Side Effects :
. drowsiness
. tiredness or weakness
. dizziness
. headache
. uncontrollable shaking of a part of your body
. double or blurred vision
. unsteadiness
. anxiety
. memory problems
. strange or unusual thoughts
. unwanted eye movements
. nausea
. vomiting
. heartburn
. diarrhea
. dry mouth
. constipation
. increased appetite
. weight gain
. swelling of the hands, feet, ankles, or lower legs
. back or joint pain
. fever
. runny nose, sneezing, cough, sore throat, or flu-like symptoms
. ear pain
. red, itchy eyes (sometimes with swelling or discharge)