Cimetidine (Tagamet) For Dogs: Dosage Chart By Weight

Cimetidine brand name Tagamet is a prescription medication typically used to treat stomach ulcers and acid reflux in dogs. It works by blocking histamine, which reduces the amount of acid in the dog’s gastrointestinal tract.

Tagamet is one of the brand names for generic cimetidine, and it is available in both tablet and liquid form.

The safe dosage of the medicine for canines will vary depending on the size and weight of the dog, and it is essential to follow the veterinarian’s instructions carefully.

Giving any medication in the wrong dose and wrong way may harm your pet badly.

This Article is an ultimate guide about Tagamet for dogs, its benefits, side effects, safe dosage, and safe serving ideas.

Tagamet For Dogs

Uses of Cimetidine For Dogs

  • Cimetidine Tagamet can be used to treat stomach ulcers and gastritis inflammation in dogs.
  • It can also treat dogs’ gastroesophageal reflux disease (GERD) and esophagitis.
  • It helps to reduce the production of stomach acid in dogs with liver disease.
  • Cimetidine Tagamet may also help manage some side effects of chemotherapy in dogs and for the treatment of mast cell tumors.

Dogs Escort Disclaimer: The information in this article should be used for guidance only. Always take your vet’s advice before giving any medicine to your pet. 

(Cimetidine) Tagamet Dosage For Dogs

The ideal dosage of (Tagamet®) Cimetidine for dogs is 5-10 mg/kg or 2-5 mg/lb every six to eight hours. However, the dose can be increased or decreased with the veterinarian’s advice.

The safe dosage of Tagamet liquid is 0.125-0.25 ml/kg, which means a 5 kg puppy can take 0.5ml of Cimetidine.

Tagamet liquid usually comes in a liquid syrup of 200mg/5ml equals 40mg/ml. For young puppies, this is best to use Cimetidine liquid.

The best way of administering Tagamet to your puppy is to give it 30 min before feeding.

The Cimetidine is usually supplied in 100 mg, 150mg, 200 mg 300mg and liquid 200 mg/5 ml.

Make sure to adopt the safe dosage for your dog if you are using any variant of the medication.

Cimetidine Tagamet Dosage Chart for Dogs

Weight of Dog kg (5-10 mg/kg)Dog Weight lbs (2-5 mg/lb)Cimetidine or (Tagamet) Dosage (Every 6-8 h)
2 kg4 lbs10-20 mg
5 kg11 lbs25-50 mg
10 kg22 lbs50-100 mg
15 kg33 lbs75-150 mg
20 kg44 lbs100-250 mg
25 kg55 lbs125-250 mg
30 kg66 lbs150-300 mg
35 kg77 lbs175-350 mg
40 kg88 lbs200-400 mg
45 kg99 lbs225-450 mg
Weight of DogTagamet 200mg DosageTagamet 400mg Dosage
10 kg1/4-1/2 Tablet1/8-1/4 Tablet
20 kg1/2-1 Tablet1/4-1/2 Tablet
30 kg1/2-1,1/2 Tablets1/3-1/2 Tablet
40 kg1-2 Tablets1/2-1 Tablet
50 kg1,1/4-2 Tablets1/2-1 Tablet

For safety purposes and to avoid any toxic effect, always start with the lower dose and then increase the dose if required. Remember not to forget a veterinarian’s advice. 

Side effects of Tagamet in dogs

The most common side effects of Tagamet in dogs include gastrointestinal upset, vomiting, diarrhea, hives, swelling, decreased appetite, difficulty breathing, increased urination, and increased thirst.

ill dog

Less common side effects can include panting, restlessness, and lethargy.

In rare cases, Tagamet can cause liver damage. If you notice any of these side effects in your dog, please contact your veterinarian immediately.

Mostly, these side effects are mild and will resolve on their own. However, if they persist or are severe, it is important to contact the veterinarian. Tagamet is generally well-tolerated by dogs.

Cimetidine For Dogs Vomiting

Cimetidine for dogs vomiting is a medication that is used to treat gastric ulcers, gastroesophageal reflux disease (GERD), and gastritis. It works by decreasing the amount of acid produced in the stomach.

Cimetidine is available in both oral tablets and injectable forms. For canine vomiting due to gastrointestinal issues, you can give the medication with your veterinarian’s advice only at a dose of 3 mg per pound body weight given orally two to three times daily.

Can I give cimetidine for dogs’ diarrhea?

No, cimetidine is not an anti-diarrheal medication and should not be given to a dog suffering from diarrhea. If your dog is vomiting and has diarrhea, it is important to seek veterinary care as soon as possible, as this can be a sign of a serious underlying condition.

There is certain anti-diarrheal medication such as Pro Pectalin for dogs and Endosorb For Dogs available that you can use for your canine friend.

Which dogs should not take Cimetidine?

Cimetidine should not be given to dogs with known hypersensitivity or allergy to the drug. Pregnant and nursing dogs should take medicine with the veterinarian’s advice only.

Additionally, cimetidine should be used cautiously in dogs with liver or kidney disease, as the drug may worsen these conditions.

As with any medication, always speak to your veterinarian before giving cimetidine (or any other drug) to your dog.

Which drugs interact with Cimetidine?

Cimetidine may interact with other medications, so it is important to tell your veterinarian about all drugs your dog is taking before starting treatment with Cimetidine. Some of the medications that may interact with Cimetidine include:

  • Warfarin-type anticoagulants
  • Phenytoin
  • Propranolol
  • Nifedipine
  • Chlordiazepoxide
  • Diazepam
  • Certain tricyclic Antidepressants
  • Lidocaine
  • Theophylline
  • Metronidazole
  • Other histamine H2 blockers (e.g., ranitidine, famotidine)

Tagamet overdosing in dogs

Overdosing of any medicine is toxic for canines and can lead them to severe health issues and can even be fatal. Tagamet overdosing in dogs can lead to the following side effects:

  • Diarrhea
  • Vomiting
  • Lethargy
  • Depression
  • Seizures
  • Coma
  • Death.

If you think your dog has overdosed on Tagamet, or if they are displaying any of these signs, please call your veterinarian immediately.

Leave a Comment

Your email address will not be published. Required fields are marked *