaria: Treatment of uncomplicated malaria caused by susceptible strains of Plasmodium vivax, Plasmodium malariae, Plasmodium ovale, and Plasmodium falciparum; prophylaxis of malaria in geographic areas where chloroquine resistance is not reported. Limitations of use: Hydroxychloroquine is not effective against chloroquine- or hydroxychloroquine-resistant malaria strains of Plasmodium species; not recommended for treatment of complicated malaria, malaria prophylaxis in regions with chloroquine resistance, or treatment when the Plasmodium species has not been identified; hydroxychloroquine does not prevent relapses of P. ovale infections because it is not effective against the hypnozoite forms of these parasites. Hydroxychloroquine sulfate and weight gain What class of drugs is plaquenil Diphenhydramine interaction with plaquenil The Quinism Foundation Warns of Dangers from Use of Antimalarial Quinolines Against COVID‑19 Use of Chloroquine, Hydroxychloroquine, Mefloquine, Quinine, and Related Quinoline Drugs Risks Sudden and Lasting Neuropsychiatric Effects from Idiosyncratic Neurotoxicity Hydroxychloroquine 1 is an antimalarial drug developed for both treatment and prevention of the disease in response to the widespread malaria resistance to chloroquine 2, Figure 1. Figure 1 Commercially available antimalarial drugs. Hydroxychloroquine and chloroquine are antimalarial drugs commonly used for the treatment of rheumatic diseases. Multiple mechanisms might explain the efficacy and adverse effects of these drugs. Data from case reports and retrospective and open-label studies support the use of hydroxychloroquine in the treatment of cutaneous manifestations of dermatomyositis . Rheumatoid arthritis: Treatment of acute and chronic rheumatoid arthritis in adults. Antimalarial drugs hydroxychloroquine Treating Lupus with Anti-Malarial Drugs Johns Hopkins., High-yielding continuous-flow synthesis of antimalarial drug. Plaquenil baseline testingIs hydroxychloroquine an opiateGray nails and plaquenil Hydroxychloroquine is a member of the antimalarial quinolines drug class and is commonly used for Dermatomyositis, Lyme Disease - Arthritis, Malaria, and others. Brand names for hydroxychloroquine include Plaquenil. This hydroxychloroquine price guide is based on using the discount card which is accepted at most U. S. pharmacies. Hydroxychloroquine Prices, Coupons & Patient. -. Mechanisms of action of hydroxychloroquine and chloroquine.. Hydroxychloroquine Plaquenil Side Effects & Dosage for.. Hydroxychloroquine, an antimalarial drug, is traditionally used in the treatment of SLE. Its effectiveness in treating APS has been previously questioned. In vitro and in vivo studies showed a beneficial effect of hydroxychloroquine on thrombosis 121–124. Hydroxychloroquine is in a class of drugs called antimalarials. It is used to prevent and treat acute attacks of malaria. It is also used to treat discoid or systemic lupus erythematosus and rheumatoid arthritis in patients whose symptoms have not improved with other treatments. Hydroxychloroquine is in the antimalarial and 4-aminoquinoline families of medication. Hydroxychloroquine was approved for medical use in the United States in 1955. It is on the World Health Organization's List of Essential Medicines, the safest and most effective medicines needed in a health system.