Abnormal posture after Famotidine in dogs

The FDA has received 22 reports of abnormal posture in dogs after Famotidine. That is 0.8% 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.

22Reports

82%Marked serious

36%Recovered

32%Died or euthanised

15 daysTypical onset

How soon it started

Same day

3 20%

1–2 days

2 13%

3–7 days

0 0.0%

1–4 weeks

5 33%

Over a month

5 33%

How the animals did

Recovered

8 36%

Still unwell when reported

3 14%

Died

4 18%

Euthanised

3 14%

Not known

4 18%

Problems reported at the same time

10 45%

10 45%

7 32%

7 32%

6 27%

6 27%

5 23%

5 23%

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 abnormal posture in dogs?: 22 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 15 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).

Abnormal posture with similar medicines

Abnormal posture after Melarsomine (Immiticide) 47 reports · 0.2% of its reports
Abnormal posture after Polysulfated Glycosaminoglycan 30 reports · 0.5% of its reports
Abnormal posture after Diphenhydramine 22 reports · 0.5% of its reports
Abnormal posture after Tramadol 39 reports · 1.0% of its reports
Abnormal posture after Chondroitin + Glucosamine 30 reports · 1.1% of its reports

All reported side effects of Famotidine in dogs · Medicines most reported with abnormal posture