Read the manual on the test. Sometimes funny results can happen and false positives are possible. This is, of course, if it was a home test. But I've gotten a false positive from a lab before when I was taking a test for a job and I just took another one and it was clear the second time.
I Took A Test Urine For Speed And It Came Up Positive I Take Oxycodone/apap 5mg-325mg And For Sinus Alavert, Why Did It Come Up Positive For Speed?
Oxycodone is an opioid, it isn't an "upper" so to speak, but rather, a "downer". However, there is pseudoephedrine in Alavert, and this is known to cause several side effects such as anxiety, palpitations, and hypertension, among other things. I'm not a doctor here, but I think it would be safe to say that you showed speed, because of the pseudoephedrine. Hope this helps anyway. Good luck.