Active ingredient: magnesium chloride hexahydrate. Inactive ingredients: calcium carbonate, di-calcium phosphate, hypromellose phthalate, microcrystalline cellulose, titanium dioxide, povidone, croscarmellose sodium, stearic acid, triacetin, magnesium stearate, talc, hypromellose, mineral oil, fd&c blue no. 2 aluminum lake.
Important: do not use if imprinted seal under cap is broken.