Didn't stop fleas after Lokivetmab (Cytopoint) in dogs

The FDA has received 34 reports of didn't stop fleas in dogs after Lokivetmab. That is 0.5% of all reports for this medicine, compared with 6.2% across reports for all dog medicines, so it is reported less often than average with this medicine.

34Reports

12%Marked serious

2.9%Recovered

0.0%Died or euthanised

97 daysTypical onset

How soon it started

Same day

4 17%

1–2 days

2 8.3%

3–7 days

1 4.2%

1–4 weeks

1 4.2%

Over a month

16 67%

How the animals did

Recovered with lasting effects

1 2.9%

Still unwell when reported

21 62%

Not known

12 35%

Problems reported at the same time

Itching

6 18%

Didn't work as expected

2 5.9%

Licking

2 5.9%

Skin rash or irritation

1 2.9%

Skin irritation

1 2.9%

Fever

1 2.9%

Breathing problems

1 2.9%

Welt

1 2.9%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

About this medicine

Lokivetmab controls allergic itch for 4–8 weeks per injection.

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

Questions owners ask

Can Lokivetmab cause didn't stop fleas in dogs?: 34 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 97 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 Lokivetmab in dogs · Medicines most reported with didn't stop fleas