Toradol (ketorolac): Was given an im injection in the buttocks for migraines and it was completely ineffective. The pain that the injection caused was infuriating considering there was absolutely no relief of the headache..
Examples of full agonists are oxycodone, methadone, codeine, heroin and morphine. PARTIAL AGONISTS. Partial agonists are drugs that bind primarily to mu opioid receptors and cause them to produce endorphins but to a much lesser extent than full agonists. BuprenorphineÂ®, SuboxoneÂ® and SubutexÂ® are partial agonists.
Codeine is a commonly prescribed analgesic taken orally, frequently in combination with acetaminophen, aspirin or other prescription drugs. Codeine is converted in the body to morphine and both are excreted in the urine. Morphine is used primarily in hospital settings as a powerful short term pain reliever.