I take medicine at 8 a.m. and 2 p.m. then again at 8 p.m.the ones I take at 2, I get very sleepy about an hour later. I have waited till 3, and had the same results. Could it be 1med. Or is it some combined? Below is what I take; 7 a.m. phentermine , 8 a.m acyclovir, anastrozle, roprinirole, calcium, vitamin b, vitamin e, 2p.m. lovastatin, roprinirole, vitamin e, 8 p.m. oxybuitynin, acyclovir, clonidine, roprinirole, calcium, lisinopril, vitamin b.