In reply to a request sent the Medical Supply Company for the quantitative composition and chemical formula of the compound “Merco-Arseno-Benzo-Chloride” and for the details of the biologic test by which its toxicity is claimed to have been determined and evidence for its efficiency, the following statement was received: “Tri-Arsenole No. 1 equals to each Ampoule, gr. Sodium chlorid 4-1/2 Hydrarg chlor.-cor. 1/4 Arsenous acid 1/4 Sodium benzoate 4 Hydrastin (resinoid) 2 Tri-Arsenole No. 2 equals to each Ampoule, Sodium chlorid 4 Hydrarg chlor.-cor. 1/2 Arsenous acid 1/2 Sodium benzoate 4 Hydrastin (resinoid) 2 Tri-Arsenole No. 3 equals to each Ampoule, Sodium chlorid 3-1/2 Hydrarg chlor.-cor. 3/4 Arsenous acid 3/4 Sodium benzoate 4 Hydrastin (resinoid) 2 Tri-Arsenole No. 4 equals to each Ampoule, Sodium chlorid 3 Hydrarg chlor.-cor. 1 Arsenous acid 1 Sodium benzoate 4 Hydrastin (resinoid) 2 The request for information regarding the animal experiments said to have determined the toxicity was ignored, nor were references supplied to clinical reports demonstrating the value of the product. The Council declared Tri-Arsenole inadmissible to New and Nonofficial Remedies because of conflict with the rules as follows: In the absence of details of the method used, the claim that the preparation has been tested biologically is in conflict with Rule 2, which requires that for preparations claimed to be physiologically standardized the method of testing must be published so as to permit of control by independent investigators. The claims that “Merco-Arseno-Benzo-Chloride” is “the result of many years research,” that its “toxicity has been fully tested upon animals before using clinically” and that clinical use has “proven such complete success” have not been substantiated by evidence and must be held as unwarranted.