 The importance of these distinctions is evident in view of the dangers of erroneously relying upon more general descriptions of Apothecaries' fluid measures, which typically list 60 minims per fluid dram, and 8 fluid drams per fluid ounce (480 minims).The main effects of Paregoric are to increase the muscular tone of the intestine, to inhibit normal peristalsis, and as an expectorant; a peer-reviewed clinical study in 1944 reported "that all of [its] ingredients have been found to contribute toward the expectorant action of paregoric, and, further, that an advantage is contained in the combination over the sum of the effects of the individual constituents," that Paregoric "is expectorant by virtue of a reflex from the stomach," and "preparations of paregoric which have aged for two or three years are superior as an expectorant to preparations aged for less time.