Alcaftadine solution/drops. Allergan, Inc. U.S. National Library of Medicine, National Institutes of Health, DailyMed. Accessed May 6, 2015 from http://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=17d37e8d-7825-424b-b6ca-0a85d0bf4694.
Alcaftadine. 2015 Clinical Pharmacology. Accessed May 6, 2015 from http://www.cliniccalpharmacology.com.
Alcaftadine. Lexi-Drugs. 2015 LexiComp Inc. Accessed May 6, 2015 from http://online.lexi.com.
Alcaftadine. Micromedex 2.0. Truven Health Analytics, Inc. Accessed May 6, 2015 from http://www.micromedexsolutions.com.