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Hallucinogens are chemicals which after consuming can alter a person’s thoughts, feelings and perceptions. They are said to cause hallucinations. The hallucinogens include L.S.D. mescaline, psilocybin and products of hemp plant Cannabis sativa.
The effects of hallucinogens are
1. Hallucination, distorted perception.
2. Intensified feelings and sensory experience like brighter colors and sharper sounds.
3. Disorganised thoughts, confusion and difficulty concentrating, thinking or maintaining attention.
4. Increased heart rate, breathing rate, body temperature and blood pressure.
5. Nausea and vomiting .