It is not clear whether the long-term use of H 2 -receptor antagonists could cause overt vitamin B 12 deficiency (141, 142)
Retatrutide (a triple GIP/GLP-1/glucagon receptor agonist), survodutide, mazdutide, and CagriSema represent the next generation of anti-obesity compounds that may offer even greater efficacy or better tolerability profiles
The systematic review protocol was registered in the International Prospective Register of Systematic Reviews (PROSPERO), registration number: CRD42024554513 (Available from) ( 2.2 PICOs question The primary research question addressed in this review was: What is the effectiveness of sublingual/oral administration of Vitamin B12 alone or compared to other forms of administration (e.g., intramuscular injection)?
Sitting on any drugstore shelf, they cost little and require no appointment to pick up
If they use the services of a medical weight loss clinic, it might also offer vitamin B12 injections for weight loss