Dacomitinib is a kind of medicine that blocks a protein called EGFR, often used to treat lung cancer in people with certain gene changes, like the ones in exon 19 or exon 21. It’s made to stop the EGFR from sending certain signals. You can get it in three strengths—15, 30, and 45 milligrams.
The doc usually says to take the 45 mg tablet every day. Each bottle holds 30 tablets with a coating. It works by keeping this little thing called EGFR from doing its job, which is to make cancer cells grow and spread.
It’s a targeted therapy, which means it’s supposed to weaken these gene changes so they don’t make cancer cells multiply so fast.