Final answer:
The common suffix for generic beta blocker medications is '-olol', and these drugs work by blocking β-receptors in the heart to lower heart rate and blood pressure.
Step-by-step explanation:
The common suffix for generic beta blocker medications is '-olol'. Beta blockers, such as metoprolol and propranolol, work by binding to β-receptors in the heart, which are associated with vasoconstriction and cardioacceleration, and blocking the effects of adrenaline. This results in a decrease in heart rate and blood pressure, making these drugs effective for treating conditions like hypertension and congestive heart failure. However, overprescription of these drugs can lead to bradycardia and potentially complete stoppage of the heart.