IRESSA- gefitinib tablet, coated. AstraZeneca Pharmaceuticals LP. U.S. National Library of Medicine, National Institutes of Health, DailyMed. Accessed April 28, 2015 from http://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=827d60e8-7e07-41b7-c28b-49ef1c4a5a41
Personal Communication on April 28, 2015. Iressa Clinical Access Program. AstraZeneca Pharmaceuticals LP. Phone 877-283-0955. Re: As of 9/30/2011, Iressa only available through this alternative program to allow continued access by providers registered with the program; program remains active.
IRESSA (gefitinib) tablets, for oral use. Drugs@FDA. US Food and Drug Administration. Accessed April 27, 2015 from http://www.accessdata.fda.gov/Scripts/cder/drugsatfda/index.cfm?fuseaction=Search.DrugDetails
Gefitinib. Lexi-Comp ONLINE, 2015 Lexi-Comp, Inc. Accessed April 27, 2015 from http://online.lexi.com.
Gefitinib. DRUGDEX System. 2015 Truven Health Analytics Inc. Accessed April 27, 2015 from http://www.thomsonhc.com.