Well, understanding how rocks are changed by heat, pressure, and chemical solutions can help us in understanding the variety of metamorphic rocks which we actually observe on the Earth's surface.
Noscapine is a benzylisoquinoline alkaloid produced in opium poppy (Papaver somniferum) and other members of the Papaveraceae. It has been used as a cough suppressant and more recently was shown to possess anticancer activity.
Tramadol dose not contain codeine. Codeine is an opiate. Tramadol is a nonopiate analgesic. Mark Connel2001 is mistaken. Tramadol is not an opiate. It is a synthetic analog of codeine (which is an opiate).