The correct spelling of the word "codamine" is actually "codeine" (/ˈkoʊdiːn/). The IPA phonetic transcription of this word indicates that it is pronounced as "koh-deen". Codeine is a pain medication that is often used to treat mild to moderate levels of pain. It is an opioid that works by blocking pain receptors in the brain. Codeine can also be used to treat coughing and diarrhea, and it is sometimes mixed with other pain medications, such as acetaminophen or aspirin.
An alkaloid, C20H26NO4, derived from the mother liquor of morphine, isomeric with laudanine; occurring in hexagonal crystals.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.