Weight gain after Tramadol in dogs

40 reports to the FDA describe weight gain in dogs given Tramadol. That is 1.1% of all reports for this medicine, compared with 0.6% across reports for all dog medicines, so it is reported unusually often with this medicine.

40Reports
65%Marked serious
18%Recovered
13%Died or euthanised
29 daysTypical onset
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How soon it started

Same day
0 0.0%
1–2 days
2 9.5%
3–7 days
2 9.5%
1–4 weeks
8 38%
Over a month
9 43%

How the animals did

Recovered
6 15%
Recovered with lasting effects
1 2.5%
Still unwell when reported
5 13%
Euthanised
5 13%
Not known
23 57%

Problems reported at the same time

Age of the animals

Under 1 year
2
1–3 years
9
4–7 years
8
8–11 years
15
12+ years
5

About this medicine

Type: medicine.

Questions owners ask

Can Tramadol cause weight gain in dogs?
40 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 29 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).

Weight gain with similar medicines

All reported side effects of Tramadol in dogs · Medicines most reported with weight gain