Ilotycin. Perrigo. Accessed April 27, 2015 from http://www.perrigo.com/files/rx/pdfs/p329-1D500RCJ1.pdf
Personal Communication on April 27, 2015. Ocusoft: Customer Service phone 800-233-5469. Romycin (brand): discontinued.
Erythromycin. Micromedex System. Truven Health Analytics. Accessed 4/27/15 from http://www.thomsonhc.com/micromedex2/