How Long Does Semaglutide Last? Half-Life & Dosing Frequency

Semaglutide has a reported half-life of ~7 days. This page explains what that means for how long Semaglutide stays active, how quickly it clears the body, and how often it is dosed in research.

What Is Semaglutide's Half-Life?

The half-life of a compound is the time it takes for the amount in the body to fall to half its original level. For Semaglutide, research reports a half-life of ~7 days. A GLP-1 receptor agonist used for weight management and blood sugar control.

How Long Does Semaglutide Stay in Your System?

A compound is generally considered mostly cleared after about five half-lives. With a half-life of ~7 days, Semaglutide is largely cleared after roughly 35 days. Individual metabolism, dose, and dosing frequency can shift this estimate.

What This Means for Dosing Frequency

Research protocols commonly use Semaglutide 1x per week (Same day each week, any time of day). Dosing frequency is generally matched to the half-life and to how long the compound's effects last — peptides with shorter half-lives are often dosed more frequently, while longer-acting compounds may be dosed less often.

Frequently Asked Questions

What is Semaglutide's half-life?

In the research literature, Semaglutide is reported to have a half-life of ~7 days. Half-life is the time it takes for the amount of a compound in the body to fall to half of its original level.

How long does Semaglutide stay in your system?

As a general pharmacokinetic rule, a compound is mostly cleared after about five half-lives. For Semaglutide, with a half-life of ~7 days, that works out to roughly 35 days. Individual metabolism, dose, and dosing frequency can shift this.

How often is Semaglutide dosed?

Research protocols commonly use Semaglutide 1x per week. Dosing frequency is generally matched to the compound's half-life and to how long its effects last.