Hair loss after Bedinvetmab (Librela) in dogs

The FDA has received 291 reports of hair loss in dogs after Bedinvetmab. That is 1.5% of all reports for this medicine, compared with 1.0% across reports for all dog medicines.

291Reports

58%Marked serious

5.2%Recovered

8.9%Died or euthanised

17 daysTypical onset

How soon it started

Same day

40 16%

1–2 days

28 11%

3–7 days

33 13%

1–4 weeks

67 27%

Over a month

82 33%

How the animals did

Recovered

15 5.2%

Still unwell when reported

212 73%

Died

11 3.8%

Euthanised

15 5.2%

Not known

38 13%

Problems reported at the same time

Skin rash or irritation

73 25%

66 23%

45 15%

40 14%

35 12%

Didn't work as expected

33 11%

Vomiting

29 10.0%

Lethargy

28 9.6%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

115

12+ years

138

About this medicine

Bedinvetmab reduces osteoarthritis pain in dogs (monthly injection).

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

Questions owners ask

Can Bedinvetmab cause hair loss in dogs?: 291 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 17 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).

Hair loss with similar medicines

Hair loss after Lokivetmab (Cytopoint) 172 reports · 2.6% of its reports

All reported side effects of Bedinvetmab in dogs · Medicines most reported with hair loss