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A member asked:

How does morphine affect blood vessels?

A doctor has provided 1 answer
Dr. Mark Sacher answered

Specializes in Pain Management

Dilates: Morphine is a smooth muscle relaxant and dialates blood vessels. Also releasing some histamine which also relaxes blood vessels

Dr Ali and another doctor agreed

Answered 6/29/2018

5.7k views

Thank

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In a home environment with a pulse oximeter & a blood pressure machine. Is it better to take 25-50mg oral morphine or 10mg IV morphine.Med hist for y?

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Left flank pain after bending over I went to the ER before and got morphine because it was so bad, they found nothing after urine, blood and cat scan?

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I have pain in my left rib. Abdominal CT was clear, chest X-ray was clear, blood panels look good. They gave me morphine and it made the pain worse. What could cause this?

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