I used this medication for 6 months, the only side effects I noticed was: If I stood up too fast or sat down too fast I would get dizzy. I also found that my appetite decreased a bit and I couldn’t stay awake as late as I could before taking it(before, I went to bed around 12:00am-1:00am, after the meds kicked in it was hard to stay awake after 10:00pm) (note: I was also taking 3–4 other meds at the time which may have had an influence on the side effects) you may feel none at all, here’s a list of side effects associated with this medication: All side effects: Contact your doctor if you experience these side effects and they are severe or bothersome. Your pharmacist may be able to advise you on managing side effects. * abdominal pain * anxiety * diarrhea * dizziness * drowsiness * dry mouth * fatigue * fever * heartburn * increased sweating * increased yawning * loss of appetite * nausea * painful periods * sexual difficulties * sore throat * stuffy or runny nose * shakiness * trouble sleeping * vomiting Check with your doctor as soon as possible if any of the following side effects occur: * behaviour similar to drunkenness * bleeding gums * blurred vision * confusion * dizziness or fainting * increase in frequency of urination or amount of urine produced, or trouble holding or releasing urine * irregular heartbeat * lack of emotion * loss of memory * menstrual changes * mood or mental changes * nervousness * nosebleed * purple or red spots on skin * severe agitation * severe migraine * skin rash or itching * slow or irregular heartbeat (less than 50 beats per minute) * sore throat, fever, and chills * trouble breathing * unusual or sudden body or facial movements or postures Stop taking the medication and seek immediate medical attention if any of the following occur: * chest pain * seizure or convulsions * serotonin syndrome (signs include: agitation, confusion, diarrhea, fever, overactive reflexes, poor coordination, restlessness, shivering, sweating, talking or acting with excitement you cannot control, trembling or shaking, twitching) * thoughts of suicide or hurting yourself Ref:
http://bodyandhealth.canada.com/drug_info_details.asp?channel_id=0&relation_id=11573&brand_name_id=1114&page_no=2#AdverseEffects