According to the original patent specifications for Collosols, the metals are precipitated or treated with “peptone,” which acts as the suspending or stabilizing agent. The method of using the peptone makes it doubtful, in the first place, whether the major part of the metals is present in colloidal form, or merely in the form of peptonates, i. e., as ordinary salts. Moreover, the later patents indicate that the products have been unsatisfactory; “experience having shown that some metal colloids under certain conditions not yet fully understood have the tendency to break down after a certain period” (U. S. patent No. 1,116,247). Phenol, it is claimed has a tendency to counteract this decomposition, and the patent covers the use of phenol for this purpose.
It is difficult to see how phenol could possibly have such action. In fact, it obviously does not, for a number of the samples of Collosols submitted to the Council had separated. For instance, “Collosol Hydrargyrum” was not a colloidal solution at all, but a suspension of a coarse powder. The ampules of “Collosol Ferrum” contained a considerable quantity of flocculent precipitate. If either of these preparations were injected intravenously as directed, death might result, making the physician morally if not legally liable.
The recklessness of the claims is further illustrated by the advice that these indefinite mixtures of poisonous metals can be injected in unlimited quantities. Thus, Henry Crookes stated (Chemical News, May 7, 1914, p. 218) that Collosols “contain so small a proportion of metal, viz., 1 in 2000, that even a poisonous body like arsenic can be used with impunity.” He stated that they may be applied as a lotion, intramuscular or intravenous injection, and that “one pint or more can be injected intravenously.”
In the case of “Collosol Cocain,” as was brought out in the Council’s report published in The Journal, April 12, 1919, the manufacturers have admitted that the product is not what they have claimed—and still claim—for it. The report of the A. M. A. Chemical Laboratory showed that “Collosol Cocain,” instead of containing 1 per cent. cocain as claimed, contained, in fact, at most not more than 0.4 per cent. cocain.
The report of the A. M. A. Chemical Laboratory on the Collosol products was sent by the Council to the New York office of the Anglo-French Drug Co., Ltd., in duplicate in order to facilitate reference to the London office. This was some months ago. The information which the Council requested has not yet been received, nor has the Anglo-French Drug Co., Ltd., indicated its intention of supplying such information. On the other hand, claims to which specific objection have been made, continue to appear in current advertising. Accordingly, the Council authorizes publication of this report, and declares the Collosol preparations previously named ineligible to New and Nonofficial Remedies.
Additional Notes on Collosol Evidence
In addition to the preceding the following notes of the referee on the evidence so far submitted were sent to the Anglo-French Drug Company, Ltd., for consideration:
Collosol Iodine: The leaflet which describes Collosol Iodine contains claims that are improbable, not in accord with accepted facts nor substantiated by evidence; for instance:
“This preparation contains Iodine in its most active form ...”