Who should not take Ritalin?

The following conditions are contraindicated with this drug. Check with your physician if you have any of the following:


  • thyrotoxicosis
  • overactive thyroid gland
  • anemia
  • decreased white blood cells
  • behaving with excessive cheerfulness and activity
  • Manic-Depression
  • psychotic disorder
  • having thoughts of suicide
  • alcoholism
  • addiction to a drug
  • chronic muscle twitches or movements
  • Tourette's
  • uncontrolled epilepsy
  • lower seizure threshold
  • increased pressure in eyes
  • high blood pressure
  • heart attack within the last 30 days
  • angina
  • coronary artery disease
  • disease of the muscle of the heart with enlargement
  • abnormal heart rhythm
  • chronic heart failure
  • abnormal EKG with QT changes from birth
  • stroke
  • occasional numbness
  • prickling
  • or tingling of fingers and toes
  • peripheral vascular disease
  • continued painful erection
  • abnormal liver function tests
  • structural disorder of heart
  • Acrocyanosis
  • anxiety disorder


  • Methylphenidate Analogues

Selected from data included with permission and copyrighted by First Databank, Inc. This copyrighted material has been downloaded from a licensed data provider and is not for distribution, except as may be authorized by the applicable terms of use.

CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgment of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any drug, changing any diet or commencing or discontinuing any course of treatment.