Malaria is common in areas such as Africa, South America, and Southern Asia. This medicine is not effective against all strains of malaria. Hydroxychloroquine rare side effects Hydroxychloroquine can suppress appetite It is available in 200 mg tablets of hydroxychloroquine phosphate each containing 155 mg of hydroxychloroquine. 1 Although commonly used in the treatment of rheumatologic diseases, it is a rare source of overdose in the United States. However, life-threatening symptoms can occur within an hour of ingestion. Macular toxicity is related to the total cumulative dose rather than the daily dose. Regular eye screening, even in the absence of visual symptoms, is recommended to begin when either of these risk factors occurs. Toxicity from hydroxychloroquine may be seen in two distinct areas of the eye the cornea and the macula. 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. This medicine is not effective against all strains of malaria. Hydroxychloroquine may also be used for purposes not listed in this medication guide. Hydroxychloroquine is also used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. Hydroxychloroquine sulphate overdose Hydroxychloroquine MedlinePlus Drug Information, Hydroxychloroquine - Wikipedia Financial assistance for hydroxychloroquinePlaquenil and melatoninPlaquenil immunosuppressChloroquine proguanil priceLichen planopilaris treatment hydroxychloroquine Hydroxychloroquine overdose must be treated quickly. You may be told to induce vomiting right away at home, before transport to an emergency room. Ask the poison control center how to induce. Hydroxychloroquine - Side Effects, Dosage, Interactions.. Hydroxychloroquine Uses, Dosage & Side Effects -. Plaquenil hydroxychloroquine sulfate dose, indications.. Medscape - Indication-specific dosing for Plaquenil hydroxychloroquine sulfate, frequency-based adverse effects, comprehensive interactions, contraindications, pregnancy & lactation schedules, and cost information. What Conditions Does This Treat? Originally, hydroxychloroquine was used to prevent and treat malaria and was considered very effective. Now it is generally used for rheumatoid arthritis, but it has also been shown to work well for juvenile arthritis, some lupus symptoms, and other types of autoimmune conditions. For patients taking hydroxychloroquine to prevent malaria Your doctor may want you to start taking this medicine 1 to 2 weeks before you travel to an area where there is a chance of getting malaria. This will help you to see how you react to the medicine.