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.
It is a hallucinogen like mescaline and psilocybin. Narcotic are like morphine, codeine and oxycodone which kill pain. I think you are confusing the term narcotic with controlled substance.Marijuana is a schedule 1 controlled substance which means that there is no recognized therapeutic use in the US. However, the active ingredient, THC is a schedule 3 and is used to stimulate appetite and for control of nausea.t is a hallucinogen like mescaline and psilocybin. Narcotic are like morphine, codeine and oxycodone which kill pain. I think you are confusing the term narcotic with controlled substance.