Why there is no hangover cure
A hangover is not one problem. Alcohol disrupts sleep, irritates the stomach, increases urine output, triggers immune signaling and leaves behind acetaldehyde as it is broken down. A single remedy would have to fix all of that at once, and nothing has been shown to.
A 2005 systematic review in the BMJ looked at every randomized trial it could find and concluded that no compelling evidence exists that any conventional or complementary intervention prevents or treats hangover. A 2022 review in Addiction covered 21 placebo-controlled trials with 386 people in total. No two trials tested the same thing, and every result was rated very low quality. For the full picture of what science says about a hangover cure, see our main guide.
Sources: Pittler et al., 2005: Interventions for preventing or treating hangover; Roberts et al., 2022: Pharmacologically active hangover interventions; Swift & Davidson, 1998: Alcohol hangover, mechanisms and mediators
