I had a prescription for 20mg Adderall XR and had to go to the doctors for a refill. During my appointment they had to perform a urine drug test to show that I take my medicine. The test results came back negative even though I took my meds the morning before; I don't take them everyday because I don't want to build up a tolerance as quickly. Since I tested negative my doctor will not prescribe the Adderall anymore. I also take 20mg Propranolol (Beta blocker) 2 times each day, 20 mg Paroxetine (Paxil) each day, 5,000 mcg D3 each day, and B12 injections 2 times per week (I am deficient in both vitamins). I asked if my other mdications could have interfered with the test and was told no that there is no reason for me to test negative. I don't know what to do now, but I need my medicine. Any advice from someone else that has experienced this would be greatly appreciated. Thanks!