Lethargy after Ciprofloxacin Hcl in dogs

The FDA has received 24 reports of lethargy in dogs after Ciprofloxacin Hcl. That is 28% of all reports for this medicine, compared with 11% across reports for all dog medicines, so it is reported unusually often with this medicine.

24Reports
71%Marked serious
0.0%Recovered
42%Died or euthanised
8 daysTypical onset
SponsoredWorried about your pet? Ask a veterinarian online, 24/7

How soon it started

Same day
5 23%
1–2 days
2 9.1%
3–7 days
4 18%
1–4 weeks
6 27%
Over a month
5 23%

How the animals did

Still unwell when reported
14 58%
Euthanised
10 42%

Problems reported at the same time

11 46%
Death
10 42%
Blood problems
8 33%
Abnormal ultrasound finding
6 25%
Diarrhea
6 25%
Leucocytosis
5 21%

Age of the animals

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

About this medicine

Type: medicine.

Questions owners ask

Can Ciprofloxacin Hcl cause lethargy in dogs?
24 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 8 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 Ciprofloxacin Hcl in dogs · Medicines most reported with lethargy