Semaglutide
Every GLP-1 the FDA has approved, and the active ingredient inside each one.
What is Semaglutide?
The active ingredient in Wegovy, Ozempic and Rybelsus.
Its roughly seven-day half-life is what allows weekly injection. When a seller lists “semaglutide” at a fraction of brand pricing, they mean a compounded preparation of this molecule, not the approved product — a distinction their pricing page often blurs.
GLP Watchdog writes these definitions from FDA labels and peer-reviewed PubMed literature.
Where Semaglutide comes up on this site
On GLP Watchdog, Semaglutide comes up in 131 research articles, 526 seller reviews, 146 FDA warning letters and 4 tools. Browse the FDA warning letters.
Research that discusses it
- Sublingual Semaglutide Drops: What the Evidence Shows
- How Long Do Semaglutide and Tirzepatide Side Effects Last?
- Semaglutide and Knee Osteoarthritis: The Number Behind the Headline
- Generic GLP-1s: Eleven for Liraglutide, and None You Can Buy for Semaglutide
- Does Semaglutide Slow Aging?
- Semaglutide and Days Spent in Hospital
- All 131 articles are on the research page
Drug pages
Tools that use it
Seller reviews that mention it
Other terms under Drugs and brands
Where the evidence lives
- Semaglutide drug page
- The full GLP-1 glossary (149 terms, 8 categories)
- Research articles — written from primary sources
- Tools and calculators
- Compare GLP-1 telehealth providers