Famotidine, commonly known by its brand name Pepcid, is an over-the-counter medication often used in dogs to reduce stomach acid. It is typically prescribed for conditions such as acid reflux, stomach ulcers, and gastritis. While famotidine is primarily used in humans, it is generally considered safe for dogs under veterinary supervision. Below is a dosage chart and important guidelines for administering famotidine to dogs.
Dosage Chart for Famotidine in Dogs
| Dog’s Weight | Famotidine Dose (mg) | Frequency |
|---|---|---|
| 5 – 20 lbs | 2.5 – 5 mg | Every 12-24 hours |
| 20 – 60 lbs | 5 – 10 mg | Every 12-24 hours |
| 60 – 120 lbs | 10 – 20 mg | Every 12-24 hours |
Note: The chart provides a general guideline, but the exact dose should always be confirmed with your veterinarian. Famotidine is typically administered once or twice daily, depending on the condition being treated.
How to Calculate the Right Dose
- Typical dosage: The recommended dosage for dogs is 0.25 to 0.5 mg per pound of body weight, given every 12 to 24 hours.
For example:
- A 30-pound dog would typically require 7.5 mg to 15 mg per dose, which can be split into a 5 mg or 10 mg tablet.
When Is Famotidine Prescribed for Dogs?
- Acid Reflux: To reduce stomach acid and prevent acid from moving into the esophagus.
- Stomach Ulcers: For the treatment of ulcers caused by the overproduction of stomach acid.
- Gastritis: To soothe irritation or inflammation of the stomach lining.
- Pancreatitis: To help alleviate gastrointestinal distress related to this condition.
Administration Tips
- Empty Stomach: Famotidine works best when given on an empty stomach, typically 30 minutes to an hour before meals.
- Tablet Form: Famotidine is usually available in 10 mg or 20 mg tablets, making it easy to split or adjust dosages according to your dog’s size.
- Consistency: Administer famotidine at the same time(s) every day for the best results.
Safety and Side Effects
- Generally Well-Tolerated: Famotidine is considered safe for most dogs, but like all medications, it can have side effects in some cases. The most common side effects are:
- Decreased appetite
- Diarrhea
- Fatigue
- Allergic reactions (rare)
- Drug Interactions: Famotidine may interact with other medications your dog is taking, including antacids and certain antibiotics. Always inform your veterinarian about other treatments your dog is receiving.
When to Avoid Famotidine
- Kidney or Liver Disease: If your dog has a history of kidney or liver disease, your veterinarian might adjust the dosage or recommend an alternative treatment.
- Pregnancy and Nursing: The safety of famotidine for pregnant or nursing dogs is not well established, so consult your vet before administering it.
Conclusion
Famotidine is a helpful medication for treating stomach acid-related conditions in dogs. The dosage should be carefully calculated based on your dog’s weight and administered as recommended by a veterinarian. Always consult with a vet before giving your dog any medication, even over-the-counter drugs like famotidine, to ensure it is the right course of treatment for your pet’s specific health needs.
