A person, organization, or establishment associated with another as a subordinate, subsidiary, or member: network affiliates. [Medieval Latin affÄ«liÄre, to adopt : Latin ad-, ad- + Latin fÄ«lius, son; see dhÄ(i)- in the Appendix of Indo-European roots.]
Morphine is isolated from opium in large quantities (over 1000 tons per year), although most commercial opium is converted into codeine by methylation. Morphine acts as an anesthetic without decreasing consciousness, and it is one of the most powerful analgesics known.
Analgesic action: Morphine is the principal opium alkaloid, the standard for opiate agonist analgesic activity. Mechanism of action is thought to be via the opiate receptors, altering patientâs perception of pain. Morphine is particularly useful in severe, acute pain or severe, chronic pain.Morphine also has a central depressant effect on respiration and on the cough reflex center.echanism of action is thought to be via the opiate receptors, altering patientâs perception of pain. Morphine is particularly useful in severe, acute pain or severe, chronic pain. Morphine also has a central depressant effect on respiration and on the cough reflex center.