pentobarbital will decrease the level or effect of cinacalcet ort affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Datorskärm.pentobarbital will decrease the level or effect of alprazolam ort affecting hepatic/intestinal enzyme CYP3A4 metabolism. Use Caution/Bildskärm.Nursing mothers: Caution should bedja exercised when a barbit