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A psychoactive drug from the Cannabis plant used primarily for medical or recreational purposes. The main psychoactive component is tetrahydrocannabinol (THC). Cannabis has been used for its mental and physical effects, such as a high or stoned feeling, a general change in perception, and an increase in appetite.

A strong stimulant frequently used as a recreational drug. It is commonly snorted, inhaled as smoke, or dissolved and injected into a vein. Mental effects may include loss of contact with reality, an intense feeling of happiness, or agitation.

A medication primarily used for starting and maintaining anesthesia. It induces a trance-like state while providing pain relief, sedation, and memory loss. It is also used as a recreational drug and has shown promise in treating depression.

One of the most potent mood-changing chemicals. It is manufactured from lysergic acid, found in a fungus that grows on rye and other grains. LSD is known for causing altered thoughts, feelings, and awareness of surroundings.