between the test groups and the control group in comparison with other clinically tested choleretics cis 3 3 5 trimethylcyclohexanol exhibited the potential effect described below the choleretic effect of the substances named below was tested on male wistar rats as follows rats under barbiturate anaesthesia drainage of the ductus hepaticus and collection of bile every 30 minutes administration of the substances orally after a preliminary period of one hour reference corrected basic secretion of the control animals which received a placebo ______________________________________test substances ______________________________________rowachol sup r terpene mixture of 6 individual terpenes the active ingredient per capsule of rowachol u00ae is a mixture of the following terpene compounds menthone 0 008953g borneol 0 007462g pinene 0 025372g camphor 0 007462g cineol 0 002983g and menthol 0 047768g dose 4 0 ml kgdecholin sup r dehydrocholic acid dose 600 mg kgfelogen sup r succinic acid mono u03b1 2 5 endomethylene u03b4 sup 3 cyclo hexenyl ethyl ester dose 100 mg kgcis 3 3 5 trimethylcyclohexanol dose 0 3 ml kg______________________________________ the results of the test are illustrated in a graph in fig4 the succinic acid ester produced a distinct increase of choleresis which reached its maximum within one hour of application the choleretic effect then decreased gradually until the end of the experiment rowachol on the contrary took longer to produce a choleretic effect not reaching its maximum until within the third hour after administration the effect.