Opioids decrease neurotransmission by preventing presynaptic Ca2+ influx.
Prior to administering an opioid, patients should be informed that the drug will:
When opioids interact with GABAergic neurons, they cause hyperpolarization and suppress the release of GABA onto dopaminergic VTA neurons, ultimately disinhibiting VTA neurons and increasing dopamine release onto downstream targets.
https://brainly.com/question/37471672