Didn't prevent heartworm after Unspecified in dogs

23 reports to the FDA describe didn't prevent heartworm in dogs given Unspecified. That is 8.8% of all reports for this medicine, compared with 13% across reports for all dog medicines.

23Reports
8.7%Marked serious
4.3%Recovered
0.0%Died or euthanised
–Typical onset
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How the animals did

Recovered
1 4.3%
Still unwell when reported
5 22%
Not known
17 74%

Problems reported at the same time

Skin rash or irritation
2 8.7%
Unclassifiable adverse event
2 8.7%
Breathing problems
1 4.3%
Fever
1 4.3%
Ocular discharge
1 4.3%
Overdose
1 4.3%

Age of the animals

Under 1 year
0
1–3 years
9
4–7 years
9
8–11 years
5
12+ years
0

About this medicine

Type: medicine.

Questions owners ask

Can Unspecified cause didn't prevent heartworm in dogs?
23 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.
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).

Didn't prevent heartworm with similar medicines

All reported side effects of Unspecified in dogs · Medicines most reported with didn't prevent heartworm