Yes, you can give a dog Pepcid (famotidine) for vomiting, but only under veterinary guidance and with the correct dosage
Can I give my dog antacid for vomiting?
Yes, antacids like famotidine (Pepcid) and omeprazole may help dogs with bilious vomiting
These meds often get prescribed when dogs vomit bile in the morning from an empty stomach. Famotidine works by cutting stomach acid, which can ease irritation that triggers vomiting. (Honestly, this is one of the gentler ways to help.) But here’s the thing—always run it by your vet first. Long-term use without supervision can mask problems like ulcers that need proper treatment. If you're unsure about dosing, check out our guide on how much Pepcid to give a 10 lb dog.
What can you give a dog that is vomiting?
Start tiny—about 1 to 2 tablespoons per 10 pounds of body weight—once your dog’s gone 12 hours without hurling. This bland combo is gentle enough to settle things down. Skip the butter, spices, or fatty scraps, though. They’ll just make matters worse. If the vomiting drags on past 24 hours or your dog acts weak, gets diarrhea, or seems off in any other way, call your vet right away—the ASPCA Animal Poison Control Center says to seek help if it’s still happening after a day.
What happens if a dog eats Pepcid?
Most dogs tolerate Pepcid (famotidine) well, but overdose symptoms may include vomiting, restlessness, and redness of the mouth and ears
Famotidine blocks stomach acid by acting as an H2 receptor antagonist. At normal doses it’s pretty safe, but too much can cause tummy upset or worse. Stick to what your vet prescribes. If you think you’ve given too much, ring your vet or the ASPCA Animal Poison Control Center at (888) 426-4435.
How quickly does Pepcid work in dogs?
Pepcid typically begins to work within 1 to 2 hours after administration
Peak levels in the bloodstream hit around 1–3 hours, so you won’t see instant changes in your dog’s mood. Still, the drug’s already busy lowering stomach acid. A single dose can keep working up to 24 hours. If your dog keeps vomiting or seems nauseated after a full day of treatment, get them checked—something else is likely going on.
Can dogs take 20mg Pepcid?
The 20mg tablet usually suits medium to large pups. For example, a 50–100 pound dog might get 10–20mg twice daily, depending on how bad the vomiting is. Never wing it with a 20mg dose. Too much can cause diarrhea or sluggishness. Give it on an empty stomach so it absorbs properly. You can learn more about proper dosing in our article on how much Pepcid AC to give a dog.
What settles a dog’s stomach?
A bland diet of boiled chicken and rice is one of the safest and most effective ways to settle a dog’s stomach
This combo is low-fat and easy to digest—perfect for mild belly upsets. You can stir in a spoon of plain pumpkin puree (not pie filling) to add fiber and calm things down. Skip dairy, spicy foods, and greasy meats. If your dog keeps vomiting, gets diarrhea, or won’t eat, make that vet appointment—VCA Hospitals stress vet guidance.
What anti nausea medication can dogs take?
Veterinarians may prescribe Metoclopramide, Cerenia (maropitant), or famotidine (Pepcid) for nausea in dogs
Cerenia is FDA-approved for dogs and handles both vomiting and motion sickness like a champ. Metoclopramide speeds food through the stomach, easing queasiness. Famotidine lowers acid and often gets paired with other anti-nausea drugs. Some owners try Pepto-Bismol for mild cases, but only with the vet’s okay. Never give human motion-sickness pills like Dramamine without checking first—they’re not safe for pups.
Can I give a dog antacid?
You should never give your dog antacid without explicit veterinary dosage instructions
Antacids like famotidine and omeprazole are common in vet med, but dosing changes wildly based on size, breed, and health. The American Kennel Club cautions that wrong amounts can hide serious issues like ulcers. Always get the green light—and the exact dose—from your vet before starting any antacid.
Can dogs take Pepto-Bismol pills?
