Rennet contains a proteolytic enzyme (protease) that coagulates the milk, causing it to separate into solids (curds) and liquid (whey). The active enzyme in rennet is called rennin or chymosin (EC 3.4.23.4) but there are also other important enzymes in it, e.g., pepsin or lipase. dried extract made from the stomach lining of a ruminant, used in cheesemaking to curdle milk. See rennin. [Middle English, probably from Old English *rynet.] rennet, substance containing rennin, an enzyme having the property of clotting, or curdling, milk.
Home Â» Opiate Agonist. Opiate agonists are drugs that mimic the effects of naturally-occurring endorphins in the body, and produce an opiate effect by interacting with the opioid receptor sites. Examples of opiate agonists include methadone and LAAM.These synthetic opiates help prevent cravings and withdrawal but do not produce a high or feelings of euphoria. An opiate antagonist is a drug that replaces opiate agonists at the receptor sites.This blocks the patient from experiencing the opiate effects of the agonist drug. Opiate antagonists include naloxone and naltrexone.Methadone is used therapeutically to treat addiction to opiates including heroin, morphine, OxyContin and other drugs. In the treatment of chronic opiate addiction, an opiate agonist can be used as maintenance therapy.his blocks the patient from experiencing the opiate effects of the agonist drug. Opiate antagonists include naloxone and naltrexone. Methadone is used therapeutically to treat addiction to opiates including heroin, morphine, OxyContin and other drugs.
Naloxone and naltrexone are commonly used opioid antagonist drugs which are competitive antagonists that bind to the opioid receptors with higher affinity than agonists but do not activate the receptors. This effectively blocks the receptor, preventing the body from responding to opioids and endorphins.