Normal extinction of species that occurs as a result of changes in local environmental conditions.
Verapamil Uses: An Overview. 1  High blood pressure (hypertension). 2  Chest pain (angina), including: 3  Vasospastic angina (Prinzmetal's angina or variant angina). 4  Unstable angina. 5  Chronic stable angina (exertional angina). 6  Certain irregular heart rhythms (arrhythmias), including: 7  Chronic atrial flutter.
PRESCRIBED FOR: Atenolol is prescribed for patients with high blood pressure (hypertension). It also is used to treat chest pain (angina pectoris) related to coronary artery disease.Atenolol also is useful in slowing and regulating certain types of abnormally rapid heart rates (tachycardias).RESCRIBED FOR: Atenolol is prescribed for patients with high blood pressure (hypertension). It also is used to treat chest pain (angina pectoris) related to coronary artery disease.