Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.
Make sure your doctor knows if you are using carbamazepine (Tegretol®), levodopa (Dopar®, Larodopa®), paroxetine (Paxil®), medicine for heart rhythm problems (such as amiodarone, quinidine, procainamide, sotalol, Betapace®, Cordarone®, or Procanbid®), medicine for mental illness (such as chlorpromazine, thioridazine, Mellaril®, or Thorazine®), or certain antibiotic medicines (such as gatifloxacin, moxifloxacin, Avelox®, or Tequin®).
Do not drink alcohol while you are using this medicine.
Tell your doctor if you are using any medicines that make you sleepy. These include sleeping pills, cold and allergy medicine, narcotic pain relievers, and sedatives.
Make sure your doctor knows if you are pregnant or breastfeeding, or if you have kidney disease, diabetes, stomach or bowel blockage, Parkinson's disease, trouble with swallowing, or a history of seizures or neuroleptic malignant syndrome (NMS). Tell your doctor if you have any kind of blood vessel or heart problems, including low blood pressure, heart failure, a low amount of blood, heart rhythm problems (such as QT prolongation), or a history of a heart attack or stroke. Also tell your doctor if you have ever been depressed or had thoughts of hurting yourself or others.
This medicine should not be used to treat mental disorders in elderly patients who have dementia. Using this medicine to treat this condition could increase the risk for serious side effects, including death. Some side effects are more likely to happen in elderly people who have memory problems or reduced mental skills. Make sure the doctor knows if the person who will be using this medicine has forgetfulness or confusion related to aging (such as Alzheimer's disease or dementia).
Stop using this medicine and check with your doctor right away if you have any of the following symptoms while using this medicine: convulsions (seizures), difficulty with breathing, a fast heartbeat, a high fever, high or low blood pressure, increased sweating, loss of bladder control, severe muscle stiffness, unusually pale skin, or tiredness. These could be symptoms of a serious condition called neuroleptic malignant syndrome (NMS).
Tardive dyskinesia (a movement disorder) may occur and may not go away after you stop using this medicine. Check with your doctor right away if you have any of the following symptoms while using this medicine: lip smacking or puckering, puffing of the cheeks, rapid or worm-like movements of the tongue, uncontrolled chewing movements, or uncontrolled movements of the arms and legs.
This medicine can cause changes in the heart rhythm, such as a condition called QT prolongation. It may change the way your heart beats and cause fainting or serious side effects. Contact your doctor right away if you have any symptoms of heart rhythm problems, such as fast, pounding, or irregular heartbeats.
This medicine may cause an increase in your blood sugar. If you have diabetes, you may need to check your urine or blood sugar more often. Check with your doctor right away if you have increased thirst or increased urination, or if you have any questions.
Dizziness, lightheadedness, or fainting may occur, especially when you get up from a lying or sitting position suddenly. Getting up slowly may help. If this problem continues or gets worse, check with your doctor.
This medicine may cause dizziness, drowsiness, trouble with thinking, or trouble with controlling body movements. Avoid driving, using machines, or doing anything else that could be dangerous if you are not alert, well-coordinated, or able to think well.
This medicine lowers the number of some types of blood cells in your body. Because of this, you may bleed or get infections more easily. To help with these problems, avoid being near people who are sick or have infections. Wash your hands often. Stay away from rough sports or other situations where you could be bruised, cut, or injured. Brush and floss your teeth gently. Be careful when using sharp objects, including razors and fingernail clippers.
This medicine may cause some people to be agitated, irritable, or display other abnormal behaviors. It may also cause some people to have suicidal thoughts and tendencies or to become more depressed. If you or your caregiver notice any of these side effects, tell your doctor right away.
This medicine might reduce how much you sweat. Your body could get too hot if you do not sweat enough. If your body gets too hot, you might feel dizzy, weak, tired, or confused. You might vomit or have an upset stomach. Do not get too hot while you are exercising. Avoid places that are very hot. Call your doctor if you are too hot and cannot cool down.
This medicine may increase your weight. Your doctor may need to check your weight on a regular basis while you are using this medicine. Talk to your doctor about ways to prevent weight gain.
Your doctor will need to check your progress at regular visits while you are using this medicine. Be sure to keep all appointments. Blood tests may be needed to check for any unwanted effects.