Abnormal radiograph finding after Fentanyl in dogs

34 reports to the FDA describe abnormal radiograph finding in dogs given Fentanyl. That is 5.4% of all reports for this medicine, compared with 0.9% across reports for all dog medicines, so it is reported unusually often with this medicine.

34Reports

97%Marked serious

5.9%Recovered

71%Died or euthanised

25 daysTypical onset

How soon it started

Same day

2 7.7%

1–2 days

5 19%

3–7 days

3 12%

1–4 weeks

5 19%

Over a month

11 42%

How the animals did

Recovered

2 5.9%

Still unwell when reported

7 21%

Died

5 15%

Euthanised

19 56%

Not known

1 2.9%

Problems reported at the same time

24 71%

21 62%

21 62%

19 56%

19 56%

16 47%

16 47%

13 38%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

About this medicine

Type: medicine.

Questions owners ask

Can Fentanyl cause abnormal radiograph finding in dogs?: 34 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 25 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).

Abnormal radiograph finding with similar medicines

Abnormal radiograph finding after Melarsomine (Immiticide) 344 reports · 1.5% of its reports
Abnormal radiograph finding after Polysulfated Glycosaminoglycan 155 reports · 2.8% of its reports
Abnormal radiograph finding after Diphenhydramine 149 reports · 3.2% of its reports
Abnormal radiograph finding after Butorphanol 138 reports · 3.1% of its reports
Abnormal radiograph finding after Cefpodoxime 120 reports · 3.0% of its reports
Abnormal radiograph finding after Tramadol 201 reports · 5.3% of its reports
Abnormal radiograph finding after Florfenicol + Mometasone + Terbinafine 31 reports · 0.9% of its reports
Abnormal radiograph finding after Desoxycorticosterone Pivalate 49 reports · 1.5% of its reports
Abnormal radiograph finding after Propofol 75 reports · 2.4% of its reports
Abnormal radiograph finding after Dirlotapide 28 reports · 1.0% of its reports

All reported side effects of Fentanyl in dogs · Medicines most reported with abnormal radiograph finding