GLP-1 medicines are prescription treatments used in specific clinical situations. WHO’s December 2025 guidance gives conditional recommendations for long-term treatment of obesity in adults, as part of comprehensive care that includes diet, physical activity and professional support. It excludes pregnancy from that recommendation.

Buying and using safely

Use a product prescribed or recommended by a qualified healthcare professional.
Do not buy an injectable product from an unverified website or use a product labelled only for research or not for human consumption.
Ask how to measure and administer the prescribed product. FDA has reported dosing errors and adverse events with some compounded products.
Check the packaging, pharmacy details and instructions, and ask a pharmacist or doctor if anything looks unusual.

This information does not tell you whether a GLP-1 medicine is suitable for you or what dose to use.

Sources: WHO, 1 December 2025; FDA, updated 1 October 2026.