http://www.medications.com/effect/view/14636 I HAD THE SAME PROBLEM AS sarava, #21541 I WAS ON THE SAME DOSE, BUT AM NOT BI POLAR...BUT THEY ACCIDENTLY SWITCHED MY SUBSCRIPTION TO THE XL...MY EARS RANG SO BAD I HAD TO GO TO THE DOCS AND THEN HAD TO HAVE A HEARING TEST...ALSO...EVEN BEFORE THAT I HAD T