Codeine is surely an opioid agonist comparatively selective for the mu-opioid receptor, but with a Considerably weaker affinity than morphine. The analgesic Qualities of codeine have been speculated to originate from its conversion to morphine, although the exact mechanism of analgesic action continues to be unfamiliar. Codeine: A examine in https://wockusa.com/product/farmapram-2mg/