how to self inject vitamin b12 Shots at Home: How, Where & Often Yourself How To Self-Inject B12

It is more work, but it also gives you more flexibility

doi: 10.1111/j.1527-3466.2005.tb00161.x

This suggests there may be a preference for soft and chewable pill formats

METHODS: Animals were randomly allocated to sequentially receive atropine (0.12 mg/kg by rapid injection), pralidoxime (25 mg/kg by injection during 2 minutes), and hydroxocobalamin (75 mg/kg during 10 minutes) by the intravenous or intraosseous route, or atropine and pralidoxime by the intramuscular route

Given these considerations, Vitamin B-Complex Injection should be used during pregnancy only if clearly indicated

This formulation is specifically designed to address conditions such as neuropathy, anemia, B12 deficiency, megaloblastic anemia, and Leber's disease