Described herein are pharmaceutical packaging systems which stop oxidative degradation of morphine, hydromorphone, promethazine and various oxygen-sensitive medicines, this kind of units together with a syringe with an oxygen permeable tip cap, a hermetically sealed oxygen barrier blister packaging with incredibly very low permeability to oxygen and comprises ethylene vinyl, https://emilianoflnps.blogocial.com/detailed-notes-on-trazodone-for-sleep-71263850