Hyperphosphataemia after Furosemide in dogs

The FDA has received 44 reports of hyperphosphataemia in dogs after Furosemide. That is 2.9% of all reports for this medicine, compared with 0.6% across reports for all dog medicines, so it is reported unusually often with this medicine.

44Reports

89%Marked serious

2.3%Recovered

61%Died or euthanised

26 daysTypical onset

How soon it started

Same day

3 8.6%

1–2 days

8 23%

3–7 days

2 5.7%

1–4 weeks

6 17%

Over a month

16 46%

How the animals did

Recovered

1 2.3%

Still unwell when reported

10 23%

Died

12 27%

Euthanised

15 34%

Not known

6 14%

Problems reported at the same time

42 95%

32 73%

31 70%

29 66%

27 61%

20 45%

18 41%

17 39%

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 Furosemide cause hyperphosphataemia in dogs?: 44 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 26 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).

Hyperphosphataemia with similar medicines

Hyperphosphataemia after Melarsomine (Immiticide) 139 reports · 0.6% of its reports
Hyperphosphataemia after Polysulfated Glycosaminoglycan 68 reports · 1.2% of its reports
Hyperphosphataemia after Diphenhydramine 77 reports · 1.6% of its reports
Hyperphosphataemia after Butorphanol 59 reports · 1.3% of its reports
Hyperphosphataemia after Cefpodoxime 65 reports · 1.6% of its reports
Hyperphosphataemia after Tramadol 127 reports · 3.4% of its reports
Hyperphosphataemia after Desoxycorticosterone Pivalate 71 reports · 2.1% of its reports
Hyperphosphataemia after Propofol 50 reports · 1.6% of its reports
Hyperphosphataemia after Dirlotapide 20 reports · 0.7% of its reports
Hyperphosphataemia after Isoflurane 64 reports · 2.3% of its reports

All reported side effects of Furosemide in dogs · Medicines most reported with hyperphosphataemia