Impotence

[Hemichordate]

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What is the mechanism by which beta-adrenoceptor antagonists cause impotence and sexual dysfunction?

 

[Wolverines83]

they oppose vasodilation (B2 receptors)

no vasodilation = no flow to the parts down below

 

[Phloston]

they oppose vasodilation (B2 receptors)

no vasodilation = no flow to the parts down below

When you beta-block, you get unopposed alpha. Alpha-1 agonism leads to decreased penile blood flow.