Diarrhea after Fluoxetine in dogs

193 reports to the FDA describe diarrhea in dogs given Fluoxetine. That is 7.5% of all reports for this medicine, compared with 8.4% across reports for all dog medicines.

193Reports

32%Marked serious

36%Recovered

4.1%Died or euthanised

20 daysTypical onset

How soon it started

Same day

29 26%

1–2 days

10 8.8%

3–7 days

8 7.1%

1–4 weeks

15 13%

Over a month

51 45%

How the animals did

Recovered

60 31%

Recovered with lasting effects

9 4.7%

Still unwell when reported

42 22%

Died

2 1.0%

Euthanised

6 3.1%

Not known

74 38%

Problems reported at the same time

90 47%

69 36%

50 26%

24 12%

16 8.3%

Didn't work as expected

16 8.3%

Breathing problems

13 6.7%

Weight loss

12 6.2%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

About this medicine

Fluoxetine treats anxiety and behaviour problems.

Questions owners ask

Can Fluoxetine cause diarrhea in dogs?: 193 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 20 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).

Diarrhea with similar medicines

Diarrhea after Gabapentin 1,270 reports · 14% of its reports
Diarrhea after Selegiline (Anipryl) 374 reports · 9.1% of its reports
Diarrhea after Trazodone 360 reports · 14% of its reports
Diarrhea after Clomipramine (Clomicalm) 138 reports · 9.1% of its reports

All reported side effects of Fluoxetine in dogs · Medicines most reported with diarrhea