It is very important that your doctor check your or your child's progress at regular visits to make sure the medicine is working properly. Blood and blood pressure tests may be needed to check for unwanted effects. Your doctor may occasionally stop treatment to check symptoms of ADHD.
Do not use this medicine if you are using or have used an MAO inhibitor (MAOI), such as isocarboxazid [Marplan®], linezolid [Zyvox®], phenelzine [Nardil®], selegiline [Eldepryl®], tranylcypromine [Parnate®]), within the past 14 days.
This medicine may cause serious heart or blood vessel problems. This may be more likely to occur in patients who have a family history of heart disease. Check with your doctor right away if you have chest pain, fast or uneven heartbeat, trouble breathing, or fainting while using this medicine.
Tell your doctor right away if you or your family notice any unusual changes in behavior, such as an increase in aggression, hostility, agitation, or irritability. Tell your doctor if you have hallucinations or any unusual thoughts, especially if they are new or getting worse quickly.
This medicine may cause slow growth. If your child is using this medicine, the doctor will need to keep track of your child's height and weight.
This medicine may cause some people to feel a false sense of well-being or to become dizzy, lightheaded, or less alert than they are normally. It may also cause blurred vision or other vision problems. Do not drive or do anything else that could be dangerous until you or your child know how this medicine affects you.
This medicine may cause Raynaud's phenomenon, which is a problem with blood circulation in the fingers or toes. Tell your doctor if you have tingling or pain, a cold feeling, paleness, or skin color changes in the fingers or toes, especially when exposed to cold temperatures. Call your doctor right away if you have unexplained sores or ulcers on your fingers or toes.
Check with your doctor right away if you have anxiety, restlessness, a fast heartbeat, fever, sweating, muscle spasms, twitching, nausea, vomiting, diarrhea, or see or hear things that are not there. These may be symptoms of a serious condition called serotonin syndrome. Your risk may be higher if you also take certain other medicines that affect serotonin levels in your body.
Before you have any medical tests, tell the medical doctor in charge that you are using this medicine. The results of some tests may be affected by this medicine.
Avoid drinking alcohol while using this medicine.
Use with medications that increase stomach or urine alkalinity, such as sodium bicarbonate, acetazolamide, and some thiazide diuretics (water pill) should be avoided. .
Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines, herbal (eg, St. John's wort) or vitamin supplements, and medicine for appetite control, asthma, colds, cough, hayfever, or sinus problems.