Diarrhea after Doxycycline in dogs

301 reports to the FDA describe diarrhea in dogs given Doxycycline. That is 7.5% of all reports for this medicine, compared with 8.4% across reports for all dog medicines.

301Reports

66%Marked serious

14%Recovered

26%Died or euthanised

24 daysTypical onset

How soon it started

Same day

37 15%

1–2 days

30 12%

3–7 days

29 11%

1–4 weeks

49 19%

Over a month

110 43%

How the animals did

Recovered

39 13%

Recovered with lasting effects

4 1.3%

Still unwell when reported

121 40%

Died

30 10.0%

Euthanised

47 16%

Not known

60 20%

Problems reported at the same time

180 60%

136 45%

124 41%

93 31%

86 29%

76 25%

57 19%

45 15%

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 diarrhea in dogs?: 301 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 24 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).

Diarrhea with similar medicines

Diarrhea after Amoxicillin + Clavulanate (Clavamox) 505 reports · 9.4% of its reports
Diarrhea after Cefovecin (Convenia) 377 reports · 9.9% of its reports
Diarrhea after Enrofloxacin (Baytril) 365 reports · 9.7% of its reports
Diarrhea after Metronidazole 1,114 reports · 36% of its reports
Diarrhea after Amoxicillin 177 reports · 13% of its reports

All reported side effects of Doxycycline in dogs · Medicines most reported with diarrhea