Didn't prevent heartworm after Buprenorphine in dogs

28 reports to the FDA describe didn't prevent heartworm in dogs given Buprenorphine. That is 1.8% of all reports for this medicine, compared with 13% across reports for all dog medicines, so it is reported less often than average with this medicine.

28Reports

50%Marked serious

11%Recovered

3.6%Died or euthanised

273 daysTypical onset

How soon it started

Same day

0 0.0%

1–2 days

1 6.3%

3–7 days

0 0.0%

1–4 weeks

1 6.3%

Over a month

14 88%

How the animals did

Recovered

3 11%

Still unwell when reported

9 32%

Died

1 3.6%

Not known

15 54%

Problems reported at the same time

5 18%

4 14%

4 14%

4 14%

4 14%

Weight gain

3 11%

Breathing problems

3 11%

Liver problems

3 11%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

About this medicine

Buprenorphine pain relief (an opioid).

Questions owners ask

Can Buprenorphine cause didn't prevent heartworm in dogs?: 28 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 273 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 Buprenorphine in dogs · Medicines most reported with didn't prevent heartworm