Didn't stop worms after Prednisone in dogs

The FDA has received 92 reports of didn't stop worms in dogs after Prednisone. That is 1.0% of all reports for this medicine, compared with 8.4% across reports for all dog medicines, so it is reported less often than average with this medicine.

92Reports

32%Marked serious

8.7%Recovered

2.2%Died or euthanised

99 daysTypical onset

How soon it started

Same day

2 3.9%

1–2 days

0 0.0%

3–7 days

3 5.9%

1–4 weeks

9 18%

Over a month

37 73%

How the animals did

Recovered

4 4.3%

Recovered with lasting effects

4 4.3%

Still unwell when reported

20 22%

Died

2 2.2%

Not known

62 67%

Problems reported at the same time

Didn't work as expected

27 29%

Diarrhea

14 15%

Didn't prevent heartworm

9 9.8%

7 7.6%

7 7.6%

6 6.5%

5 5.4%

4 4.3%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

About this medicine

Prednisone reduces inflammation and immune activity.

Steroids commonly cause increased thirst, urination and appetite, especially at higher doses.

Questions owners ask

Can Prednisone cause didn't stop worms in dogs?: 92 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 99 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).

All reported side effects of Prednisone in dogs · Medicines most reported with didn't stop worms