Lethargy after Tylosin in dogs

78 reports to the FDA describe lethargy in dogs given Tylosin. That is 12% of all reports for this medicine, compared with 11% across reports for all dog medicines.

78Reports
40%Marked serious
36%Recovered
15%Died or euthanised
43 daysTypical onset
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How soon it started

Same day
8 17%
1–2 days
4 8.7%
3–7 days
4 8.7%
1–4 weeks
5 11%
Over a month
25 54%

How the animals did

Recovered
22 28%
Recovered with lasting effects
6 7.7%
Still unwell when reported
14 18%
Died
7 9.0%
Euthanised
5 6.4%
Not known
24 31%

Problems reported at the same time

Age of the animals

Under 1 year
12
1–3 years
11
4–7 years
18
8–11 years
21
12+ years
16

About this medicine

Type: medicine.

Questions owners ask

Can Tylosin cause lethargy in dogs?
78 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 43 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).

Lethargy with similar medicines

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