The Encyclopedia of Peptides

A to Z / Metabolic / weight loss

Liraglutide

Also known as Saxenda, Victoza.

Best known for The first-generation GLP-1
Evidence★★★★★
Safety dataWell characterised
Route injectable (subcutaneous)
United StatesFDA approved
AustraliaSchedule 4 (Prescription Only)
as at 16 September 2026

What it is

Liraglutide is a GLP-1 receptor agonist approved as Saxenda for weight management and Victoza for type 2 diabetes. It arrived years before semaglutide and was the first GLP-1 approved specifically for obesity.

Newer agents have largely taken its place, and it remains worth knowing about: it has the longest real-world safety record in the class, and it is frequently cheaper and more available.

What the full entry covers

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Related entries

A certificate of analysis tells you what is in a vial. The evidence rating above tells you whether the compound has been shown to work in humans. Neither answers the other's question. How to read a certificate of analysis.

This page describes what is known and not known about Liraglutide. It is not medical advice and not a recommendation to use it.