Bruising after Famotidine in dogs

The FDA has received 53 reports of bruising in dogs after Famotidine. That is 2.0% of all reports for this medicine, compared with 0.1% across reports for all dog medicines, so it is reported unusually often with this medicine.

53Reports
57%Marked serious
19%Recovered
25%Died or euthanised
4 daysTypical onset
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How soon it started

Same day
5 11%
1–2 days
9 20%
3–7 days
11 25%
1–4 weeks
15 34%
Over a month
4 9.1%

How the animals did

Recovered
9 17%
Recovered with lasting effects
1 1.9%
Still unwell when reported
17 32%
Died
3 5.7%
Euthanised
10 19%
Not known
13 25%

Problems reported at the same time

Age of the animals

Under 1 year
4
1–3 years
11
4–7 years
14
8–11 years
15
12+ years
8

About this medicine

Type: medicine.

Questions owners ask

Can Famotidine cause bruising in dogs?
53 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 4 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).

Bruising with similar medicines

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