1 interaction related to thyroid storm
Methimazole blocks new thyroid hormone synthesis but does not prevent the gland from using iodide already inside it. Adding a large iodine load (kelp, iodine drops, iodine-containing contrast, amiodarone) can fuel hormone production, blunt methimazole's effect, and in some people worsen hyperthyroidism or, rarely, precipitate thyroid storm.
