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A member asked:

Why does norepinephrine cause more vasoconstriction than heart rate increase?

8 doctors weighed in across 2 answers
Dr. Andrew Germanovich answered

Specializes in Pain Management

Alpha receptors : The arteries like norepinephrine more and constrict tighter than with epi.

Dr Ailloni-Charas and another doctor agreed

Answered 12/10/2013

4.7k views

Thank

Alpha receptors: Ne has a higher affinity for the Alpha receptors which are located in the peripheral arterioles and cause vasoconstriction. Beta receptors are.Responsible for accelerating the heart rate.

Dr Ailloni-Charas and 5 doctors agreed

Answered 6/24/2014

4.7k views

Thank

Related Questions

A member asked:

I have pots and even when I lay down with perfect blood pressure and heart rate I am lightheaded, what could is be? Cerebral vasoconstriction?

A doctor has provided 1 answer

A member asked:

I have been on a snri for fifteen years. I use to have a low pulse -70s . The norepinephrine has caused my pulse to be in the 90s . Could a pulse in the 90s cause a heart problem? I need my antidepressant and dont want to discontinue?

2 doctors weighed in across 2 answers

A member asked:

Would propranolol be effective at widening blood vessels and relieving heart pain due to vasoconstriction? Or would other meds need to be added?

A doctor has provided 1 answer

A member asked:

How come people use epinephrine for heart attacks, and not norepinephrine? And would one or both be useful for a first aid kit?

A doctor has provided 1 answer

A member asked:

If i listen to really fast music, where does epinephine or norepinephrine get released? In temporal lobe? Wud it cause vasoconstriction in temp lobe?

A doctor has provided 1 answer

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