headache
headache was captured in 14 source papers (280/1193). Interpret this as a source-backed named-event summary, not a head-to-head safety comparison.
ClinicalTrials.gov adverse events: Headache 33/50 (66%) in Psilocybin.
25 mg Psilocybin N=160 | 5 mg Psilocybin N=72 | 100 mg Nicotinamide N=48; IES. Back pain 3 (2%) 3 (4%) 3 (6%) Any serious adverse event 1 (1%) 0 (0%) 0 (0%) Dosing Days +1 until +7 Any adverse event 86 (54%) 32 (44%) 14 (29%) Any severe adverse event 6 (4%) 1 (1%) 2 (4%) Adverse events occurring in ≥ 5% of participants in any group Headache 32 (20%) 10 (14%) 3 (6%) Asthenia/Fatigue 13 (8%) 2 (3%) 0 (0%) Abnormal dreams 10 (6%) 3 (4%) 0 (0%) Anxiety 6 (4%) 0 (0%) 1 (2%) Panic attack 7 (4%) 0 (0%)