vitamin b12 injections uses Compounded B-Complex Injection Vitamin B12 Shots Specialist Near
Description
B12 (hydroxocobalamin is listed as an essential medicine by WHO (see page 19 here) but it seems this is not understood by many GPs

Studies using scintigraphy to track food transit show that stomach emptying rates decrease by 40-60% at therapeutic doses

Bokov AF, Garg N, Ikeno Y, Thakur S, Musi N, DeFronzo RA, Zhang N, Erickson RC, Gelfond J, Hubbard GB, Adamo ML, Richardson A

Consequently, you'd usually need to store more water in a hot climate than you would in a cool one
[41] : 974975 Signs of low vitamin levels in infants and young children can include anemia, poor physical growth, and neurodevelopmental delays
