b12 injection is painful Does Vitamin Hurt B12 Injections for Energy &

Many patients report feeling increased energy within 24-48 hours after their first injection

This includes vegans and vegetarians, older adults, individuals with atrophic gastritis, pernicious anemia, gastrointestinal disorders, those who have had gastrointestinal surgery and people who take certain medications including, but not limited to, estrogen (HRT), and birth control pills

Not intended to diagnose, treat, cure, mitigate, or prevent any disease

The medication further slows gastric emptying, which could exacerbate pre-existing motility issues

Inconsistent administration Skipping doses, irregular timing, and forgotten applications all reduce effectiveness