can b12 injections cause upset stomach

Methylcobalamin 2500 Mcg Injection High-Potency Vitamin B12 Solution at Best Price Supply Duration:1 month supply liquid b12 pets https://m.media-amazon.com/images/I/618QUrDeWHL._AC_UF350,350_QL80_.jpg Action: No specific treatment is usually required for high B12 levels

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