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Administration Instructions Intramuscular Injection Instructions 503A vs 503B 503A pharmacies compound products for specific patients whose prescriptions are sent by their healthcare provider
However, coding injections correctly requires much more than selecting a medication code
Therefore, taking a 5000 mcg dose yields about 50 mcg of absorbed B12, which is vastly higher than the daily requirement of 2.4 mcg
2 Digestive Issues This may include chronic vomiting and persistent diarrhoea that cannot be attributed to an infection or known illness
Because stores are large relative to daily requirements (2.4 g/day for adults), deficiency develops slowly often over 25 years which makes it easy to miss until symptoms become serious
