WARNING: Use this medicine with caution if you have a history of mental or mood problems or alcohol or substance abuse or dependence. Abuse of this medicine may cause it to not work as well. Abuse may also lead to addiction and mental or mood changes. Do not suddenly stop using this medicine. Depression or other mental problems may occur. Your doctor should slowly lower your dose over a period of time if you need to stop using it. Some medicines or medical conditions may interact with this medicine. INFORM YOUR DOCTOR OR PHARMACIST of all prescription and over-the-counter medicine that you are taking. DO NOT TAKE THIS MEDICINE if you are also taking a monoamine oxidase inhibitor (MAOI) (eg, phenelzine) or have taken an MAOI within the past 14 days. ADDITIONAL MONITORING OF YOUR DOSE OR CONDITION may be needed if you are taking anticoagulants (eg, warfarin), certain anticonvulsants (eg, phenobarbital, phenytoin, primidone), phenylbutazone, selective serotonin reuptake inhibitors (SSRIs) (eg, fluoxetine), tricyclic antidepressants (eg, imipramine), or medicines for high blood pressure (eg, guanethidine, metoprolol). DO NOT START OR STOP any medicine without doctor or pharmacist approval. Inform your doctor of any other medical conditions, including a history of seizures or abnormal electroencephalograms (EEGs), overactive thyroid, chronic fatigue, cystic fibrosis, stomach or bowel problems (eg, blockage, inflammation, narrowing), allergies, pregnancy, or breast-feeding. Tell your doctor if you have a history of high blood pressure, blood vessel problems, heart problems (eg, heart failure, heart defects, fast or irregular heartbeat), or heart attack, or if a family member has a history of any of these problems or sudden death. Tell your doctor if you have a history of mood or mental problems (eg, agitation, anxiety, bipolar disorder, depression, psychosis, tension), abnormal thoughts, hallucinations, suicidal thoughts or attempts, or alcohol or other substance abuse or dependence, or if a family member has a history of any of these problems. USE OF THIS MEDICINE IS NOT RECOMMENDED if you have severe anxiety, agitation, or tension; glaucoma; serious heart problems (eg, heart defect, irregular heartbeat); or motor tics (involuntary movements), Tourette syndrome, or a family history of Tourette syndrome. Use of this medicine in CHILDREN under age 6 is not recommended. Discuss with your doctor the risks and benefits of giving this medicine to your child. Contact your doctor or pharmacist if you have any questions or concerns about using this medicine.