Tramadol vs Oxycodone
Opioid analgesics (opiates) are natural substances that produce effects similar to those produced by morphine, codeine, heroin, and other opiate drugs. Opioids act directly on the brain and spinal cord to relieve pain. Opioids have been used for centuries to treat pain and can be derived from opium poppies, coca leaves, and other plants. Opioids