Kidney problems after Doxycycline in cats

The FDA has received 29 reports of kidney problems in cats after Doxycycline. That is 11% of all reports for this medicine, compared with 4.5% across reports for all cat medicines, so it is reported unusually often with this medicine.

29Reports

86%Marked serious

0.0%Recovered

66%Died or euthanised

7 daysTypical onset

How soon it started

Same day

2 9.5%

1–2 days

2 9.5%

3–7 days

7 33%

1–4 weeks

6 29%

Over a month

4 19%

How the animals did

Still unwell when reported

6 21%

Died

4 14%

Euthanised

15 52%

Not known

4 14%

Problems reported at the same time

19 66%

19 66%

19 66%

11 38%

10 34%

8 28%

Abnormal ultrasound finding

8 28%

Didn't work as expected

5 17%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

About this medicine

Doxycycline treats bacterial and tick-borne infections.

Questions owners ask

Can Doxycycline cause kidney problems in cats?: 29 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 7 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).

Kidney problems with similar medicines

Kidney problems after Cefovecin (Convenia) 761 reports · 8.8% of its reports
Kidney problems after Amoxicillin + Clavulanate (Clavamox) 171 reports · 7.2% of its reports
Kidney problems after Enrofloxacin (Baytril) 114 reports · 7.2% of its reports
Kidney problems after Amoxicillin 30 reports · 5.8% of its reports
Kidney problems after Metronidazole 30 reports · 7.7% of its reports

All reported side effects of Doxycycline in cats · Medicines most reported with kidney problems