Drug Abuse: LSD, MDMA, and Other Hallucinogens

Surprisingly enough there's up to six thousand species of plants, mainly fungi, with psychoactive properties in the nature. Generally the collection of chemicals in the plants that act as psychoactive are called hallucinogens.Today there's many forms of hallucinogens, which can be separated into three groups, depending on which neurotransmitter in the brain bears the closest resemblance to the molecular features of the drug.