After throwing up, the most important thing to take isn’t a medicine at all. It’s fluid. Vomiting depletes water, sodium, and potassium rapidly, and replacing those losses matters more than stopping nausea with a pill. That said, several over-the-counter options can help settle your stomach once you’re ready, and knowing the right timing makes a big difference in whether they stay down.
Wait Before Taking Anything
Your stomach needs a brief rest after vomiting. Wait 30 to 60 minutes after your last episode before trying to drink or take any medicine. Putting something in your stomach too soon often triggers another round of vomiting, which means you lose whatever you just took and get further dehydrated in the process.
When you’re ready, start with small sips of clear liquid rather than gulping a full glass. A few tablespoons every five to ten minutes lets your stomach adjust gradually. If that stays down for 15 to 20 minutes, you can slowly increase the amount.
Rehydration Comes First
Plain water replaces fluid but not the electrolytes you lost. Oral rehydration solutions are designed specifically for this situation. The WHO formula contains a precise balance of sodium, potassium, and glucose that helps your intestines absorb water more efficiently than water alone. You can buy premixed versions (like Pedialyte or store-brand equivalents) at any pharmacy, or you can mix a packet of oral rehydration salts into one liter of clean water.
If you don’t have a rehydration solution on hand, diluted juice, clear broth, or sports drinks can fill the gap temporarily. Full-strength sports drinks contain more sugar than the ideal rehydration formula, so diluting them roughly in half with water brings them closer to what your body needs. Avoid caffeinated drinks, alcohol, and very sugary sodas, all of which can worsen dehydration or irritate your stomach lining.
Over-the-Counter Options for Nausea
Once you can keep fluids down, a few OTC medicines can help if nausea lingers.
Bismuth subsalicylate (the active ingredient in Pepto-Bismol and Kaopectate) is FDA-approved for nausea, upset stomach, and indigestion. It works by reducing inflammation in your stomach lining, calming intestinal secretions, and promoting fluid reabsorption. The standard adult dose is 524 mg every 30 to 60 minutes as needed, up to about 4,200 mg in a day, for no more than two days. One important caution: bismuth subsalicylate contains a compound related to aspirin, so it should not be given to children or teenagers, especially during a viral illness, because of the risk of Reye’s syndrome, a rare but serious condition linked to aspirin use in young people.
Phosphorated carbohydrate solution (sold as Emetrol) is a simpler option that works by coating and calming the stomach. Adults take one to two tablespoons, repeated every 15 minutes until the nausea eases, up to five doses per hour. For the best effect, don’t dilute it or drink other fluids right before or after a dose.
Dimenhydrinate (Dramamine) and meclizine are antihistamines primarily designed for motion sickness, but they can help with general nausea too. They tend to cause drowsiness, which may actually be welcome if you’re trying to rest through a stomach bug.
Ginger as a Natural Alternative
Ginger has solid clinical evidence behind it for nausea relief. Most studies showing benefit used around 1,000 mg per day, typically split into smaller doses (250 mg four times daily, for instance). You can get this from ginger capsules sold in the supplement aisle, or from ginger chews and strong ginger tea, though capsules give you a more consistent dose.
The FDA considers up to 4 grams of ginger daily to be safe, though most people don’t need anywhere near that much. Side effects are uncommon and mild, usually limited to heartburn or belching. Ginger is also considered safe during pregnancy, where it’s one of the few well-studied options for morning sickness.
Prescription Anti-Nausea Medicine
If vomiting is severe or won’t stop, doctors sometimes prescribe a stronger anti-nausea medication that blocks the signals between your stomach and brain that trigger the vomiting reflex. These are commonly used after surgery, during chemotherapy, and for bad cases of stomach flu. Some versions dissolve on the tongue, which helps when you can’t keep a swallowed pill down. These require a prescription, so they’re worth asking about if OTC options aren’t cutting it or if you’ve been vomiting for more than 24 hours.
What to Avoid After Vomiting
If you have a headache or body aches alongside your nausea, reach for acetaminophen (Tylenol) rather than ibuprofen (Advil, Motrin) or naproxen (Aleve). NSAIDs like ibuprofen are well known for irritating the stomach lining, and on an already inflamed stomach, they can worsen nausea, cause additional pain, or in severe cases contribute to ulcers and internal bleeding. Acetaminophen is far gentler on the digestive tract.
Also avoid aspirin-containing products entirely for children and teenagers who are vomiting from a viral illness. Aspirin can appear in unexpected places, including products like Alka-Seltzer, so always check the label. Safer alternatives for fever or pain in kids are children’s acetaminophen or ibuprofen (ibuprofen is fine for children as a fever reducer when the stomach has settled, just not during active vomiting).
Signs You Need Emergency Care
Most vomiting from food poisoning or a stomach virus resolves within 12 to 48 hours. But certain warning signs mean the situation has become more serious:
- Severe dehydration: dry mouth, dizziness, very dark urine, or extreme thirst
- High fever with a stiff neck, confusion, or disorientation
- Severe abdominal pain with a rigid or bloated belly, which could signal a blockage
- Signs of infection: chills, rapid heart rate, or rapid breathing
- Blood in vomit or vomit that looks like coffee grounds
Vomiting that persists beyond 24 hours in adults, or that prevents you from keeping down even small sips of fluid for several hours, also warrants medical evaluation. Dehydration can escalate quickly, particularly in older adults and young children.