Native to Mexico, Salvia has hallucinogenic effects and is used for spiritual purposes.
Its active ingredient, salvinorin A, causes intense, short-lived changes in body sensations.
This plant is used for its psychoactive effects like mild euphoria and alterations in vision, judgment.
Physical effects of marijuana include red eyes, dry eyes, increased heart rate and unsteadiness.
Tobacco plants contain nicotine which is used in cigarettes and cigars.
It has biphasic psychoactive effects: short puffs act as stimulants, deep drags have tranquilising effects.
The leaves contain the alkaloid cocaine, which can be chewed.
It can lead to depression, anxiety, irritability, confusion and chronic fatigue.
A South American vine, Ayahuasca is used for spiritual, psychoactive drinks with intense effects.
Users often believe it leads to a sensation of 'rebirth' and deeper understanding of themselves.