pitalization, one week prior to the onset of tetraethylthiuram disulfide therapy. It was felt that the alcohol content of the robitussin® cough syrup might be responsible for the patient's difficulties, and the discontinuance of this medication resulted in a complete return of the patient to "normal." COMMENT The many reports of "psychotic reactions" to the continued use of tetraethylthiuram disulfide suggest that these reactions are toxic manifestations of treatment with the drug. While this may certainly be so in some cases, the present report suggests that some of these reactions might be due to the concomitant repeated intake of small amounts of "masked" or "unknown" alcohol, in the form of "ordinary" simple medicines or even, perhaps, by percutaneous absorption or inhalation of alcohol during the use of alcoholic preparations and lotions such as aftershave lotion. SUMMARY