Beta-agonists Flashcards
1
Q
What is the action of a Beta1 agonist?
A
increase the heart rate and force of contraction in cardiac muscle which leads in increased cadiac output. (thats why B blockers can lower BP)
2
Q
What is the action of a Beta 2 agonist?
A
-cause relaxation of vascular, bronchial and GI smooth muscle
3
Q
What is the name of the B1 and B2 agonist used to lower diastolic BP while systolic remains unchanged?
A
Isoproterenol
4
Q
What B1 receptor agonist is used for treatment of severe heart failure?
A
Dobutamine
5
Q
What are the names of the B2 selective agonists used to treat asthma patients?
A
- Albuterol
- terbutaline
6
Q
Which drug has longer lasting effects as a B2 agonist for asthma treatment?
A
Salemterol
