||Marinol is the trade name for dronabinol, or synthetic Delta 9 - tetrahydrocannabinol (THC). Delta 9-tetrahydrocannabinol is the primary active ingredient in Cannabis. See the Cannabis Vaults for more about THC. A simple search on this site will also yield more information.|
Unimed, the pharmaceutical company which produces it, has a website devoted to this one product.
Marinol is hotly debated in the medical cannabis discussion because some people argue that if THC is available by prescription, then whole plant cannabis does not need to be legal, while others argue that if the active ingredient in Cannabis is legal to prescribe (Schedule III), then the Cannabis plant itself should also be Schedule III. See another Ask Erowid Q & A for more on this.