Generally speaking, however, for a deficiency, the injection should be administered once every 1 to 3 months, depending on the severity
Researchers need identity review, analytical documentation, fill accuracy, vial presentation, storage awareness, packaging quality, and a supplier that handles fulfillment directly
Final Thoughts So, where does that leave the question of how long a B12 shot lasts
Although the injections are probably innocuous, they are unlikely to help your weight-loss efforts and may interfere with other medications, according to nutritionist Katherine Zeratsky of the MayoClinic.com
The muscle recovery aspect is real and what has me coming back 3 weeks in, havent lost much weight yet, but Im hopeful