b12 injection make you sleepy How Soon Do Feel Less Tired After a Injection? Feeling tired, low on energy
Description
Some patients may experience mild redness or tenderness at the injection site
Disclaimer: This drug has not been found by FDA to be safe and effective, and this labeling has not been approved by FDA

Rodig SJ, Vergilio J-A, Shahsafaei A, Dorfman DM

Orexins and orexin receptors: a family of hypothalamic neuropeptides and G protein-coupled receptors that regulate feeding behavior