Weight loss after Distemper-parvo Vaccine in dogs

182 reports to the FDA describe weight loss in dogs given Distemper-parvo Vaccine. That is 2.8% of all reports for this medicine, compared with 1.7% across reports for all dog medicines, so it is reported unusually often with this medicine.

182Reports
75%Marked serious
12%Recovered
29%Died or euthanised
6 daysTypical onset
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How soon it started

Same day
26 16%
1–2 days
32 20%
3–7 days
31 19%
1–4 weeks
30 19%
Over a month
41 26%

How the animals did

Recovered
17 9.3%
Recovered with lasting effects
5 2.7%
Still unwell when reported
78 43%
Died
22 12%
Euthanised
31 17%
Not known
29 16%

Problems reported at the same time

Loss of appetite
116 64%
Lethargy
113 62%
Vomiting
94 52%
Diarrhea
57 31%
Liver problems
53 29%
Death
51 28%
Kidney problems
45 25%
Blood problems
43 24%

Age of the animals

Under 1 year
50
1–3 years
38
4–7 years
48
8–11 years
28
12+ years
17

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 weight loss in dogs?
182 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 6 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).

Weight loss with similar medicines

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