primidone will lessen the level or outcome of diazepam by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Keep an eye on.lasmiditan, diazepam. Both improves results of the opposite by sedation. Use Caution/Observe. Coadministration of lasmiditan and also other CNS depressant medicines, like Alcoholic beverages have not been evalu