Iodine is available in dietary supplements, usually in the form of potassium iodide or sodium iodide. Many multivitamin-mineral supplements contain iodine. Dietary supplements of iodine-containing kelp (a seaweed) are also available. Iodine supplements might interact with anti-thyroid medications such as methimazole (TapazoleÂ®), used to treat hyperthyroidism. 2  Taking high doses of iodine with anti-thyroid medications could cause your body to produce too little thyroid hormone.
Five medications are commonly used by physicians licensed in United States to prevent malaria: mefloquine, doxycycline, atovaquone/proguanil, chloroquine, and under special circumstances, primaquine. 1 Mefloquine, chloroquine, and doxycycline work only on the erythrocytic stage of malaria.
A: Doxycycline is a tetracycline-type antibiotic used to treat bacterial infections (e.g., Rickettsial infections, sexually transmitted infections, respiratory tract infections, ophthalmic infections, Anthrax, adjunctive therapy in acute intestinal amebiasis and severe acne, and prophylaxis of malaria).or the prevention of malaria, you should start taking doxycycline up to two days before traveling. Continue taking the drug for four weeks after you leave an area where malaria is a risk. Do not take doxycycline to prevent malaria for more than four months.