Vitamin B side effects in dogs

62 reports sent to the FDA between 2012 and 2026 involve Vitamin B in dogs. The most reported problems were loss of appetite, vomiting, lethargy. 79% were marked serious.

62Reports
79%Marked serious
1.6%Only medicine involved
11%Recovered
32%Died or euthanised
SponsoredWorried about your pet? Ask a veterinarian online, 24/7

About this medicine

Type: medicine.

Most reported side effects

20 32%
Lethargy
17 27%
Diarrhea
16 26%
Liver problems
13 21%
Kidney problems
10 16%
Blood problems
10 16%
Leucocytosis
9 15%
Weight loss
7 11%
Weakness
6 9.7%
Hyperglycaemia
5 8.1%
Wobbliness (ataxia)
5 8.1%
Drooling
4 6.5%
Not drinking
4 6.5%
Cough
4 6.5%

Share = percentage of this medicine's reports that mention the problem. One report can list several problems.

Reports that it didn't work

Some reports are about the medicine not working (for example a dog still getting fleas or heartworm), not about a side effect.

Didn't work as expected
8 13%
Didn't stop fleas
1 1.6%

How soon problems started

Same day
11 21%
1–2 days
5 9.6%
3–7 days
8 15%
1–4 weeks
12 23%
Over a month
16 31%

Time from the first dose to the first sign, where both dates were reported (52 reports).

How the animals did

Recovered
6 9.7%
Recovered with lasting effects
1 1.6%
Still unwell when reported
25 40%
Died
7 11%
Euthanised
13 21%
Not known
10 16%

Breeds named most often

Popular breeds appear more often because there are more of them.

Other medicines for dogs