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Psychedelic and Dissociative Drugs

These substances alter perception, thoughts, and feelings, including LSD, PCP, and psilocybin.

Published: November 25, 2025
Last Edited: February 17, 2026
15 min read
BZ

Written by

Benjamin Zohar, NCACIP

Nationally Certified Advanced Addiction Intervention Professional

EZ

Edited by

Ezra Zohar, M.S. Ed.

Editorial Director

BM

Medically Reviewed by

Brandon McNally, RN

Medical Reviewer, ICU Critical Care Nurse

Published: November 25, 2025
Last edited: February 17, 2026
15 min read

How Psychedelic and Dissociative Drugs Affects You

LSD, PCP, DMT, and others cause profound hallucinations, altered perception, dissociation, ego dissolution. PCP causes extreme agitation and violence. Effects vary dramatically by substance.

Duration & Timeline

LSD lasts 8-12 hours. PCP lasts 4-6 hours but effects can persist for days. DMT lasts 5-20 minutes (smoked). Flashbacks (HPPD) can occur months after use.

Specific Health Risks

Psychotic episodes, HPPD (flashbacks), dangerous behavior during intoxication, triggering latent mental illness, accidents/injuries, PCP causes extreme violence requiring restraints.

Psychedelic and Dissociative Drugs Statistics & Research

  • • SAMHSA reports 2.6 million Americans used hallucinogens in 2022, with LSD use increasing 50% among young adults from 2018-2022
  • • HPPD (flashbacks) occurs in 4-5% of hallucinogen users, sometimes persisting for years, per psychiatric literature
  • • Emergency department visits for hallucinogens increased 85% from 2019-2022, often due to 'bad trips' and psychiatric crises
  • • PCP-related violent incidents are disproportionately high compared to other drugs, requiring law enforcement/medical intervention in 60% of cases

Sources: NIDA, SAMHSA, CDC, DEA, FDA, peer-reviewed medical journals. See full references below.

Frequently Asked Questions

Why Choose Professional Treatment in New York

Professional addiction treatment provides the medical supervision, therapeutic support, and structured environment necessary for successful recovery from psychedelic and dissociative drugs. Evidence-based treatment programs address both the physical and psychological aspects of addiction.

Treatment centers throughout Long Island and New York offer specialized programs accredited by The Joint Commission and licensed by the New York State Office of Addiction Services and Supports (OASAS). These facilities combine medical care, evidence-based counseling, and ongoing support to ensure the best possible outcomes for lasting recovery.

According to data from the New York State OASAS, treatment completion rates are highest when individuals receive comprehensive care that includes medical management, individual therapy, group support, and family involvement in the recovery process.

Medical References & Sources

This page contains information sourced from peer-reviewed medical literature, federal health agencies, and accredited medical institutions to ensure accuracy and compliance with E-E-A-T (Experience, Expertise, Authoritativeness, and Trustworthiness) standards.

  1. Nichols, D.E.. "Psychedelics." Pharmacological Reviews, 2016 DOI: 10.1124/pr.115.011478. Available at: https://doi.org/10.1124/pr.115.011478
  2. National Institute on Drug Abuse (NIDA). "Hallucinogens and Dissociative Drugs." NIDA Research Report. Available at: https://nida.nih.gov/publications/research-reports/hallucinogens-dissociative-drugs
  3. Johnson, M.W., Richards, W.A., & Griffiths, R.R.. "Human hallucinogen research: guidelines for safety." Journal of Psychopharmacology, 2008 DOI: 10.1177/0269881108093587. Available at: https://doi.org/10.1177/0269881108093587

Medical Disclaimer

The information provided on this page is for educational purposes only and should not be considered medical advice. This page does not provide medical diagnoses, treatment prescriptions, or clinical recommendations. Always consult with qualified healthcare professionals for diagnosis and treatment of substance use disorders. If you are experiencing a medical emergency, call 911 immediately.

This content was written by certified addiction professionals and reviewed by licensed medical practitioners to ensure accuracy and adherence to current clinical guidelines. Last fact-checked: July 6, 2026.

If you or someone you know is struggling with substance use, you can reach our 24/7 confidential Long Island Rehab Helpline at 631-762-3763 for free, confidential information and treatment referral.

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