Drugs causing bronchospasm (315/1700)

All the following drugs do not cause bronchoconstriction except?
a. Atenolol
b. Salbutamol
c. Salmetrol
d. Ipratropium bromide
e. Cocaine






























answer A

non selective B blockers b1/b2 theorectically can cause bronchospasm as they are the opposite of B2 agonists which cause bronchodilation, however cardio selective B1 blockers have a negligible effect on b2 receptors, so they won't cause bronchospasm

	Clinical Uses
Class/Drug	HTN	Angina	Arrhy	MI	CHF	Comments
Non-selective β1/β2
carteolol	X					ISA; long acting; also used for glaucoma
carvedilol	X				X	α-blocking activity
labetalol	X	X				ISA; α-blocking activity
nadolol	X	X	X	X		long acting
penbutolol	X	X				ISA
pindolol	X	X				ISA; MSA
propranolol	X	X	X	X		MSA; prototypical beta-blocker
sotalol			X			several other significant mechanisms
timolol	X	X	X	X		primarily used for glaucoma
β1-selective
acebutolol	X	X	X			ISA
atenolol	X	X	X	X
betaxolol	X	X	X			MSA
bisoprolol	X	X	X		X
esmolol	X		X			ultra short acting; intra or postoperative HTN
metoprolol	X	X	X	X	X	MSA
nebivolol	X					relatively selective in most patients; vasodilating (NO release)