He tells me they have been used all over the world by his patients, and that as far as he can ascertain "they have never failed, when used properly and intelligently." The Pennsylvania Department of Health is within measurable distance of finding a solution of this problem the production of a cheap, portable, easily applied and thoroughly efficient self-disinfecting ointment.
In addition to Pro-Ven, the following proprietary tubes of self-disinfecting ointment have, to my knowledge, been authorised by the Department of Health, and samples were sent to me: Procaline, manufactured by the Hawthorne Drug Speciality Co., Inc., 88-90, Reade Street, New York City. Cargenios, manufactured by H.K. Mulford Company, Philadelphia.
In time it will probably be found advisable to authorise only a standard type of tube preferably the metal tube with elongated nozzle and expanded metal cap filled with one simple self-disinfecting ointment. The following is quoted as sample of directions authorised in U.S.A.: "The use of this package is not to be construed as a licence to exposure. Pro-Ven, the original preventive.