Phenylephrine is a powerful vasoconstrictor. It is used as a nasal decongestant and cardiotonic agent. Phenylephrine is a postsynaptic α1-receptor agonist with little effect on β-receptors of the heart.
Epinephrine is a vasoconstrictor
Phenylephrine is a vasoconstricting agent.
Indeed.
yes
vasoconstrictor
Serotonin
decongestant
I believe phenylephrine can cause seizures in people with seizure disorders.
Serotonin
Yes it can.
No
decongestant