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Side Effects

List Ritalin side effects by likelihood and severity.

The following side effects are associated with Ritalin:

Common side effects of Ritalin:

  • Fast HeartbeatSevere
  • High Blood PressureSevere
  • Chronic Trouble SleepingLess Severe
  • Dry MouthLess Severe
  • Feel Like Throwing UpLess Severe
  • Head PainLess Severe
  • Loss of AppetiteLess Severe
  • NervousLess Severe
  • Over ExcitementLess Severe
  • Upper Abdominal PainLess Severe

Infrequent side effects of Ritalin:

  • AnginaSevere
  • Chest PainSevere
  • Chronic Muscle Twitches or MovementsSevere
  • Decreased Blood PlateletsSevere
  • FeverSevere
  • HivesSevere
  • Inflammation of Skin caused by an AllergySevere
  • Involuntary QuiveringSevere
  • Joint PainSevere
  • RashSevere
  • Reaction due to an AllergySevere
  • Sinus Irritation and CongestionSevere
  • Voluntary Movement DifficultySevere
  • Acute Infection of the Nose, Throat or SinusLess Severe
  • Aggressive BehaviorLess Severe
  • CoughLess Severe
  • DizzyLess Severe
  • DrowsinessLess Severe
  • Excessive SweatingLess Severe
  • Stomach CrampsLess Severe
  • Throat IrritationLess Severe
  • Throwing UpLess Severe
  • Weight LossLess Severe

Rare side effects of Ritalin:

  • Abnormal Heart RhythmSevere
  • Abnormal Liver Function TestsSevere
  • AnemiaSevere
  • Behaving with Excessive Cheerfulness and ActivitySevere
  • Blurred VisionSevere
  • Continued Painful ErectionSevere
  • Decreased White Blood CellsSevere
  • Erythema MultiformeSevere
  • Failure to GrowSevere
  • Feeling RestlessSevere
  • FitSevere
  • Giant HivesSevere
  • HallucinationSevere
  • Having Thoughts of SuicideSevere
  • Heart AttackSevere
  • Hemorrhage in the BrainSevere
  • High Amount of Bilirubin in the BloodSevere
  • Inflammation of Blood Vessels that Carry Blood in the BrainSevere
  • Inflammation of the Skin with BlistersSevere
  • Life Threatening Allergic ReactionSevere
  • Low Platelet Count and Bleeding from Immune ResponseSevere
  • Mental Disorder Resulting from Poisonous AgentsSevere
  • Mental Disorder with Loss of Normal Personality & RealitySevere
  • Mood ChangesSevere
  • Occasional Numbness, Prickling, or Tingling of Fingers and ToesSevere
  • Problems with EyesightSevere
  • SeizuresSevere
  • Serious Muscle Damage that may Lead to Kidney FailureSevere
  • Skin Rash with SloughingSevere
  • StrokeSevere
  • Worsening Symptoms of Tourette's SyndromeSevere
  • Altered Interest in Having Sexual IntercourseLess Severe
  • ConfusedLess Severe
  • Constriction of Blood Vessels of the ExtremitiesLess Severe
  • DiarrheaLess Severe
  • Dilated PupilLess Severe
  • Double VisionLess Severe
  • Grinding of the TeethLess Severe
  • Hair LossLess Severe
  • Heart Throbbing or PoundingLess Severe
  • HypertalkativeLess Severe
  • Inflammation of the NoseLess Severe
  • ItchingLess Severe
  • Migraine HeadacheLess Severe
  • Motion SicknessLess Severe
  • Muscle PainLess Severe
  • Pain in the EyeLess Severe
  • Painful PeriodsLess Severe
  • Reversible Ischemic Neurological DefectLess Severe

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, expect 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.

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