Loss of appetite after Tramadol in dogs

The FDA has received 1,040 reports of loss of appetite in dogs after Tramadol. That is 28% of all reports for this medicine, compared with 8.4% across reports for all dog medicines, so it is reported unusually often with this medicine.

1,040Reports
61%Marked serious
22%Recovered
27%Died or euthanised
11 daysTypical onset
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How soon it started

Same day
97 12%
1–2 days
106 13%
3–7 days
137 17%
1–4 weeks
205 26%
Over a month
252 32%

How the animals did

Recovered
213 20%
Recovered with lasting effects
15 1.4%
Still unwell when reported
383 37%
Died
74 7.1%
Euthanised
207 20%
Not known
148 14%

Problems reported at the same time

Age of the animals

Under 1 year
15
1–3 years
87
4–7 years
257
8–11 years
396
12+ years
275

About this medicine

Type: medicine.

Questions owners ask

Can Tramadol cause loss of appetite in dogs?
1,040 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 11 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).

Loss of appetite with similar medicines

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