Physiological disposition of a new diuretic compound, 2-phenyl-6-sulfonamido-7-chloro-1,2,3,4-tetrahydro-4-quinazolinone (M.G. 13054 - fenquizone), in the dog.

The absorption, excretion and metabolism of a new diuretic compound, 2-phenyl-6-sulfonamido-7-chloro-1,2,3,4-tetrahydro-4-quinazolinone (M.G. 13054), after oral administration to the dog have been studied. The results can be summarized as follows: 1) M.G. 13054 given orally to dogs is quickly absorbed. 2) The maximal blood levels are reached within the 3rd hour after the administration and remain appreciable (10% of the maximal values) till the 12th hour. 3) Fecal and urinary excretion is rapid and 94% of the product administered is excreted in the first 48 hours following treatment. 4) The product does not seem to be tightly bound to plasma proteins. 5) M. G. 13054 does not seem to be metabolized to any appreciable extent.