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.
Verapamil may also be used to treat Migraines. Verapamil is available under the following different brand names: Isoptin SR, Calan SR, Covera HS, Isoptin, Isoptin IV, Calan, Verap, Verapamil SR, Verelan, and Verelan PM. Dosages of Verapamil: Adult and Pediatric Dosage Forms and Strengths. Injectable solution. 2.5 mg/mL; Tablet. 40 mg; 80 mg; 120 mg