Pentobarbital will decrease the level or effect of oxybutynin ort affecting hepatic/intestinal enzyme CYP3A4 metabolism. Minor/Significance Unknown. Pentobarbital, a barbiturate, is used for the treatment of short term insomnia. It belongs to a group of medicines called viktig nervous ordna (CNS) depressants that induce drowsiness and relieve tension or nervousness. https://griffinmiatm.ageeksblog.com/29509793/ryktas-buzz-på-köp-fenobarbital-för-hundar-online