Why is a GLP-1 receptor agonist used in weight loss injections?

GLP-1 is a hormone involved in signalling after food intake. Medicines that act at its receptor can reduce hunger and slow the movement of food from the stomach. This may support changes in portion size and meal choices, but it does not replace regular eating, movement, sleep or follow-up care. Suitability depends on your medical history, other medicines, previous weight-management approaches and the specific product. A prescriber should explain the injection schedule, expected effects and the plan for monitoring before treatment begins.

Use the injection only as prescribed and learn the injection technique, storage instructions and what to do if a dose is missed. Discuss nausea, vomiting, diarrhoea, constipation, reduced appetite or other troublesome effects early; changing the dose or schedule without advice can cause problems. Keep follow-up appointments and tell the prescriber about all medicines and supplements. A realistic food plan should include fluids and enough nutrition even when appetite is lower.

Seek urgent medical care for severe or persistent abdominal pain, especially if it reaches the back, repeated vomiting with inability to keep fluids down, swelling of the face or throat, trouble breathing, or symptoms of dehydration such as very little urine and marked dizziness. Contact the prescriber promptly for persistent side effects, symptoms of low blood sugar if you use other glucose-lowering medicine, or before starting a new medicine.

Ask whether this medicine suits your health history, how the dose will be increased, what effects are expected, and which symptoms require a call. Ask about pregnancy planning, contraception where relevant, and how other diabetes medicines may need reviewing.