Appetite loss after Famotidine in dogs

25 reports to the FDA describe appetite loss in dogs given Famotidine. That is 0.9% of all reports for this medicine, compared with 0.3% across reports for all dog medicines, so it is reported unusually often with this medicine.

25Reports

68%Marked serious

24%Recovered

28%Died or euthanised

7 daysTypical onset

How soon it started

Same day

2 12%

1–2 days

5 29%

3–7 days

3 18%

1–4 weeks

2 12%

Over a month

5 29%

How the animals did

Recovered

6 24%

Still unwell when reported

6 24%

Died

1 4.0%

Euthanised

6 24%

Not known

6 24%

Problems reported at the same time

16 64%

13 52%

9 36%

8 32%

7 28%

7 28%

6 24%

6 24%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

About this medicine

Type: medicine.

Questions owners ask

Can Famotidine cause appetite loss in dogs?: 25 reports link the two, but a report alone does not prove the medicine was the cause: other illnesses, other medicines or coincidence can be involved. Your vet can judge it for your animal.
How soon after a dose was it reported?: In half of the reports with dates, it started within 7 days of the first dose.
What should I do?: Don't give another dose until you've spoken to your vet, and keep the packaging so you can tell them the product and dose. Your vet can also report it to the FDA (or you can, through the manufacturer or FDA form 1932a).

Appetite loss with similar medicines

Appetite loss after Melarsomine (Immiticide) 24 reports · 0.1% of its reports
Appetite loss after Polysulfated Glycosaminoglycan 51 reports · 0.9% of its reports
Appetite loss after Diphenhydramine 28 reports · 0.6% of its reports
Appetite loss after Tramadol 30 reports · 0.8% of its reports
Appetite loss after Florfenicol + Mometasone + Terbinafine 26 reports · 0.7% of its reports

All reported side effects of Famotidine in dogs · Medicines most reported with appetite loss