Codeine owes its origin to a family of drugs known as opioid narcotic analgesic which is mainly prescribed by the physicians for the treatment of mild to moderate pain in the body. It works by binding receptors in the central nervous system. It not only reduces pain, but also affects the way one reacts to any form of pain in the body. Long term use of this medication can have negative effects on the body. There are chances that a person can become habituated to it resulting in addiction and becoming tolerant to its use. Heart patients and those with renal infections must share their medical reports with a physician prior to its use. Codeine buy online should be the preferred option for people with severe body pain.