True about phenylephrine is:
Ans: c (Increases peripheral resistance) KDT, 5 ed, p. 127Phenylephrine is a selective alpha 1 agonist.It causes vasoconstriction and therefore increases BP.No cardiac action.HR decreases due to reflex bradycardia.Mydriatic with no cycloplegia. Therefore preferred in elderly.Reduces IOT by constricting ciliary body blood vessels.Use: Orally administered nasal decongestant.
Hypotension
Cardiac depression
Increase peripheral resistance
Increase IOT by constricting ciliary body B-V
C.V.S