Pharmacy has become a highly remunerated female-majority profession with a small gender earnings gap and low earnings dispersion relative to other occupations. Using extensive surveys of pharmacists for 2000, 2004, and 2009 as well as the U.S. Census of Population, American Community Surveys and the Current Population Surveys, we explore the gender earnings gap, penalty to part-time work, demographics of pharmacists relative to other college graduates and evolution of the profession during the last half century. We conclude that technological changes increasing the substitutability among pharmacists, the growth of pharmacy employment in retail chains and hospitals, and the related decline of independent pharmacies reduced the penalty to part-time work and have contributed to the narrow gender earnings gap in pharmacy. Our findings on earnings, hours of work and the part-time work wage penalty are more consistent with a shift in technology than a shift in demand preferences on the part of workers in a model of equalizing differences. The position of pharmacist is among the most egalitarian of all U.S. professions today.