RT Journal A1 Kater RH, Tobon F, Iber FL T1 INcreased rate of tolbutamide metabolism in alcoholic patients JF JAMA JO JAMA YR 1969 FD January 13 VO 207 IS 2 SP 363 OP 365 DO 10.1001/jama.1969.03150150075025 UL http://dx.doi.org/10.1001/jama.1969.03150150075025 AB In a controlled human study the biological half-life of tolbutamide was found to be reduced more than twofold in alcoholic patients. We suggest that this effect is the result of stimulation by alcohol of a hepatic microsomal enzyme system in the human liver responsible for the metabolism of tolbutamide. The metabolism of other therapeutic agents could be similarly affected by alcohol, and this might lead to irregularities in response to drug treatment.