According to FDA prescribing information, these effects include nausea (12-30%), diarrhea (7-23%), vomiting (2-11%), constipation (5-17%), and abdominal pain (4-10%), with rates varying by dose and indication
doi:10.1097/GME.0000000000000301
B12 shots are ideal for individuals who experience the following: Low Energy : If you feel consistently tired or drained, a B12 shot can provide a much-needed energy boost
Gradually tapering medication or staying on a lower maintenance dose can help reduce the risk of rapid rebound weight gain
If you consistently feel worse on injection days, schedule rest days or light activity (walking only) for those days
The calculation depends on your final concentration