Chemical Forums

Specialty Chemistry Forums => Biochemistry and Chemical Biology Forum => Topic started by: AhmedEzatAlzawalaty on December 08, 2007, 12:36:44 PM

Title: Atropine
Post by: AhmedEzatAlzawalaty on December 08, 2007, 12:36:44 PM

i want any one to tell me why atropine produces initial bradycardia.

Title: Re: Atropine
Post by: marta on August 26, 2008, 08:10:32 AM

...because atropine originally activates vagus nerve, then after a while starts blocking muscarinic receptors in the heart and noradrenaline from sympathetic nervous system takes over ...causing tachycardia..I hope I m right:)
Marta