If you’re looking for medicinal forms and uses of cannabis, a good bet are oils and tinctures. Medical cannabis tinctures are a liquid form of cannabis extracted (CBD, THC or both) plus alcohol. If you’ve seen someone using a glass bottle with a dropper, that was probably a cannabis oil or tincture. Cannabis oils are a simple, straightforward delivery system, taking a few droplets from the bottle and placing them under your tongue (some like to drop them in food or beverage). Dosing measurements are more precise with oils and tinctures.