Allergic reaction after Doxycycline in dogs

93 reports to the FDA describe allergic reaction in dogs given Doxycycline. That is 2.3% of all reports for this medicine, compared with 2.3% across reports for all dog medicines.

93Reports

63%Marked serious

26%Recovered

7.5%Died or euthanised

17 daysTypical onset

How soon it started

Same day

23 30%

1–2 days

3 3.9%

3–7 days

8 11%

1–4 weeks

8 11%

Over a month

34 45%

How the animals did

Recovered

23 25%

Recovered with lasting effects

1 1.1%

Still unwell when reported

38 41%

Died

5 5.4%

Euthanised

2 2.2%

Not known

24 26%

Problems reported at the same time

39 42%

30 32%

17 18%

17 18%

17 18%

15 16%

14 15%

Didn't prevent heartworm

11 12%

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 allergic reaction in dogs?: 93 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 17 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).

Allergic reaction with similar medicines

Allergic reaction after Amoxicillin + Clavulanate (Clavamox) 185 reports · 3.4% of its reports
Allergic reaction after Cefovecin (Convenia) 314 reports · 8.3% of its reports
Allergic reaction after Enrofloxacin (Baytril) 119 reports · 3.2% of its reports
Allergic reaction after Metronidazole 133 reports · 4.3% of its reports
Allergic reaction after Amoxicillin 45 reports · 3.3% of its reports

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