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Gefitinib (Iressa)

Also known as Iressa

Gefitinib (INN, pron.: /ɡɛˈfɪtɨnɪb/, trade name Iressa, marketed by AstraZeneca and Teva), is a drug used for certain breast, lung and other cancers. Gefitinib is an EGFR inhibitor, like erlotinib, which interrupts signaling through the epidermal growth factor receptor (EGFR) in target cells. Therefore, it is only effective in cancers with mutated and overactive EGFR.

Source: Wikipedia

Estimated Total Cost: $1449.8 for an average of 28 days supply

What is it prescribed for?

Patients are most commonly prescribed gefitinib to treat blastomycosis, rabies, west nile virus, and pick disease.

What drug interactions are known?

Do not take gefitinib if you are taking any of the following:

Critical Interactions

Significant Interactions

What side effects are related?

Patients taking gefitinib most commonly experience side effects like skin rash, diarrhea, and acne.

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