Cyanocobalamin : Synthetic form, requires conversion to active B12, longer shelf life, lower cost Methylcobalamin : Bioactive form, immediate utilization, preferred for neurological symptoms, more expensive Hydroxocobalamin: Used for cyanide poisoning, longest-acting Standard dose: 1000mcg/ml Routes: Deep IM (gluteal/deltoid) or subQ (abdominal) Loading phase: Daily/weekly for 1-4 weeks Maintenance: Monthly or every 3 months (hydroxocobalamin) No need for aspiration before injection Oral absorption requires intrinsic factor (absent in pernicious anemia) and healthy ileum
Predrag Sikiri, Sven Seiwerth, Ruman, R., Branko Turkovi, Dinko Stani Rokotov, Luka Bri, Sever, M., Kliek, R., Boo Radi, Domagoj Drmi, Spomenko Ili, Kolenc, D., Gorana Aralica, Safic, H., Jelena uran, Rak, D., Senka Didi, Hrvoje Vri, & Boidar ebei
A peer-reviewed study in the Journal of Pharmaceutical Sciences confirming that temperature and moisture are the primary drivers of lyophilized peptide degradation during storage provides the scientific basis for these refrigeration requirements
But is there benefit in taking them together
