Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Interaction of opioids with neurotransmitters in the enteric nervous system. Opioids reduce tonic/segmental contractions and impair peristalsis by inhibition of the release of ACh and SP. The decrease of GI secretion is caused by the inhibition of the activity of ACh and VIP containing neurons
