EXHIBIT 1.1 AVANIR PHARMACEUTICALS CLASS A COMMON STOCK UNDERWRITING AGREEMENT May 25, 2004 Lazard Freres & Co. LLC Four Embarcadero Center, Suite 650 San Francisco, California 94111 Ladies and Gentlemen: AVANIR Pharmaceuticals, a California...Underwriting Agreement • May 26th, 2004 • Avanir Pharmaceuticals • Pharmaceutical preparations • California
