b12 injections potassium Cyanocobalamin Vitamin Injection 1000 mcg — Mountainside Medical CYANOCOBALAMIN INJECTION, USP 10,000mcg/10mL (1,000mcg/mL)
Description
Thread about Patient Safety, has useful links for those in UK having difficult health experiences with b12 deficiency

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Meta-analysis of folic acid efficacy trials in stroke prevention: Insight into effect modifiers
However, injections are more effective for people who cannot absorb B12 through their stomach

Notably, most interactions of arginine are pharmacodynamic rather than pharmacokinetic
