b12 injection half life How Long Does Vitamin Last In Your System but at the very least Vitamin B12 - PMC

Many people are recommended to take vitamin B12 shots if they are deficient in B12 or if they have or are likely to develop pernicious anemia

If you develop diarrhoea after starting B12 supplementation, it is worth considering other factors that may be contributing to your symptoms

Phentermine is a clinician-guided appetite support option designed to help reduce hunger and support portion control as part of a medically supervised weight management plan

Thiamine hydrochloride (vitamin B1) in the formulation is known to cause life threatening anaphylaxis especially on multiple administrations if patient is allergic to it