THC in the brain works on the cannaboid system, making it a unique
drug with many untouched applications.
Marinol takes 2.5-3 hours to be absorbed and have an effect. The effects last only about 3 hours. See below for details on this limitation.
I am a PhD scientist and engineer with cancer, autoimmune and have bipolar. The following is from personal experience plus scientific investigation. Feel free to share.
Consider a good pain med like hydrocodone (or other opioid) for pain in Stage 4.