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.
These data suggest that a single 200-mg dose of doxycycline given within 72 hours after an I. scapularis tick bite can prevent the development of Lyme disease. Doxycycline for 30 day courses has been used to treat certain cardiac, nervous system, and joint manifestations of Lyme disease. Other specific manifestations of Lyme disease are generally treated with intravenous antibiotics, most often ceftriaxone 2 gm twice daily for 14 to 30 days, and these include Lyme meningitis, neuroborreliosis, arthritis not responsive to doxycycline, and severe cardiac manifestations.