Vomiting after Heartgard in dogs

57 reports to the FDA describe vomiting in dogs given Heartgard. That is 15% of all reports for this medicine, compared with 28% across reports for all dog medicines, so it is reported less often than average with this medicine.

57Reports
60%Marked serious
47%Recovered
11%Died or euthanised
4 daysTypical onset
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How soon it started

Same day
18 43%
1–2 days
3 7.1%
3–7 days
3 7.1%
1–4 weeks
8 19%
Over a month
10 24%

How the animals did

Recovered
27 47%
Still unwell when reported
16 28%
Died
1 1.8%
Euthanised
5 8.8%
Not known
8 14%

Problems reported at the same time

Death
6 11%
Kidney problems
5 8.8%
Itching
3 5.3%
Breathing problems
3 5.3%

Age of the animals

Under 1 year
4
1–3 years
11
4–7 years
17
8–11 years
12
12+ years
11

About this medicine

Type: medicine.

Questions owners ask

Can Heartgard cause vomiting in dogs?
57 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 4 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).

Vomiting with similar medicines

All reported side effects of Heartgard in dogs · Medicines most reported with vomiting