Decreased haemoglobin after Gabapentin in dogs

49 reports to the FDA describe decreased haemoglobin in dogs given Gabapentin. That is 0.5% 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.

49Reports

76%Marked serious

14%Recovered

31%Died or euthanised

27 daysTypical onset

How soon it started

Same day

4 11%

1–2 days

4 11%

3–7 days

4 11%

1–4 weeks

8 22%

Over a month

17 46%

How the animals did

Recovered

6 12%

Recovered with lasting effects

1 2.0%

Still unwell when reported

13 27%

Died

1 2.0%

Euthanised

14 29%

Not known

14 29%

Problems reported at the same time

28 57%

23 47%

22 45%

21 43%

20 41%

Decreased red blood cell count

18 37%

Vomiting

17 35%

Decreased haematocrit

16 33%

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 decreased haemoglobin in dogs?: 49 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 27 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).

Decreased haemoglobin with similar medicines

Decreased haemoglobin after Trazodone 20 reports · 0.8% of its reports

All reported side effects of Gabapentin in dogs · Medicines most reported with decreased haemoglobin