Each tablet contains 40 mg or 80 mg osimertinib (as mesylate).
Excipient with known effect: This medicine contains 0.3 mg sodium per 40 mg tablet and 0.6 mg sodium per 80 mg tablet.
Excipients/Inactive Ingredients: Tablet core: Mannitol, Microcrystalline cellulose, Low-substituted hydroxypropyl cellulose, Sodium stearyl fumarate.
Tablet coating: Polyvinyl alcohol, Titanium dioxide (E 171), Macrogol 3350, Talc, Yellow iron oxide (E 172), Red iron oxide (E 172), Black iron oxide (E 172).