Risks, side effects and interactions While effective, GLP-1 drugs can have side effects, such as: Nausea and vomiting Diarrhea or constipation Headache Fatigue Risk of pancreatitis Potential thyroid tumors (in animal studies) Real-world reports suggest GLP-1 side effects may be broader than what is emphasized in clinical trials
GLP-1s were originally developed for diabetes and remain effective for blood sugar management while supporting weight loss
Patients should be reviewed 812 weeks after commencing treatment to assess: Symptomatic improvement, particularly resolution of fatigue and neurological symptoms Haematological response (normalisation of haemoglobin and mean cell volume) Reticulocyte count typically rises within one week, indicating bone marrow response Repeat serum B12 testing is generally not useful after starting parenteral therapy, as levels remain elevated for months
For example, one insurer may require detailed diet history documentation, while another focuses primarily on clinical measures, such as BMI or blood pressure
Some patients respond robustly to standard dosing
One of its primary benefits is appetite suppression, which plays a significant role in supporting long-term, sustainable weight loss
