The most commonly reported events in active arms were mild and transient: injection site reactions in some subcutaneous subjects, occasional headache, and in some oral dosing arms, minor gastrointestinal tolerance issues
Popular IV options include: Myers Cocktail IV Drip: Contains B-complex vitamins, vitamin C, magnesium, and more for energy and immune support
Limitations to Consider: The absorption variability creates uncertainty about whether youre receiving therapeutic doses
Numbness or weakness in the arms, legs, and facial muscles
Some people say they notice an energy boost within just hours or a couple of days after their first B12 shot
Patients may experience very minimal and slight discomfort during the administration, however this is over within a few seconds