cat b12 injection side effects Vital Role of for FIP Cats Butaphosphan + Vitamin B12 Injection

Because the cypionate ester permits a lower injection frequency, hormonal peaks are blunted, which may reduce the incidence of estrogen-related headaches and cyclic mastalgia observed with short-acting formulations, although inter-individual variation remains and careful titration is still recommended to optimize benefit-risk balance

For a subcutaneous injection into the fatty tissue just under the skin, a much shorter and thinner needle is used

Sublingual forms are designed to let some B12 be absorbed through the tissue under your tongue rather than through the gut

I was having a significant problem with my bowels (nausea mostly) and stomach aches, and day long headaches