I recently just came back from my clinic, and found out that the last three UAs that I took, where are negative for Klonopin. I take Klonopin 1 mg three times a day, then  my doctor was retiring, and decided to lower my dose by .5.  I think she did this to look like there was more progress in my case then there really was, but I had been on 3 mg of the generic brand for over 14 years, and lately at my clinic when I get tested the last few tests have come up negative for Klonopin, Before this, this has never happened,  and I've been going to the clinic for 18 years, five different clinics three on the East Coast one in Minnesota now on in Oregon. All the while I was on my Klonopin and going to the clinic, never had a test where my Klonopin does not show up, until now.  Could someone explain this to me, all give me some kind a hint if it's a medical condition or just a common thing, but I don't buy the common thing because it's never happened to me before, please help if you can. Mike M.