No single medicine cures a hangover, but several over-the-counter options can target specific symptoms like headache, nausea, heartburn, and dehydration. The key is matching the right medication to the symptom that’s bothering you most, and avoiding one common pain reliever that can cause serious harm after drinking.
For Headache: Choose the Right Pain Reliever
Ibuprofen (Advil), aspirin, and naproxen (Aleve) are all reasonable choices for a hangover headache. They reduce inflammation and work within about 30 minutes. Take them with food if your stomach is already irritated, since all three can aggravate an empty or inflamed stomach lining.
The one pain reliever to avoid is acetaminophen (Tylenol). The combination of alcohol and acetaminophen can seriously damage your liver. This also applies to combination products like Excedrin, which contains acetaminophen alongside other ingredients. Your liver is already working hard to process the alcohol. Adding acetaminophen forces it to handle a second toxic byproduct at the same time, and the result can be genuine liver injury. Stick with ibuprofen or naproxen instead.
For Nausea and Upset Stomach
Bismuth subsalicylate (Pepto-Bismol) is the most accessible option for hangover nausea. It forms a protective coating over the lining of your stomach and esophagus, shielding irritated tissue from stomach acid. This eases both nausea and that burning discomfort in your upper abdomen. It won’t speed up alcohol metabolism, but it can make the next few hours considerably more bearable.
Keep in mind that alcohol causes your stomach to produce more acid than normal. Bismuth subsalicylate helps with the symptoms of that excess acid, but it doesn’t stop the overproduction itself. If nausea is your primary problem, small sips of clear fluids alongside the medication tend to work better than trying to eat a full meal right away.
For Heartburn and Acid Reflux
If your hangover leans more toward burning in your chest or throat than general nausea, an acid reducer is a better fit. Famotidine (Pepcid) is an H2 blocker that reduces the amount of acid your stomach makes, and it starts working within 15 to 30 minutes. Standard antacids like calcium carbonate (Tums) neutralize acid that’s already there and provide even faster but shorter-lived relief.
Proton pump inhibitors like omeprazole (Prilosec) also reduce stomach acid, but they take one to four days of regular use to reach full effect. They’re designed for ongoing acid problems, not a single rough morning. For quick, one-time relief after drinking, famotidine or a basic antacid is the better choice.
Rehydration: More Effective Than Plain Water
Alcohol is a diuretic, meaning it makes your kidneys flush out more fluid than you’re taking in. Much of the fatigue, dizziness, and brain fog of a hangover comes from this fluid and electrolyte loss. Drinking plain water helps, but an oral rehydration solution like Pedialyte works faster because of its specific ratio of sugar and sodium. That balance pulls fluid into your bloodstream more efficiently than water alone, and the sodium helps your kidneys hold onto the fluid instead of flushing it right back out.
Sports drinks like Gatorade fall somewhere in between. They contain electrolytes but also more sugar than optimal for rehydration. If Pedialyte isn’t available, diluting a sports drink with water or simply adding a pinch of salt to water with a small amount of juice gets you closer to the right balance.
Supplements and “Hangover Cures”
The supplement market is flooded with products claiming to prevent or cure hangovers, and the evidence behind nearly all of them is thin. A review from King’s College London found that while some hangover supplements showed small improvements in certain symptoms, all the evidence was of very low quality, with methodological problems and no results that had been independently replicated. No two studies even tested the same remedy.
One ingredient with a bit more data behind it is L-cysteine, an amino acid. A study published in Alcohol and Alcoholism found that 1,200 mg of L-cysteine in a vitamin supplement reduced hangover-related nausea and headache, while a lower dose of 600 mg helped with stress and anxiety symptoms. L-cysteine is a building block for glutathione, your body’s main antioxidant, which gets depleted when your liver processes alcohol. The related compound NAC (N-acetylcysteine) works through the same pathway, boosting glutathione production and acting as a direct antioxidant. However, animal research has shown a catch: NAC appears protective when taken before alcohol exposure, but may act as a pro-oxidant and worsen liver stress when taken afterward. The timing matters, and human research on this is still limited.
In 2020, the FDA sent warning letters to seven companies selling hangover products with claims to cure, treat, or prevent hangovers. The agency’s position is clear: these products have not been evaluated for safety, effectiveness, proper dosage, or drug interactions. If a supplement claims it will cure your hangover, that claim has no regulatory backing.
What Actually Works Best
The most effective approach combines a few simple strategies rather than relying on a single pill. An anti-inflammatory like ibuprofen handles the headache. An electrolyte drink addresses dehydration faster than water. Bismuth subsalicylate or famotidine manages whatever your stomach is doing. And eating something bland gives your body the glucose and nutrients it needs to finish processing the remaining alcohol byproducts.
Timing matters too. Taking ibuprofen when you first wake up with symptoms is straightforward and safe, provided you have some food in your stomach. Starting to rehydrate before bed, ideally with something containing electrolytes, can reduce the severity of symptoms you wake up with. The hangover itself typically peaks when your blood alcohol level hits zero, which for most people is somewhere between 12 and 24 hours after their last drink, depending on how much they consumed. Until your liver finishes clearing the toxic byproducts of alcohol metabolism, no medicine will eliminate the hangover entirely. These medications just make the wait a lot more comfortable.