Psychedelics + Lithium
Psychedelics + Lithium: the short answerPeople taking lithium for bipolar disorder have a documented elevated risk of seizures when using LSD, psilocybin, and other classic psychedelics — one of the clearest medication interactions in psychedelic safety. This combination should be avoided.
Why it’s dangerous
Lithium affects neuronal signaling and electrolyte balance in ways that can make the brain more electrically excitable; combined with the serotonergic stimulation of classic psychedelics, multiple case reports describe seizures and prolonged, difficult reactions. The risk appears specific to lithium (not all mood stabilizers) and has been seen in people with no prior seizure history.
What happens
- Seizures, including in people with no epilepsy history
- Prolonged, unusually intense, or dysphoric experiences
- Confusion and disorientation lasting beyond the expected duration
Warning signs
- Convulsions or loss of consciousness
- Extreme agitation or delirium
- Symptoms that persist long after the trip should have ended
What to do
- Call emergency services for any seizure or prolonged severe reaction
- Do not use classic psychedelics while taking lithium — including 'microdoses'
- Never stop lithium abruptly in order to trip; any medication change needs the prescriber involved
- If you have bipolar disorder, independent of lithium, psychedelics carry additional mania-psychosis risks worth discussing with a clinician