Elemental potassium is a soft silvery-white alkali metal that oxidizes rapidly in air and reacts vigorously with water, generating sufficient heat to ignite hydrogen emitted in the reaction and burning with a lilac flame.
An antianginal is any drug used in the treatment of angina pectoris, a symptom of ischaemic heart disease.
Anti-Estrogens are prescription medications that are abused by steroid users to block or minimize the effects of estrogen in the body for purposes of countering the side effects of anabolic androgenic steroids.