Cannabis comes from the cannabis plant. Cannabis can be inhaled (smoked), swallowed (e.g., in food and drinks), placed under the tongue (e.g., strips and sprays), or applied on the skin (e.g., oils and creams).
Cannabis contains hundreds of chemicals. The most researched of these is tetrahydrocannabinol (THC). THC is the chemical in cannabis that makes people feel “high”. The strength of the cannabis product depends on the level of THC in the product. The highest THC levels are found in hash oil, followed by hashish (resin), and marijuana (dried leaves/flowers). Cannabidiol (CBD) is another chemical in cannabis. Unlike THC, it does not make people feel “high”.
Short-term effects of using cannabis can include: