Hair loss after Trazodone in dogs

The FDA has received 37 reports of hair loss in dogs after Trazodone. That is 1.5% of all reports for this medicine, compared with 1.0% across reports for all dog medicines.

37Reports

59%Marked serious

27%Recovered

5.4%Died or euthanised

35 daysTypical onset

How soon it started

Same day

3 12%

1–2 days

2 7.7%

3–7 days

4 15%

1–4 weeks

1 3.8%

Over a month

16 62%

How the animals did

Recovered

10 27%

Still unwell when reported

14 38%

Euthanised

2 5.4%

Not known

11 30%

Problems reported at the same time

Itching

12 32%

Skin rash or irritation

11 30%

Skin redness

9 24%

Injection site reaction

8 22%

Swelling

7 19%

Vomiting

7 19%

Loss of appetite

6 16%

Didn't work as expected

6 16%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

About this medicine

Trazodone reduces anxiety and stress.

Questions owners ask

Can Trazodone cause hair loss in dogs?: 37 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 35 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).

Hair loss with similar medicines

Hair loss after Gabapentin 151 reports · 1.7% of its reports
Hair loss after Selegiline (Anipryl) 39 reports · 0.9% of its reports

All reported side effects of Trazodone in dogs · Medicines most reported with hair loss