Pepto-Bismol can be safe for dogs in liquid or chewable form when used appropriately, but consult your vet first
Pepto-Bismol’s bismuth subsalicylate soothes stomachs and calms inflammation. It may help mild diarrhea or upset. But don’t even think about giving it to cats, and avoid it in dogs with ulcers, bleeding disorders, or aspirin sensitivity. A rough guideline is 1 teaspoon per 10 pounds every 6–8 hours, but always double-check with your vet. Watch for black stools—that’s a red flag.
Can you crush Pepcid for dogs?
Do not crush Pepcid tablets or capsules—administer them whole to ensure accurate dosing
Breaking tablets leads to uneven doses and can make the med taste awful. If your dog turns up their nose, ask your vet about flavored chewables or tricks for pilling. Some pharmacies can flavor meds to make them more palatable. Never stir crushed pills into food unless your vet confirms it’s okay for that specific drug.
How much Pepcid can a 70 pound dog take?
A 70-pound dog can take 17.5 to 35mg of famotidine every 12 to 24 hours
That’s based on the standard vet dose of 0.25 to 0.5mg per pound, twice daily. For a 70-pound dog that means 17.5mg (half of a 20mg tablet) up to 35mg (one full 20mg tablet) per dose. Split it and space it 12 hours apart. Give it on an empty stomach for best results. Run the exact dose by your vet, especially if your dog has kidney issues or other health concerns.
Can you give famotidine to dogs with food?
Famotidine should not be given with food—it works best on an empty stomach, ideally 30 to 60 minutes before meals
Food slows famotidine’s absorption, so it won’t work as well. Giving it an hour before feeding lets it kick in before the meal hits. Famotidine’s used off-label in dogs, so dosing should always come from your vet.
Can dogs take Pepcid and Benadryl together?
Yes, dogs can safely take Pepcid (famotidine) and Benadryl (diphenhydramine) together under veterinary supervision
They tackle different issues—stomach upset versus allergies or mild anxiety. Still, don’t combine them without your vet’s say-so, especially if your dog’s on other meds. Human pain relievers like Tylenol or Advil are toxic to dogs and should never be used.
Can you give a dog too much Pepcid?
While famotidine has a wide safety margin, giving too much can still cause side effects like fatigue, vomiting, diarrhea, or abnormal heart rate
Signs of overdose may include tiredness, drooling, or even collapse. Serious toxicity is rare, but if you suspect an overdose, call your vet or a pet poison control center right away. Reach the ASPCA Animal Poison Control Center at (888) 426-4435. Keep the bottle out of paw’s reach.
Why is my dog throwing up but acting normal?
If your dog is vomiting but otherwise acting normally, it may be due to mild stomach upset, dietary indiscretion, or an empty stomach
Common culprits include scarfing food too fast, nibbling grass, or having a sensitive tummy. Still, repeated vomiting—even if your dog seems fine—deserves a vet visit. The AKC points out that ongoing vomiting can point to inflammatory bowel disease, parasites, or food allergies. Your vet may run bloodwork or imaging to figure it out.
What can I give my dog for nausea at home?
A bland diet of boiled chicken and plain white rice is a safe home remedy for mild nausea in dogs
Start with small, frequent meals every few hours instead of one big bowl. Offer ice chips or tiny sips of water to keep them hydrated. Avoid rich, fatty, or spicy foods. If nausea drags on past 24 hours or your dog starts vomiting, getting diarrhea, or acting tired, get them to the vet. Home care only works for mild, short-lived queasiness.
Why is my dog vomiting bile?
Vomiting bile in dogs is often a sign of an empty stomach or gastrointestinal irritation, but it can also indicate more serious conditions
Yellow bile usually means the stomach’s empty and the bile is irritating the lining. That can happen in dogs who skip meals or have bilious vomiting syndrome. But if it keeps happening, it might signal inflammatory bowel disease, ulcers, parasites, or even cancer. Persistent bile vomiting needs a vet visit—your vet may run tests like bloodwork or ultrasound to find the cause. If your dog has been vomiting frequently, you might also want to explore how much yogurt to give a dog with diarrhea as a supportive remedy.
Edited and fact-checked by the FixAnswer editorial team.
