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B12 Injections Why an injection instead of an oral supplement
For some patients, a combination approach may be appropriate using injections during intensive weight management phases and oral supplementation for maintenance
The addition of benzyl alcohol helps inhibit bacterial growth after the vial has been punctured, enabling multiple withdrawals using sterile technique and reducing the risk of contamination in multi-dose research applications
Most trials run for a few years in higher-risk patients, not decades in low-risk ones, so their reassurance does not automatically extend to 30+ years of treatment in a younger, healthier population
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