Dehydration after Gabapentin in cats

74 reports to the FDA describe dehydration in cats given Gabapentin. That is 3.8% of all reports for this medicine, compared with 2.0% across reports for all cat medicines, so it is reported unusually often with this medicine.

74Reports

89%Marked serious

8.1%Recovered

39%Died or euthanised

5 daysTypical onset

How soon it started

Same day

14 22%

1–2 days

12 18%

3–7 days

11 17%

1–4 weeks

9 14%

Over a month

19 29%

How the animals did

Recovered

6 8.1%

Still unwell when reported

25 34%

Died

7 9.5%

Euthanised

22 30%

Not known

14 19%

Problems reported at the same time

57 77%

42 57%

29 39%

28 38%

27 36%

25 34%

24 32%

22 30%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

About this medicine

Gabapentin used for pain and to reduce stress or anxiety.

Questions owners ask

Can Gabapentin cause dehydration in cats?: 74 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 5 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).

All reported side effects of Gabapentin in cats · Medicines most reported with dehydration