Abnormal menace reflex test after Carprofen (Rimadyl) in dogs

The FDA has received 59 reports of abnormal menace reflex test in dogs after Carprofen. That is 0.1% of all reports for this medicine, compared with 0.1% across reports for all dog medicines, so it is reported unusually often with this medicine.

59Reports
86%Marked serious
15%Recovered
41%Died or euthanised
6 daysTypical onset
SponsoredWorried about your pet? Ask a veterinarian online, 24/7

How soon it started

Same day
9 22%
1–2 days
6 15%
3–7 days
8 20%
1–4 weeks
6 15%
Over a month
12 29%

How the animals did

Recovered
5 8.5%
Recovered with lasting effects
4 6.8%
Still unwell when reported
22 37%
Died
6 10%
Euthanised
18 31%
Not known
4 6.8%

Problems reported at the same time

Age of the animals

Under 1 year
6
1–3 years
7
4–7 years
9
8–11 years
19
12+ years
18

About this medicine

Carprofen relieves pain and inflammation from arthritis or after surgery.

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

NSAIDs can affect the stomach, liver and kidneys. Vets usually recommend blood tests before and during long-term use.

Questions owners ask

Can Carprofen cause abnormal menace reflex test in dogs?
59 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 6 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 Carprofen in dogs · Medicines most reported with abnormal menace reflex test