Opium is dried latex obtained from the seed capsules of the opium poppy Papaver somniferum. Approximately 12 percent of opium is made up of the analgesic alkaloid morphine, which is processed chemically to produce heroin and other synthetic opioids for medicinal use and for the illegal drug trade. The latex also contains the closely related opiates codeine and thebaine, and non-analgesic alkaloids such as papaverine and noscapine. The traditional, labor-intensive method of obtaining the latex is to scratch ("score") the immature seed pods (fruits) by hand; the latex leaks out and dries to a sticky yellowish residue that is later scraped off and dehydrated. The word meconium historically referred to related, weaker preparations made from other parts of the opium poppy or different species of poppies.

ਅਫੀਮ ਅਫੀਮ ਦੇ ਪੌਦੇ ਦੇ ਦੁੱਧ (latex) ਨੂੰ ਸੁਕਾ ਕੇ ਬਣਾਇਆ ਗਿਆ ਪਦਾਰਥ ਹੈ ਜਿਸਦੇ ਖਾਣ ਨਾਲ ਨਸ਼ਾ ਹੁੰਦਾ ਹੈ। ਇਸਨੂੰ ਖਾਣ ਵਾਲੇ ਨੂੰ ਹੋਰ ਗੱਲਾਂ ਤੋਂ ਬਿਨਾਂ ਤੇਜ ਨੀਂਦ ਆਉਂਦੀ ਹੈ।