What should you know about GLP-1 receptor agonists for weight loss?

The medicine imitates a gut hormone that affects appetite, fullness, stomach emptying, and blood-glucose regulation. Feeling satisfied with less food can help some people reduce overall intake. The response differs between people, and treatment is usually considered alongside food, activity, sleep, and support for related health needs.

Nausea, vomiting, constipation, diarrhoea, reflux, and reduced appetite can occur. These effects are more likely to be troublesome when treatment begins or the dose rises, so gradual changes and follow-up matter.

Discuss your medical history and goals with a qualified prescriber before starting. Mention pregnancy or plans for pregnancy, previous pancreas or gallbladder problems, kidney disease, severe digestive symptoms, allergies, and all medicines or supplements.

Follow the prescribed schedule, eat slowly, prioritise nourishing food, and keep fluids available. Never use a pen shared by someone else, take an unverified product, or change the dose to speed up weight loss. Keep appointments to review progress, side effects, and whether treatment remains appropriate.

Seek urgent medical care for severe or persistent abdominal pain, repeated vomiting, fainting, confusion, facial or throat swelling, or difficulty breathing. Contact your clinician promptly if you cannot keep fluids down, have ongoing diarrhoea, notice yellow skin or eyes, or develop a new marked change in vision.

Ask why this medicine is suitable, how appetite and nutrition will be monitored, what to do after a missed dose, which side effects are expected, and when the plan should be reassessed.