vitamin b12 injections vs oral Sublingual vs. B12 Injections: Which Option Is Right for You? – WhyNotNatural The Advantages of B12 Injections

The question "is 50 units of semaglutide a lot" has a completely different answer than the same question about tirzepatide

The MHRA regulates B12 injections as prescription-only medicines, and promotion of POMs directly to the public is restricted under UK regulations

Gastrointestinal effects: the main titration bottleneck Nausea, diarrhea, constipation, and vomiting run around 40 to 44% overall, dose-dependent in how many people report them but mild-dominant in severity: severe events stay at or below about 1.7% in any category even at the top dose. In the obesity program the by-dose rates run nausea 25/29/28%, diarrhea 19/21/23%, and vomiting 8/11/13% at 5/10/15 mg. They concentrate during escalation and ease with time on a held dose

The primary safety advantage is the lack of IGF-1 elevation

Joint pain

Otherwise, you may have to continue with injections