Answer
Aug 04, 2026 - 11:18 AM
The active ingredient in Tagrisso is osimertinib mesylate. Osimertinib is an EGFR (epidermal growth factor receptor) inhibitor that specifically blocks signals that promote the growth and spread of cancer cells with EGFR mutations. This targeted inhibition helps slow disease progression and improves survival rates for people with certain lung cancers.
