Every December, the "hangover cure" pills, patches, and powders come out in force. Here is the honest headline you will not see on their packaging: the best hangover cure is drinking less in the first place. No supplement removes the alcohol you already drank, and the most rigorous review of the evidence found nothing good enough to recommend. Hydration and time do the real work; a few supplements might ease specific symptoms a little, but the evidence is thin and the marketing is not. This guide lays out what the research actually says, what is worth a modest try, and, importantly, the signs that a "bad hangover" is really something dangerous.
The short version
- No pill reliably prevents or cures a hangover. The best review found only very low-quality evidence.
- The only sure things are drinking less, hydration, food, and time.
- A few options (prickly pear, Korean pear) helped slightly, but only when taken before drinking.
- DHM is popular online but the human evidence is weak; electrolytes rehydrate but do not "cure."
- Do not mix acetaminophen (Tylenol) with alcohol, and know the signs of alcohol poisoning.
What a hangover actually is
A hangover is the body's aftermath of alcohol, and it is not one problem but several stacked together: dehydration, a toxic byproduct called acetaldehyde, low-grade inflammation, disrupted sleep, low blood sugar, and stomach irritation all hitting at once. That matters because no single supplement addresses all of them, and none of them undo the fact that you drank. It is also worth stating plainly that heavy and binge drinking are genuine health risks, and moderation is the only intervention that reliably works. See a doctor if you show signs of alcohol poisoning or feel you rely on alcohol.
The honest truth about hangover cures
The most rigorous look at this question, a systematic review published in the journal Addiction in 2022 that pooled 21 placebo-controlled trials across nearly 400 people, reached a blunt conclusion: there is only very low-quality evidence to recommend any supplement or remedy for preventing or treating a hangover, and no positive result has been independently replicated. Keep that ceiling in mind for everything that follows. When you see a product promise to let you "drink without consequences," it is making a claim the science does not support. The options below are, at best, minor comfort measures with thin evidence, not cures.
What might help a little (with honest grades)
| Option | Evidence | What the research shows | When |
|---|---|---|---|
| Prickly pear (Opuntia) | Limited | One trial found a modest drop in nausea and a few symptoms | Before drinking |
| Korean pear juice | Limited | Lowered acetaldehyde in a small study; depends on genetics | Before drinking |
| Ginger | Limited (indirect) | Good for nausea generally, not tested for hangover itself | For queasiness |
| Electrolytes + B-vitamins | Rationale only | Replace fluid and salts; sensible, not a proven cure | During/after |
| NAC (N-acetylcysteine) | Limited/Preclinical | Theory only; a trial found no clear hangover benefit | Unproven |
| DHM (dihydromyricetin) | Preclinical | Popular online; human study found no significant effect | Unproven |
DHM deserves special mention because it is everywhere online, yet its human evidence is genuinely weak, with a controlled human study finding no significant effect on hangover severity. The prickly pear result is the most interesting, but note it only helped a few symptoms and only when taken before drinking. Ginger is worth it if nausea is your main problem, and B-vitamins plus electrolytes make sense for rehydration, just not as a "cure." NAC has a theoretical acetaldehyde angle but thin, largely negative human data. For the wider picture of how alcohol and supplements interact, see our guide to supplements and alcohol.
What to skip or actively avoid
- Branded "hangover" pills, gummies, and patches. These oversell hard, and patches in particular have essentially no supporting evidence. Nothing neutralizes alcohol.
- Acetaminophen (Tylenol) with alcohol. This is a real safety rule, not a preference: the combination can stress the liver, especially with regular heavy drinking. For a hangover headache, hydration and time are safer, and a pharmacist can advise on pain relief.
- "Hair of the dog." More alcohol just delays the hangover and adds risk. It is a myth.
Hangover versus alcohol poisoning
This is the most important section. A hangover is miserable but self-limited; alcohol poisoning is a medical emergency. Call emergency services for someone who has confusion or cannot be woken, vomiting that will not stop, slow or irregular breathing, blue-tinged or cold skin, or seizures. Do not assume they just need to "sleep it off." Separately, if you find yourself needing alcohol to function, unable to cut back despite trying, or drinking despite it causing harm, those are signs of alcohol dependence, and a doctor can genuinely help.
Frequently asked questions
What is the best cure for a hangover?
Time, water, and drinking less next time. Your liver clears alcohol at its own pace, so rest, fluids, food, and patience are the only reliable fixes. No supplement removes the alcohol you already drank, and the best systematic review found only very low-quality evidence for any hangover remedy, with none good enough to recommend.
Does DHM (dihydromyricetin) work for hangovers?
The hype outruns the evidence. DHM is hugely popular online and looks interesting in animal studies, but the limited human data show no clear benefit for hangover severity, including a controlled human study that found no significant effect. It is not a proven hangover cure.
Will electrolytes cure my hangover?
Electrolytes and water help you rehydrate, which can make you feel somewhat better, but they do not undo the acetaldehyde and inflammation that drive a hangover. They are a sensible comfort measure, not a cure, and they work best alongside simply drinking less in the first place.
Should I take hangover supplements before or after drinking?
The few studies showing any benefit, such as prickly pear and Korean pear, dosed before drinking, not the morning after. Even then the effect was modest and limited to a few symptoms. Nothing reliably rescues you once the hangover has arrived, so prevention through moderation beats any morning-after pill.
Can I take Tylenol for a hangover headache?
Be cautious. Combining acetaminophen (Tylenol or paracetamol) with alcohol can stress the liver, especially with regular or heavy drinking. For a hangover headache, prioritize water, food, and rest, and ask a pharmacist about safer pain-relief options if you need them.
Is hair of the dog a good idea?
No. Drinking more alcohol just delays the hangover and adds more alcohol for your body to process, along with more risk. It is a myth, not a remedy. The only things that genuinely help are rehydrating, eating, resting, and giving your body time to recover.
The bottom line
Hangover supplements are the clearest case in this whole category of marketing outrunning evidence. The most rigorous review found nothing good enough to recommend, and the only reliable levers are drinking less, staying hydrated, eating, and giving your body time. A few options like prickly pear or ginger might take a small edge off, mostly if taken before drinking, but none is a cure, DHM's online fame is not matched by human data, and no product lets you skip the consequences. Skip the hangover pills, never mix acetaminophen with alcohol, and above all, learn the difference between a rough morning and alcohol poisoning, because that knowledge is the one thing here that can save a life.