Clinical treatment of cluster headache with the serotonergic indoleamine psychedelics psilocybin and LSD and with ketamine: A case series

Background Cluster headache is an excruciating condition for which standard treatments are usually insufficient. Evidence has accumulated that serotonergic psychedelic indoleamines including psilocybin and LSD can be effective in preventing attacks. Methods In this case series, nine patients with ep...

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Main Authors: Jonathan Leighton, Carmen Lau, Aisha Savdo, Livia Granata
Format: Article
Language:English
Published: SAGE Publishing 2025-05-01
Series:Cephalalgia Reports
Online Access:https://doi.org/10.1177/25158163251345472
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author Jonathan Leighton
Carmen Lau
Aisha Savdo
Livia Granata
author_facet Jonathan Leighton
Carmen Lau
Aisha Savdo
Livia Granata
author_sort Jonathan Leighton
collection DOAJ
description Background Cluster headache is an excruciating condition for which standard treatments are usually insufficient. Evidence has accumulated that serotonergic psychedelic indoleamines including psilocybin and LSD can be effective in preventing attacks. Methods In this case series, nine patients with episodic and chronic cluster headache that didn’t respond to conventional treatments were treated at a clinic with psilocybin or LSD, under compassionate use provisions, and in most cases separately with ketamine. Results All patients responded positively to at least one of the treatments, and eight of nine responded positively to the treatment with the psychedelic indoleamines, in several cases with extended periods free of attacks. Conclusion These clinical data, though of an exploratory nature, add to the existing pool of evidence for the usefulness of these substances for treating cluster headache, and further support the lowering of legal and regulatory barriers to medical access to the psychedelic indoleamines.
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spelling doaj-art-0d756f7bcea34a4e9365c3bd6ec84a022025-08-20T03:12:53ZengSAGE PublishingCephalalgia Reports2515-81632025-05-01810.1177/25158163251345472Clinical treatment of cluster headache with the serotonergic indoleamine psychedelics psilocybin and LSD and with ketamine: A case seriesJonathan Leighton0Carmen Lau1Aisha Savdo2Livia Granata3 Organisation for the Prevention of Intense Suffering (OPIS), Geneva, Switzerland Organisation for the Prevention of Intense Suffering (OPIS), Geneva, Switzerland Schmerzzentrum Granata, Clinical, Zurich, Switzerland Schmerzzentrum Granata, Clinical, Zurich, SwitzerlandBackground Cluster headache is an excruciating condition for which standard treatments are usually insufficient. Evidence has accumulated that serotonergic psychedelic indoleamines including psilocybin and LSD can be effective in preventing attacks. Methods In this case series, nine patients with episodic and chronic cluster headache that didn’t respond to conventional treatments were treated at a clinic with psilocybin or LSD, under compassionate use provisions, and in most cases separately with ketamine. Results All patients responded positively to at least one of the treatments, and eight of nine responded positively to the treatment with the psychedelic indoleamines, in several cases with extended periods free of attacks. Conclusion These clinical data, though of an exploratory nature, add to the existing pool of evidence for the usefulness of these substances for treating cluster headache, and further support the lowering of legal and regulatory barriers to medical access to the psychedelic indoleamines.https://doi.org/10.1177/25158163251345472
spellingShingle Jonathan Leighton
Carmen Lau
Aisha Savdo
Livia Granata
Clinical treatment of cluster headache with the serotonergic indoleamine psychedelics psilocybin and LSD and with ketamine: A case series
Cephalalgia Reports
title Clinical treatment of cluster headache with the serotonergic indoleamine psychedelics psilocybin and LSD and with ketamine: A case series
title_full Clinical treatment of cluster headache with the serotonergic indoleamine psychedelics psilocybin and LSD and with ketamine: A case series
title_fullStr Clinical treatment of cluster headache with the serotonergic indoleamine psychedelics psilocybin and LSD and with ketamine: A case series
title_full_unstemmed Clinical treatment of cluster headache with the serotonergic indoleamine psychedelics psilocybin and LSD and with ketamine: A case series
title_short Clinical treatment of cluster headache with the serotonergic indoleamine psychedelics psilocybin and LSD and with ketamine: A case series
title_sort clinical treatment of cluster headache with the serotonergic indoleamine psychedelics psilocybin and lsd and with ketamine a case series
url https://doi.org/10.1177/25158163251345472
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