Didn't work as expected after Frunevetmab (Solensia) in cats

1,025 reports to the FDA describe didn't work as expected in cats given Frunevetmab. That is 13% of all reports for this medicine, compared with 8.7% across reports for all cat medicines.

1,025Reports

42%Marked serious

3.3%Recovered

5.3%Died or euthanised

21 daysTypical onset

How soon it started

Same day

147 17%

1–2 days

33 3.7%

3–7 days

50 5.7%

1–4 weeks

307 35%

Over a month

346 39%

How the animals did

Recovered

34 3.3%

Still unwell when reported

784 76%

Died

15 1.5%

Euthanised

39 3.8%

Not known

153 15%

Problems reported at the same time

Itching

112 11%

Loss of appetite

87 8.5%

Skin rash or irritation

74 7.2%

73 7.1%

72 7.0%

66 6.4%

61 6.0%

59 5.8%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

155

12+ years

741

About this medicine

Frunevetmab reduces osteoarthritis pain in cats (monthly injection).

Products with this ingredient include Solensia. The FDA hides brand names in its public data, so these reports cover every product with the same active ingredients.

Questions owners ask

Can Frunevetmab cause didn't work as expected in cats?: 1,025 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 21 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 Frunevetmab in cats · Medicines most reported with didn't work as expected