ROMANSKY and Rittman1,2 have developed a practical and apparently safe procedure for retarding the absorption of penicillin by suspending it in a mixture of peanut oil and beeswax, and have reported favorable results in the treatment of gonococcal urethritis.During the last nine months, various mixtures of penicillin in beeswax and peanut oil have been prepared and investigated at this hospital in an attempt to determine which one would produce the most satisfactory results, from the standpoint both of prolongation of blood levels and of clinical results. In the course of these studies, 217 men with acute gonococcal urethritis were . . .