Itching after Frunevetmab (Solensia) in cats

The FDA has received 1,696 reports of itching in cats after Frunevetmab. That is 21% of all reports for this medicine, compared with 8.9% across reports for all cat medicines, so it is reported unusually often with this medicine.

1,696Reports

67%Marked serious

12%Recovered

2.4%Died or euthanised

12 daysTypical onset

How soon it started

Same day

266 17%

1–2 days

185 12%

3–7 days

256 16%

1–4 weeks

482 30%

Over a month

409 26%

How the animals did

Recovered

206 12%

Still unwell when reported

1,291 76%

Died

10 0.6%

Euthanised

30 1.8%

Not known

159 9.4%

Problems reported at the same time

Skin scab

531 31%

Skin rash or irritation

459 27%

Hair loss

454 27%

Didn't work as expected

112 6.6%

91 5.4%

85 5.0%

84 5.0%

83 4.9%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

354

12+ years

1,166

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 itching in cats?: 1,696 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 12 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 itching