A drug group that produces decreases in heart rate and blood pressure, as well as increases in gastrointestinal motility, is likely to be the:

Question

Quizplus · Accepted Answer

β1-adrenergic receptors are found in the heart, and their activation causes an increase in heart rate and contractility, as well as an increase in blood pressure. Therefore, β1-blockers decrease heart rate and blood pressure. In addition, β1 receptors are also found in the gastrointestinal tract, and their activation leads to a decrease in motility, so β1-blockers increase gastrointestinal motility.

A Drug Group That Produces Decreases in Heart Rate and Blood