Effects of Varying levels of both hydroxyzine & Methadose

[GutterPhenomenon69]

Hi. Swim Is Currently on 75mg Of Methadone A Day. He is also on hydroxyzine as well, (50mg at night). One would make the Argument that hydroxyzine increases methadone levels so if one were to discontinue the hydroxyzine then that person would feel a slight withdrawal coming off the hydroxyzine due to a return to normal levels of the narcotic. So . . . in conclusion, if one were to take the hydrox. at night time around 6 would there still be a lingering half-life that would effect the methadone levels the next day if swim were to dose say at 7-9 in the morning the next day? Does anyone know the half life on the hydrox.? Thanks in advance.

[Yetti]

I googled it.
According to prescriptiondrug-info dot com :

"renal half Life 20 To 25 Hours."

-Yetti.