where to administer vitamin b12 injections Best Injection Sites: Inject B12 · PA Relief How to self-inject intramuscular vitamin
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It is stored in the liver and whatever your body doesn't use is excreted through urine, Allen says

The Hangover Drip: A Vitamin B12 Boost for Rapid Recovery Kanika Durga Aug 17, 2024 3 min read Many people experience the unpleasant aftereffects of a hangover, which include dehydration, exhaustion, headaches, and general discomfort, following a night of festivities

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And if you can, take someone with you...sadly, doctors are more amenable and less hostile when a witness is present
