Drooling after Vitamin B12 in cats

The FDA has received 26 reports of drooling in cats after Vitamin B12. That is 6.7% of all reports for this medicine, compared with 5.6% across reports for all cat medicines.

26Reports
62%Marked serious
15%Recovered
35%Died or euthanised
3 daysTypical onset
SponsoredWorried about your pet? Ask a veterinarian online, 24/7

How soon it started

Same day
8 33%
1–2 days
4 17%
3–7 days
2 8.3%
1–4 weeks
5 21%
Over a month
5 21%

How the animals did

Recovered
4 15%
Still unwell when reported
6 23%
Died
3 12%
Euthanised
6 23%
Not known
7 27%

Problems reported at the same time

Age of the animals

Under 1 year
1
1–3 years
0
4–7 years
6
8–11 years
4
12+ years
15

About this medicine

Type: medicine.

Questions owners ask

Can Vitamin B12 cause drooling in cats?
26 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 3 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).

Drooling with similar medicines

All reported side effects of Vitamin B12 in cats · Medicines most reported with drooling