Plus I take Zanaflex 4mg & Gabapinton 600mg still in pain I had surgery on January and February 2015 had a infusion on my L/4 L/5 I have 4 screws and 2 rods in my spine Im running low on my meds I have a UA Wednesday will one 5/325 oxycodone make it possible to pass If I take it 12 hours before I go???