The prescription must come from a physician, nurse practitioner, or physician assistant who has reviewed your medical history, current medications, and weight-related health goals
The most common side effects include nausea, vomiting, diarrhea, constipation, and stomach discomfort
The most common adverse effects are gastrointestinal , occurring in 20-50% of patients and including nausea, vomiting, diarrhea, constipation, and abdominal pain
Similarly, IM injections offer an effective alternative, though they are slightly slower than IV therapy in absorption
The wellness positioning of B12 shots as an energy or weight-loss boost for healthy people is not supported by the NHS, by NICE, or by published trial evidence
If you suspect your medication is causing side effects, you or your healthcare professional can report these through the MHRA Yellow Card Scheme (yellowcard.mhra.gov.uk or the Yellow Card app)