What are the ingredients in welireg?

What is Welireg made of?

Welireg (generic name: belzutifan) is a prescription medicine whose active ingredient is belzutifan. The key ingredient people usually mean when asking about “ingredients” is the drug itself (belzutifan).

What are the inactive ingredients?

The exact list of inactive ingredients (excipients) in Welireg can vary by formulation and product presentation. Those ingredients are typically listed in the drug’s official prescribing information or patient materials, but that specific inactive-ingredient list isn’t included in the information provided here.

If you share the dosage strength (for example, 40 mg tablets vs. another strength/presentation) or paste the label text from your bottle/box, I can help identify the inactive ingredients from that text.