Your doctor should check you or your child's progress at regular visits to make sure this medicine is working properly and to decide if you should continue therapy. Blood tests may be needed to check for unwanted effects.
You or your child will also need to have your blood pressure and heart rate measured before starting this medicine and while you or your child are using it. If you notice any change to you or your child's recommended blood pressure, call your doctor right away. If you have questions about this, talk to your doctor.
You or your child should not use this medicine if you have used a drug for depression called an MAO inhibitor (MAOI), such as Eldepryl®, Marplan®, Nardil®, or Parnate®, in the past 14 days.
Methylphenidate may cause dizziness, drowsiness, or changes in vision. Do not drive a car, ride a bicycle, operate machinery, or do other things that might be dangerous until you know how this medicine affects you.
Methylphenidate may cause serious heart or blood vessel problems. This may be more likely in patients who have a family history of heart disease. Check with your doctor right away if you or your child have chest pain, shortness of breath, or fainting while using this medicine.
Tell your doctor right away if you or your family notices any unusual changes in behavior, such as an increase in aggression, hostility, agitation, irritability, or suicidal thinking or behaviors. Also tell your doctor if you or your child 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 to make sure that your child is growing properly.
Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines, herbal or vitamin supplements, and medicine for appetite control, asthma, colds, cough, hayfever, or sinus problems.