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Hallucinogen-Induced Persisting Perception Disorder: A Case Report.

Javairia Ayyub, Sailaja Nandennagari, Dylan Edelbaum, Jennifer Agbo, Deenuka Nagendran, Luciano Tamayo

Cureus September 1, 2023 DOI: 10.7759/cureus.46262 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Case report Peer reviewed
Sample size 1
Population 28-year-old Caucasian male with polysubstance use
Intervention lamotrigine
Topics LSD
Keywords Alpha-2 adrenergic agonists Antiepileptic medications Benzodiazepines Visual perception distortion Flashbacks Visual distortions Visual halluc
Citations 1
Key findings A patient with HPPD after LSD use improved with lamotrigine, which is the gold standard for treating perceptual disturbances, rather than with first-line alpha-2 adrenergic drugs or benzodiazepines.

Abstract

Hallucinogen-persisting perception disorder (HPPD), also known as acute hallucinogen-induced psychosis or informally known as "flashbacks," is an unusual condition experienced by patients due to the use of different hallucinogenic substances. Hallucinogen-persisting perception disorder causes many symptoms, predominantly persistent visual perception distortion instead of intermittent distortion. Although different hallucinogens could cause HPPD, lysergic acid diethylamide (LSD) and LSD-like properties seem to be the most common hallucinogens causing the symptoms. In our case report, the patient is a 28-year-old Caucasian male with a long psychiatric and social history of polysubstance use using LSD and cannabis. He started experiencing many of the classic symptoms of HPPD seven months after stopping LSD. The diagnosis is suspected by ruling out all other possible underlying causes with the help of several laboratory and imaging tests. Despite having an extensive psychiatric history of illnesses, the patient's symptoms failed to improve with antipsychotics, confirming that the symptoms were not only due to mental illness. Although supposedly the first-line treatment for HPPD is the use of alpha-2 adrenergic drugs such as clonidine and benzodiazepines, we started to witness improvement in patient's symptoms with the use of lamotrigine, which is the gold standard in treating perceptual disturbance in time and space.

Comparable studies

Other case reports and case series on LSD, most cited first.

Study Year Design Participants
Lasting Neuropsychiatric Sequelae of (??)Methylenedioxymethamphetamine (???Ecstasy???) in Recreational Users Persons who ingested large doses of MDMA 1991 Case study n = 2
Further Studies in the Therapeutic Value of Lysergic Acid Diethylamide in Mental Illness Patients with mental illness 1957 Case series
Coma, Hyperthermia, and Bleeding Associated with Massive LSD Overdose a Report of Eight Cases People who self-administered large amounts of pure LSD powder intranasally 1975 Case series n = 8
Using a MDMA- and LSD-Group Therapy Model in Clinical Practice in Switzerland and Highlighting the Treatment of Trauma-Related Disorders Patients with chronic complex post-traumatic stress disorder (c-PTSD), dissociative,... 2022 Case series
Persistent Palinopsia Following Ingestion of Lysergic Acid Diethylamide (LSD) Patients who developed persistent palinopsia after LSD ingestion 1996 Case series n = 3

Citations in the library

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