Hallucinogen use is linked to a small increase in heart valve disease risk, with stronger associations in women and no clear evidence of severe dysfunction

Hallucinogen use is associated with a modest increase in the likelihood of clinician-diagnosed valvular heart disease, based on analysis of a large US survey dataset. The signal appears stronger in women, while severe valve dysfunction was not clearly elevated in the available echocardiogram subset. The findings come from cross-sectional NHANES data and compare adults who reported ever using hallucinogens with those who did not. Researchers adjusted for several demographic and health factors, but the design cannot establish causation and does not identify which specific hallucinogens, doses, or patterns of use may drive the association. Serotonin 5-HT2B receptor activity is a plausible biological mechanism because some drugs that activate this receptor have been linked to valvular damage. The results point to a potential cardiovascular safety signal that warrants more targeted longitudinal research rather than proving that hallucinogens directly cause valve disease.