Questions and Answers/verified/latest update
Graded A+
Opioid peptides - ✔✔Peptides that produce analgesia when
administered and share structural similarities with morphine-like
drugs.
Morphine-like drugs - ✔✔Drugs that produce analgesia and share
structural similarities with opioid peptides, binding to the same CNS
receptors.
Analgesia - ✔✔Pain relief.
Cross-tolerance - ✔✔When tolerance to one substance results in a
similar tolerance to another substance.
Naloxone - ✔✔An antagonist that can block the analgesic effects of
both opioid peptides and morphine-like drugs.