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Pet Medication 101: Zantac

can dogs take zantac

It’s important to understand a medication’s uses and side effects before giving it to your pet. This medication info sheet is meant to give you a good understanding of what Zantac (ranitidine) is used for, how it works, and potential side effects in cats and dogs. Always consult a veterinarian before giving your pet any medication.

1. Drug Name:


2. Brand Name:


3. How Dispensed:

On April 1, 2020, the FDA requested the removal of all ranitidine products from the market (over-the-counter and prescription) immediately due to a contaminant known as NDMA, a probable human carcinogen.

4. Forms:

75mg, 150mg, and 300mg tablets; 150mg and 300mg capsules; 15mg/mL syrup, 25mg/mL injectable solution

5. Drug Type/Class:

Histamine-2 blocker

6. Uses for Cats and Dogs:

Stomach ulcers, intestinal ulcers, stress-related gastritis, drug-induced gastritis, esophagitis, and esophageal reflux

7. How it Works:

Ranitidine decreases the amount of acid that is produced in the stomach by inhibiting the histamine-2 receptor. Decreasing the amount of acid in the stomach produces a more favorable environment to rest and heal.

8. Side Effects and/or Signs of Overdose:

Vomiting, diarrhea, irregular heartbeat, rapid breathing, muscle tremors, lack of coordination, light-headedness, fainting

9. Drug Interactions:

  • Cephalosporins
  • Ketoconazole
  • Itraconazole
  • Propantheline

10. Cautionary Statements:

  • Never give your pet Zantac without the approval of your veterinarian.
  • Use with caution in pets with kidney disease, liver disease, and heart rhythm abnormalities.
  • Use with caution in pregnant animals.
  • Should not be given to lactating animals.

Read more:

How to Give Your Dog Oral Medication

How to Give Your Cat Oral Medication

Everything You Need to Know About Vomiting in Dogs

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