Underdose after Distemper-parvo Vaccine in dogs

The FDA has received 47 reports of underdose in dogs after Distemper-parvo Vaccine. That is 0.7% of all reports for this medicine, compared with 1.0% across reports for all dog medicines.

47Reports

64%Marked serious

30%Recovered

19%Died or euthanised

2 daysTypical onset

How soon it started

Same day

13 41%

1–2 days

4 13%

3–7 days

1 3.1%

1–4 weeks

8 25%

Over a month

6 19%

How the animals did

Recovered

14 30%

Still unwell when reported

17 36%

Died

6 13%

Euthanised

3 6.4%

Not known

7 15%

Problems reported at the same time

Vomiting

14 30%

Didn't work as expected

11 23%

10 21%

8 17%

8 17%

7 15%

7 15%

5 11%

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 underdose in dogs?: 47 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 2 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).

Underdose with similar medicines

Underdose after Rabies Vaccine 51 reports · 0.5% of its reports
Underdose after Bordetella Vaccine 54 reports · 0.6% of its reports
Underdose after Leptospirosis Vaccine 41 reports · 0.5% of its reports
Underdose after Lyme Vaccine 46 reports · 0.7% of its reports

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