Blood in vomit after Doxycycline in dogs

23 reports to the FDA describe blood in vomit in dogs given Doxycycline. That is 0.6% of all reports for this medicine, compared with 0.4% across reports for all dog medicines.

23Reports

78%Marked serious

8.7%Recovered

35%Died or euthanised

24 daysTypical onset

How soon it started

Same day

2 10%

1–2 days

1 5.0%

3–7 days

2 10%

1–4 weeks

7 35%

Over a month

8 40%

How the animals did

Recovered

2 8.7%

Still unwell when reported

12 52%

Died

6 26%

Euthanised

2 8.7%

Not known

1 4.3%

Problems reported at the same time

12 52%

12 52%

9 39%

8 35%

8 35%

6 26%

6 26%

6 26%

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 blood in vomit in dogs?: 23 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).

Blood in vomit with similar medicines

Blood in vomit after Amoxicillin + Clavulanate (Clavamox) 52 reports · 1.0% of its reports
Blood in vomit after Cefovecin (Convenia) 31 reports · 0.8% of its reports
Blood in vomit after Enrofloxacin (Baytril) 29 reports · 0.8% of its reports
Blood in vomit after Metronidazole 61 reports · 2.0% of its reports

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