NO KETOTIFEN DOESN'T MAKE YOU JITTERY, IT'LL MAKE YOU SLEEPY.IT'S USED TO KEEP YOUR RECEPTORS FROM ADAPTING TO THE CLEN. CLEN IS SUPPOSE TO MAKE YOU JITTERY. I HAVE THE SAME PROBLEM AS RUGBY THUG. I'LL WAKE UP AT 645AM TAKE 80MCG OF CLEN,AND FALL BACK ASLEEP. IT DOESN'T GIVE ME ENERGY LIKE ECA DOES. I MIGHT GET SOME CAFFINE PILLS TOO