Lethargy after Albendazole in dogs

40 reports to the FDA describe lethargy in dogs given Albendazole. That is 29% of all reports for this medicine, compared with 11% across reports for all dog medicines, so it is reported unusually often with this medicine.

40Reports
13%Marked serious
0.0%Recovered
18%Died or euthanised
–Typical onset
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How the animals did

Still unwell when reported
2 5.0%
Died
7 18%
Not known
31 78%

Problems reported at the same time

Age of the animals

Under 1 year
9
1–3 years
15
4–7 years
5
8–11 years
3
12+ years
1

About this medicine

Type: medicine.

Questions owners ask

Can Albendazole cause lethargy in dogs?
40 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).

Lethargy with similar medicines

All reported side effects of Albendazole in dogs · Medicines most reported with lethargy