George P. Provost, 49, an editorial and information official of the United States Pharmacopeial Convention and a former official of the American Society of Hospital Pharmacists, died of cancer Oct. 20 at Suburban Hospital in Bethesda.

Mr. Provost, who was born in Norwood, Mass., graduated from the Massachusetts College of Pharmacy in Boston in 1954 and then served two years in the Army.

In 1959, he joined the American Society of Hospital Pharmacists in Little Rock, Ark., and in 1961 was transferred to Washington. From 1966 to 1974, he was editor of the American Hospital Formulary Service, a drug information compendium for health professionals, and directed the communications bureau and the professional practice department. In 1974, he became executive vice president of the ASHP Research and Education Foundation, which supports research in hospital pharmacy practice.

In 1976, Mr. Provost was named editor of the Journal of the American Pharmaceutical Association. From 1977 to 1980, he was business director of the Philadelphia College of Pharmacy and Science.

He worked briefly as a publishing consultant and in 1981 returned here as an information systems and editorial official of the United States Pharmacopeial Convention, a nonprofit group that sets standards for pharmaceutical products.

Mr. Provost, who lived in Media, Pa., at the time of his death, is survived by his wife, Barbara Jo, of Media; four children, Eric, an Army lieutenant stationed in Alexandria, and Suzanne, Vincent and Yvonne, all of Media; his mother, Aurore Provost of Dedham, Mass., and two brothers, Raoul, of Wilmington, Del., and Paul, of Watertown, Mass.