Vitamin B12 can interact with medications such as colchicine (a medicine used to treat gout), metformin (an anti-diabetic agent), excessive alcohol, vitamin C products, extended release potassium products, antibiotics such as gentamicin, neomycin, tobramycin, anti-seizure medications such as phenobarbital, phenytoin, primidone, medicines used to treat heartburn like H2 blockers such as cimetidine and proton pump inhibitors such as omeprazole, antacids such as ranitidine, cimetidine
Each batch comes with a Certificate of Analysis (COA) to ensure quality, purity, and reproducibility in controlled experimental environments
B12 injection benefits people report most often include better energy and less fatigue
These symptoms often correlate with other gastrointestinal effects and may be particularly noticeable after meals due to delayed gastric emptying