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.
May not disappear with rest or use of angina medication; Might signal a heart attack; There's another type of angina, called variant angina or Prinzmetal's angina. This type of angina is rarer. It's caused by a spasm in your heart's arteries that temporarily reduces blood flow. Characteristics of variant angina (Prinzmetal's angina)