B12 is Thunderbird’s single-ingredient Vitamin B12 tablet, built entirely around Cyanocobalamin.
What Is Actually In It
B12 has a single active ingredient: Cyanocobalamin, the synthetic form of Vitamin B12, at 100 mcg per tablet. That figure is transcribed exactly as Thunderbird states it, with no conversion or rounding.
What the Label Says It Is For
Thunderbird’s label states B12 promotes red blood cell synthesis, maintains nervous system integrity, and enhances blood circulation, and that it supports cell reproduction, hematopoiesis, nucleoprotein and myelin synthesis. That is the manufacturer’s own claim, reproduced above.
Forms It Comes In
B12 is sold as a tablet. No dosage instructions were legible on the source used for this page, so none is published here. That gap is stated plainly rather than estimated.
Withdrawal Period
No withdrawal period is published for B12. Absence of a published figure is not the same as a zero-day withdrawal, and it is not treated as one here.
What This Page Does Not Tell You
This page transcribes what Thunderbird publishes about B12. It does not tell a reader whether a bird is actually B12-deficient or anemic, which usually needs bloodwork or a veterinarian’s assessment. Take that question to a veterinarian, an agrivet, or the local agriculture office.
Frequently Asked Questions
What is in B12?
Cyanocobalamin, the synthetic form of Vitamin B12, at 100 mcg per tablet. It is the only active ingredient.
What is the dosage for B12?
Not published. No dosage figure could be confirmed from the available source.
How long is the withdrawal period for B12?
No withdrawal period is published.