Weight loss after Vitamin B12 in cats
The FDA has received 72 reports of weight loss in cats after Vitamin B12. That is 19% of all reports for this medicine, compared with 4.6% across reports for all cat medicines, so it is reported unusually often with this medicine.
72Reports
71%Marked serious
6.9%Recovered
29%Died or euthanised
7 daysTypical onset
How soon it started
How the animals did
Problems reported at the same time
Age of the animals
About this medicine
Type: medicine.
Questions owners ask
- Can Vitamin B12 cause weight loss in cats?
- 72 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).
Weight loss with similar medicines
- Weight loss after Ketamine 64 reports · 2.0% of its reports
- Weight loss after Butorphanol 86 reports · 3.8% of its reports
- Weight loss after Isoflurane 76 reports · 3.7% of its reports
- Weight loss after Methylprednisolone 161 reports · 10% of its reports
- Weight loss after Propofol 41 reports · 3.5% of its reports
- Weight loss after Atipamezole 20 reports · 1.9% of its reports
- Weight loss after Midazolam 21 reports · 2.8% of its reports
- Weight loss after Florfenicol + Mometasone + Terbinafine 51 reports · 7.3% of its reports
- Weight loss after Orbifloxacin 36 reports · 5.3% of its reports
- Weight loss after Molidustat 73 reports · 12% of its reports
All reported side effects of Vitamin B12 in cats · Medicines most reported with weight loss
