Seizures after Frunevetmab (Solensia) in cats

The FDA has received 221 reports of seizures in cats after Frunevetmab. That is 2.8% of all reports for this medicine, compared with 2.6% across reports for all cat medicines.

221Reports

100%Marked serious

18%Recovered

33%Died or euthanised

7 daysTypical onset

How soon it started

Same day

53 26%

1–2 days

27 13%

3–7 days

36 18%

1–4 weeks

48 23%

Over a month

41 20%

How the animals did

Recovered

38 17%

Recovered with lasting effects

1 0.5%

Still unwell when reported

98 44%

Died

22 10.0%

Euthanised

50 23%

Not known

12 5.4%

Problems reported at the same time

72 33%

22 10.0%

21 9.5%

21 9.5%

20 9.0%

20 9.0%

20 9.0%

18 8.1%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

176

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 seizures in cats?: 221 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 7 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 seizures