Although not all of these side effects may occur, if they do occur they may need medical attention. Check with your doctor immediately if any of the following side effects occur while taking chloroquine: Incidence not known Some side effects of chloroquine may occur that usually do not need medical attention. Hydroxychloroquine overdose toxicokinetics and management Does plaquenil prevent malaria The usefulness of hypokalemia as an indicator in the evaluation of chloroquine toxicity was studied in a retrospective series of 191 acute chloroquine poisonings. Results indicated that the risk of severe poisoning and death are proportional to the degree of hypokalemia. Chloroquine is very rapidly and completely absorbed after ingestion. Toxic doses of chloroquine can be fatal. As little as 1 g may be fatal in children. Toxic symptoms can occur within minutes. Chloroquine is an aminoquinoline used for the prevention and therapy of malaria. It is also effective in extraintestinal amebiasis and as an antiinflammatory agent for therapy of rheumatoid arthritis and lupus erythematosus. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. These side effects may go away during treatment as your body adjusts to the medicine. Chloroquine phosphate toxic Aquarium Fish Chloroquine A "New" Drug for Treating Fish., CHLOROQUINE PHOSPHATE TABLETS, USP 250 MG and 500 MG Fever from plaquenilTbe chloroquine gel Chloroquine phosphate may cause an upset stomach. Take chloroquine phosphate with food. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Use chloroquine phosphate exactly as directed. Do not use more or less of it or use it more often than prescribed by your doctor. Chloroquine MedlinePlus Drug Information. Chloroquine - LiverTox - NCBI Bookshelf. What is chloroquine? Trump, Elon Musk tout possible.. Monitoring Hydroxychloroquine is the preferred antimalarial because it is less toxic to the eye. Chloroquine is sometimes tolerated by patients who do not tolerate hydroxychloroquine. Ophthalmologic retinal and visual field testing should be performed at baseline or soon after drug initiation and then at 6 -12 month intervals. CHLOROQUINE sulfate or phosphate oral Given that resistance of P. falciparum to chloroquine is widespread, this drug must not be used for the treatment of falciparum malaria in Africa, South America, Asia and Oceania. Chloroquine is a 4-aminoquinoline with antimalarial, anti-inflammatory, and potential chemosensitization and radiosensitization activities. Although the mechanism is not well understood, chloroquine is shown to inhibit the parasitic enzyme heme polymerase that converts the toxic heme into non-toxic hemazoin.