Breathing problems after Fluoxetine in dogs

114 reports to the FDA describe breathing problems in dogs given Fluoxetine. That is 4.4% of all reports for this medicine, compared with 2.7% across reports for all dog medicines, so it is reported unusually often with this medicine.

114Reports

56%Marked serious

24%Recovered

18%Died or euthanised

26 daysTypical onset

How soon it started

Same day

19 25%

1–2 days

3 3.9%

3–7 days

4 5.3%

1–4 weeks

15 20%

Over a month

35 46%

How the animals did

Recovered

21 18%

Recovered with lasting effects

6 5.3%

Still unwell when reported

34 30%

Died

8 7.0%

Euthanised

13 11%

Not known

32 28%

Problems reported at the same time

42 37%

36 32%

32 28%

28 25%

26 23%

21 18%

Restlessness or agitation

21 18%

Didn't work as expected

18 16%

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 breathing problems in dogs?: 114 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 26 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).

Breathing problems with similar medicines

Breathing problems after Gabapentin 861 reports · 9.5% of its reports
Breathing problems after Selegiline (Anipryl) 78 reports · 1.9% of its reports
Breathing problems after Trazodone 203 reports · 8.0% of its reports
Breathing problems after Clomipramine (Clomicalm) 36 reports · 2.4% of its reports

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