Remember, the duration of efficacy of a B12 shot is an estimate and varies from person to person
The two most common SPPS strategies are Fmoc (9-fluorenylmethyloxycarbonyl) and Boc (tert-butyloxycarbonyl) chemistry
It all boils down to the need of the patient, even when the injectables are good but oral supplements are also acceptable depending on the needs of the patient
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