Inappropriate urination after Gabapentin in dogs

The FDA has received 216 reports of inappropriate urination in dogs after Gabapentin. That is 2.4% of all reports for this medicine, compared with 0.5% across reports for all dog medicines, so it is reported unusually often with this medicine.

216Reports

71%Marked serious

6.0%Recovered

27%Died or euthanised

24 daysTypical onset

How soon it started

Same day

22 13%

1–2 days

24 15%

3–7 days

15 9.1%

1–4 weeks

32 19%

Over a month

72 44%

How the animals did

Recovered

13 6.0%

Still unwell when reported

112 52%

Died

19 8.8%

Euthanised

39 18%

Not known

33 15%

Problems reported at the same time

75 35%

57 26%

51 24%

44 20%

41 19%

41 19%

Urinary tract infection

41 19%

Lethargy

40 19%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

119

About this medicine

Gabapentin used for pain and to reduce stress or anxiety.

Questions owners ask

Can Gabapentin cause inappropriate urination in dogs?: 216 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 24 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).

Inappropriate urination with similar medicines

Inappropriate urination after Fluoxetine 27 reports · 1.0% of its reports
Inappropriate urination after Trazodone 50 reports · 2.0% of its reports

All reported side effects of Gabapentin in dogs · Medicines most reported with inappropriate urination