This is my attempt to explain air pressure in ductwork. This video is part of the heating and cooling series of training videos made to accompany my websites... This is my attempt to explain air pressure in ductwork. This video is part of the heating and cooling series of training videos made to accompany my websites... Skip navigation
Medical marijuana refers to the use of the Cannabis plant as a physician-recommended herbal therapy as well as synthetic THC and cannabinoids. So far, the medical use of cannabis is legal only in a limited number of territories, including Canada, Belgium, Australia, the Netherlands, Spain, and several U.S. states.
Marijuana is made from the dried leaves and buds of the Cannabis sativa plant. While the Food and Drug Administration (FDA) hasn't recognized or approved the use of the marijuana plant as medicine, many states have legalized marijuana for medical use. The FDA has approved two drugs, dronabinol (Marinol, Syndros) and nabilone (Cesamet), made from synthetic forms of ingredients found in marijuana.