Phenylephrine

Question 1

Alternate Name

Answer 1

Neosynephrine

Question 2

Description

Answer 2

synthetic alpha-receptor agonist, alpha 1 > > alpha 2

Question 3

Actions

Answer 3

Produce vasoconstriction and venoconstriction by stimulating contraction of vascular SM cells

Question 4

Indications

Answer 4

1. Nasal Decongestant
2. Mydriatic (dilate pupil for eye exam) – Mydriasis
3. Increase BP in vasodilated state

Question 5

Other Facts

Answer 5

Less Potent vasoconstrictior than NE
Not inactivated by COMT
Topical (eye, nose), intravenous infusion (increase BP)

Question 6

Vasoconstrict turbinates

Answer 6

shrink tissue -> less congestion

Question 7

After 3 days use -> suddenly stop taking

Answer 7

Congestion will get worse