Response to this agent is decreased with prior treatment with either reserpine or guanethidine:
Tyramine
Oxymetazoline
Norepinephrine
Potential mechanism/mechanisms associated with indirect-acting agents which elevate norepinephrine or epinephrine availability thus stimulating adrenergic receptors:
Inhibition of norepinephrine transport into sympathetic neurons.
Blocking metabolizing enzymes catecholamines.
Both
Neither
This adrenergic receptor is least likely to be activated by norepinephrine
β1
β2
α
The clinical use of phenylethylamine-type adrenergic agents (epinephrine, norepinephrine, dopamine, droxidopa) as a "pressor" is mostly mediated by this receptor system.
α
β
Both equally
This/these agents are particularly effective at nasal decongestion
Ephedrine
Phenylephrine
Both
Neither
Which one(s) of the following agents exhibit prominent CNS activity?
Metaraminol
Methamphetamine
Amphetamine
A & B
B & C
A & C
A, B & C
Which one(s) of the following drugs exhibit (a) notable bronchodilator effect(s)?