“... rich in animal cells.”
Since nothing could be found in the literature regarding the therapeutic action of an extract of the rete mucosum of the sheep, it was thought possible that the statements on the label were given simply as a vague and mysterious means of indicating the presence of wool-fat (lanolin), and tests were made to determine the presence or absence of the latter substance. A substance was isolated from Zemacol which had the physical properties of, and responded to some of the chemical tests for, wool-fat; but it was found in such small quantities as to indicate that it was not present as an active constituent. Since there are no definite tests for the detection of serums or animal extracts the presence or absence of these could not be demonstrated. Further examination indicated the presence of salicylic acid, a gummy material, having the properties of tragacanth and glycerin. It is practically free from inorganic matter. By distillation a small quantity of oil was isolated, which possesses the characteristic odor of the preparation.
Quantitative estimations[103] indicated the presence of the above-mentioned constituents in approximately the following quantities:
| Per Cent. | |
Gummy matter having the properties of tragacanth | 2.02 |
Salicylic acid | 0.67 |
Matter having the general properties of wool-fat (lanolin) | 0.20 |
Glycerin | 5.50 |
Volatile matter (water and alcohol) | 91.00 |
Aromatic oils and phenol-like bodies | Trace |
The results of the above analysis, together with advertising matter regarding Zemacol, were submitted to Dr. William Allen Pusey, professor of dermatology and clinical dermatology, College of Physicians and Surgeons, Chicago, and past chairman of the Section on Dermatology of the American Medical Association, with the inquiry whether or not there was any record of investigations regarding the therapeutic value of an extract of the rete mucosum of the sheep and whether in his opinion the claims made for Zematol would be warranted. The following reply was received:
“So far as I know, nobody ever thought of or proposed the use of an extract of rete mucosum as a therapeutic agent and if a serious suggestion of that sort had ever been made I believe I would know it. I can conceive of no service which such an extract could render and I think the suggestion of it is a highly fantastic idea. From the analysis which you furnish I should say that the mixture described is substantially the ordinary 2 per cent. solution of tragacanth in glycerin and water with a little antiseptic added to keep it from decomposing. That is a commonly known lotion, modifications of which are used in practically every hospital as a hand lotion, and has no magical virtues whatever. Incidentally, I should think it cost, aside from the labor, about twenty cents a gallon to make it.”—(From The Journal A. M. A., May 14, 1910.)
ZYME-OID
W. A. Puckner and W. S. Hilpert
Zyme-oid, manufactured by the Oxychlorine Chemical Company of Chicago, is advertised as “a powerful gastro-intestinal antiferment” which will “arrest and prevent bacterial fermentation in any portion of the intestinal tract, whether the media be acid or alkaline.” These extravagant statements, like many others made regarding the properties of zyme-oid, are very similar in character to those made in the circulars accompanying the preparation oxychlorine, manufactured by the same firm and exposed in The Journal, July 6, 1907, page 54. (See page [147] of this book.)