QuestionSBA
QuestionChoice
Incorrect, this is the site of action for drugs like salbutamol
10007083
c
Beta-2 receptor
QuestionChoice
Bisoprolol is a beta-blocker. It selectively blocks the action of beta-1 at the beta-1 receptor, which causes a reduction in heart rate, blood pressure and myocardial oxygen demand.

It does not directly act upon alpha-1 receptor or beta-2 receptors. Dopamine and serotonin receptors are not involved in its mechanism of action. Think '1 heart and 2 lungs' to remember that beta-1 acts upon the heart while beta-2 acts upon the lungs.
10007081
a
Beta-1 receptor
QuestionChoice
Incorrect, this is the site of action for drugs such as tamsulosin and doxasozin.
10007082
b
Alpha-1 receptor
QuestionChoice
Incorrect, this is the site of action for drugs like ropinirole.
10007084
d
Dopamine receptor
QuestionChoice
Incorrect, this is the site of action for drugs like ondansetron.
10007085
e
Serotonin receptor
Concept
Chapter
2693
4566
Class II anti-arrythmics: Beta-blockers
Topic
169
Cardiovascular pharmacology
13963
A 75-year-old man with a history of hypertension and a previous myocardial infarction presents to his GP for a medication review. He asks the doctor about one of his new medications.

Which of the following receptors does bisoprolol act on?
a