What are the main ingredients in wegovy and ozempic?

Main Active Ingredient in Wegovy and Ozempic

Wegovy and Ozempic both contain semaglutide as their active ingredient. Semaglutide is a GLP-1 receptor agonist that mimics a hormone to regulate blood sugar, slow gastric emptying, and reduce appetite.[1]

How Wegovy and Ozempic Differ

Despite sharing semaglutide, they are formulated for different uses and doses:
- Ozempic: Approved for type 2 diabetes management; weekly doses up to 2 mg semaglutide.
- Wegovy: Approved for chronic weight management; higher weekly doses up to 2.4 mg semaglutide.
Inactive ingredients are similar but vary slightly by dose and pen design, including disodium phosphate dihydrate, propylene glycol, phenol, and water for injection.[1][2]

Full Ingredient Lists

Ozempic (per 0.25 mg/0.5 mg dose example)

• Active: Semaglutide 0.25 mg or 0.5 mg
  
• Inactive: Disodium phosphate dihydrate, propylene glycol, phenol, water for injections.[2]
  
  

Wegovy (per 0.25 mg dose example; higher doses scale semaglutide)

• Active: Semaglutide 0.25 mg (up to 2.4 mg in other pens)
  
• Inactive: Disodium phosphate dihydrate, propylene glycol, phenol, water for injections.[1]
  
  These lists come from official prescribing information; check product labels for exact dose-specific formulations.
  
  

Why the Same Drug, Different Brands?

Novo Nordisk manufactures both under separate FDA approvals. Semaglutide's patents protect the molecule until around 2031-2033 in the US, delaying generics.[3] No generics exist yet.

Common Patient Questions on Ingredients

Patients often ask if ingredients cause allergies—phenol acts as a preservative, and propylene glycol may trigger rare reactions. Semaglutide itself rarely causes hypersensitivity.[1][2]

[1]: Novo Nordisk Wegovy Prescribing Information
[2]: Novo Nordisk Ozempic Prescribing Information
[3]: DrugPatentWatch.com - Semaglutide Patents