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for educational and safety purposes
Codeine and Tramadol both come up in the same conversations; they overlap on Mu-opioid receptor and Pain. Codeine: Codeine is an opioid medication and a naturally occurring alkaloid found in the opium poppy, used to relieve mild to moderate pain, to suppress coughing and to treat diarrhoea [1]. Tramadol: Tramadol is a centrally acting opioid analgesic used to treat moderate to moderately severe pain, set apart from typical opioids by a dual mechanism [1][2].
Codeine is an opioid medication and a naturally occurring alkaloid found in the opium poppy, used to relieve mild to moderate pain, to suppress coughing and to treat diarrhoea [1]. It is a prodrug: the body converts a portion of it into morphine, which produces most of its pain-relieving effect by acting on mu-opioid receptors [1][3]. First isolated in 1832, it remains one of the most widely used opioids and appears on the World Health Organization's list of essential medicines, but it is a controlled substance with real risks of dependence and, in some people, dangerous sensitivity [1][2].
Tramadol is a centrally acting opioid analgesic used to treat moderate to moderately severe pain, set apart from typical opioids by a dual mechanism [1][2]. In addition to weakly activating the mu-opioid receptor, it inhibits the reuptake of the neurotransmitters serotonin and norepinephrine, so it also behaves somewhat like an antidepressant [2]. First marketed in the late 1970s and sold under names such as Ultram, it is a scheduled controlled substance in many countries.
both fingerprints on one instrument; where the marks line up the two compounds work the same lever, where a slot goes dark only one of them touches it. read straight from each entry's affinity table; nothing here is invented.
substrate, bioactivated to morphine
substrate
weak agonist (prodrug)
partial agonist
agonist
depresses cough reflex
weak agonist
inhibits reuptake
inhibits reuptake
strengths are the entries' qualitative ratings (strong / moderate / weak); Ki and EC50 figures appear where an entry records them.