WAITING TO INHALE examines the heated debate surrounding marijuana and its use as medicine in the United States. As patients demand laws to protect their right to use medical marijuana, opponents claim their argument is just a smokescreen for a different agenda - to legalize the drug altogether. How did America go from Reefer Madness to smoked-cannabis clinical trials in just a few decades? Can marijuana alleviate the devastating symptoms of AIDS, cancer and multiple sclerosis? This documentary goes inside the lives of patients who have been forever changed by illness, as well as parents who have lost children to drug overdoses and believe that marijuana is the culprit. Above all, WAITING TO INHALE sheds new light on the controversy and presents new evidence that marijuana could hold a big stake in the future of medicine.