What kind of angina are you referring to? There are several types of angina, usually involving pain or tightness in some part of the body, typically due to insufficient blood flow to the area. The term is however commonly used to refer to angina pectoris, which is basically chest pain due to insufficient blood flow, usually caused by coronary heart disease.
In any case, this seems like an odd and, frankly, foolish, question to ask. Today, it is quite well known that cocaine affects heart function negatively, in addition to causing several other health problems. It is dangerous and damaging enough to use cocaine when you are healthy, but if you already have a heart condition, using cocaine is practically begging for trouble, and is in fact suicidal. Unlike substances like alcohol and tobacco, even occasional use of cocaine can cause lasting damage that could cause or aggravate a heart condition. Regular use is even worse. In people who already have high blood pressure or heart problems, cocaine can cause a heart attack or a stroke.
In case this is not enough to put you off cocaine, here are some other problems it can cause: depression, anxiety, itching, respiratory failure, corneal damage, cerebral hemorrhage, and hyperthermia.
answered by M W