butabarbital and olopatadine intranasal the two enhance sedation. Stay away from or Use Alternate Drug. Coadministration increases chance of CNS despair, which can result in additive impairment of psychomotor functionality and lead to daytime impairment.butabarbital will lessen the extent or influence of carvedilol by influencing hepatic enzyme CYP

butabarbital will lessen the level or effect of nicardipine by impacting hepatic/intestinal enzyme CYP3A4 metabolism. Use Warning/Monitor.butabarbital will minimize the extent or effect of lumefantrine by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Warning/Keep an eye on.When you have been getting this drugs for a long period, usuall