Of the various ways to medicate with cannabis, ingesting or eating it in some form is one of the most effective. One of the oldest and most versatile methods of ingesting marijuana is the tincture. Cannabis tincture is a particular liquid that has been infused with cannabinoids such as THC or CBD. This medicine is usually kept in a bottle with a dropper for ease of dosing. Traditionally, tinctures are made using alcohol, but other mediums such as glycerine and MCT oil, a coconut oil that has a more fluid state, are also forms of tincture.