I am taking the following different pain meds after knee replacement surgery- 10 mg oxycontin x2, 5/325 mg oxycodone, 7.5 mg meloxicam x2, 300 mg gabapentin x3, and Tylenol. I am also taking the following meds daily; 500 mg metformin x2, 20 mg simvastatin, 81 mg aspirin x2, 40 mg pantoprazole, 10 mg lisinopril, and 5mg amlodipine. My question is are all of these meds working together?