b12 intramuscular injection thigh Best Vitamin Sites: Where to Inject B12 · PA Relief Best Vitamin B12 Injection Sites
Description
Since vitamin B12 is water soluble, portions not metabolized by the body will be eliminated via urination

The Reddit thread you saved last night contradicts both

Some users choose to take additional B12 sublingually rather than relying solely on the injected form in their tirzepatide

Blood Pressure 140/70

Some patients use combinations such as MIC + B12 or NAD+ with Glutathione when medically appropriate