My mother has a severe autoimmune disease that has symptoms of rheumatoid, lupus, and severe ankylizing spondilosis. She doesn't have any contraindications with her medications except that she was recently prescribed celebrex. According to the interactions checker, the celebrex can interfere with the absorption of her pain medication, and indeed, I have observed that she's been experiencing more pain, even though she IS having success with inflammation related pain. So, when should these meds be taken? Which one should be taken first and how long does she need to wait before taking the other? Assistance ASAP would be wonderful. Thank you in advance.