Cluster-busting
A patient community term for using sub-psychedelic doses of psilocybin or LSD to abort or prevent cluster headache attacks. The practice was documented and shared online since the 1990s, formalised by the Clusterbusters patient advocacy organisation, and subsequently verified in a 2015 survey (Schindler et al., Journal of Psychoactive Drugs) showing 50–80% of cluster headache patients who tried psychedelics reported benefit — often at sub-hallucinogenic doses. This patient-led observation drove Yale's formal clinical investigation.
Full Explanation
Cluster-busting is a patient community term for using sub-psychedelic doses of psilocybin or LSD to abort or prevent cluster headache attacks. The practice was documented and shared online since the 1990s, formalised by the Clusterbusters patient advocacy organisation, and subsequently verified in a 2015 survey (Schindler et al., Journal of Psychoactive Drugs) showing 50–80% of cluster headache patients who tried psychedelics reported benefit — often at sub-hallucinogenic doses. This patient-led observation drove Yale's formal clinical investigation.
See: Cluster Headaches (/conditions/cluster-headaches).
Why It Matters
Cluster-busting illustrates how patient-led discovery preceded and motivated formal research on psilocybin for cluster headache.
Explore More Terms
Psilocybin
A naturally occurring psychedelic compound found in certain mushrooms that produces altered states of consciousness.
Psilocin
The pharmacologically active compound that psilocybin converts to in the body, responsible for psychedelic effects.
Ego Death
A temporary dissolution of the sense of self during a psychedelic experience, often described as profound and transformative.
Set and Setting
The combination of mindset (set) and environment (setting) that shapes a psychedelic experience.
Microdosing
Taking sub-perceptual doses of psilocybin on a regular schedule for subtle cognitive and emotional benefits.
Mycelium
The vegetative part of a fungus, consisting of a network of fine white filaments that eventually produces mushrooms.