(At Life Extension, we offer expert support seven days a week to answer exactly these kinds of questions.) DO ask questions
As a general rule, IM is favored when the goal is rapid correction of a clinical deficiency, when the patient has difficulty absorbing B12 through oral or sublingual routes, or when a provider wants predictable peak serum levels
However, even after their expiration date, vitamins do not generally become unsafe to take
Multi-Dose Application: Benzyl alcohol preservative allows the vial to be used multiple times, adding convenience for clinical settings
The Myers Cocktail infusion supports energy and nutrient balance
Therefore, if you are pregnant or breastfeeding, it is recommended to discuss it with your doctor before starting any treatment course