Hair loss after Distemper-parvo Vaccine in dogs

The FDA has received 66 reports of hair loss in dogs after Distemper-parvo Vaccine. That is 1.0% of all reports for this medicine, compared with 1.0% across reports for all dog medicines.

66Reports

55%Marked serious

20%Recovered

9.1%Died or euthanised

14 daysTypical onset

How soon it started

Same day

6 11%

1–2 days

10 19%

3–7 days

4 7.4%

1–4 weeks

16 30%

Over a month

18 33%

How the animals did

Recovered

13 20%

Still unwell when reported

27 41%

Died

2 3.0%

Euthanised

4 6.1%

Not known

20 30%

Problems reported at the same time

Itching

29 44%

Skin rash or irritation

19 29%

18 27%

14 21%

12 18%

12 18%

12 18%

11 17%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

About this medicine

Type: vaccine.

Mild, short-lived lethargy, soreness or a small lump at the injection site are the most commonly reported vaccine reactions.

Questions owners ask

Can Distemper-parvo Vaccine cause hair loss in dogs?: 66 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 14 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 Rabies Vaccine 163 reports · 1.6% of its reports
Hair loss after Bordetella Vaccine 116 reports · 1.2% of its reports
Hair loss after Leptospirosis Vaccine 107 reports · 1.3% of its reports
Hair loss after Lyme Vaccine 28 reports · 0.4% of its reports

All reported side effects of Distemper-parvo Vaccine in dogs · Medicines most reported with hair loss