Tramadol, an opioid, is a potent oral therapy painkiller that helps to relieve moderate to severe pain in adults. It belongs to the narcotic or opioid group of drugs that works by binding the pain receptors(blocking the pain signals). Tramadol directly acts on opioid receptors and effectively tackles acute and chronic pain symptoms. Buy Tramadol Online. If you are dealing with acute or chronic pain like back pain, chest pain, surgery, severe injury, and pain after the operation, you can take Tramadol. It is a strong pain reliever; you can get relief from long-lasting pain come in the combination of acetaminophen and paracetamol. Tramadol is available in extended-release and immediate-release versions, and you can take the preferred version as per your doctor's instruction. It begins its effects within 30 to 60 minutes and lasts in the body for up to 4 to 6 hours.