I was prescribed time release on tenex but now I'm taking guanfacine & I'm not sure if its time release or not. I felt so much fatigue that I just stopped taking it altogether but then felt so agitated that I decided to start taking just half of .5 tabs but the fatigue came back and maybe even worse; then I remembered when it was first prescribed my Dr told me to never break them in half because they were time release. can anyone answer this pls?