According to legend it was first brought to Europe by a Countess who had been treated with it in Peru in the 1600s. In 1820, two French chemists isolated quinine from the cinchona bark and quinine became a treatment of reference for intermittent fever throughout the world. Quinine remains an important and effective treatment for malaria today, despite sporadic observations of quinine resistance. Cipro and plaquenil Using chloroquine to treat ich Plaquenil red spots on chest Cost of antimalarial drugs chloroquine A tablet containing a fixed dose of 250 mg of atovaquone and 100 mg of proguanil hydrochloride, taken orally, has been highly effective and safe in a 3-day regimen for treating mild to moderate attacks of chloroquine- and multidrug-resistant falciparum malaria. Chloroquine Aralen is used for preventing and treating malaria and amebiasis, an infection of the intestines caused by a parasite. Chloroquine Aralen - Side Effects, Dosage, Interactions. Chloroquine is used to treat and to prevent malaria. Chloroquine is also used to treat amebiasis infection caused by amoebae. Chloroquine may also be used for purposes not listed in this medication guide. These compounds belonged to a new class of antimalarials, the four-amino quinolines. Research by German scientists to discover a substitute for quinine led to the synthesis in 1934 of Resochin (chloroquine) and Sontochin (3-methyl-chloroquine). Chloroquine atovaquone Compare Malarone vs Chloroquine -, Chloroquine Aralen - Side Effects, Dosage, Interactions - Drugs Plaquenil lyme treatmentOct of plaquenil toxicity No atovaquone-proguanil recipients discontinued treatment because of an adverse event, whereas 2 chloroquine-proguanil recipients discontinued the regimen during the posttravel period because of drug-related gastrointestinal events mild-to-moderate nausea, abdominal pain, and diarrhea in one subject and severe nausea with mild abdominal pain in the other. Atovaquone-Proguanil versus Chloroquine-Proguanil for.. Chloroquine Uses, Side Effects & Warnings -. Malarone Atovaquone and Proguanil Hcl Uses, Dosage, Side.. Chloroquine phosphate is used occasionally to decrease the symptoms of rheumatoid arthritis and to treat systemic and discoid lupus erythematosus, scleroderma, pemphigus, lichen planus, polymyositis, sarcoidosis, and porphyria cutanea tarda. Talk to your doctor about the possible risks of using this drug for your condition. Atovaquone is effective against chloroquine resistant P. falciparum, but is associated with a high rate of resistance, for which reason it is usually given in combination with other agents, most typically with proguanil. Atovaquone was approved for use in the United States in 1992 and the combination with proguanil in 2000. Find patient medical information for Atovaquone-Proguanil Oral on WebMD including its uses, side effects and safety, interactions, pictures, warnings and user ratings.