Ritalin Side Effects by Likelihood and Severity

COMMON side effects


If experienced, these tend to have a Severe expression

  • Fast Heartbeat
  • High Blood Pressure

If experienced, these tend to have a Less Severe expression

  • Chronic Trouble Sleeping
  • Dry Mouth
  • Feel Like Throwing Up
  • Head Pain
  • Loss Of Appetite
  • Nervous
  • Over Excitement
  • Upper Abdominal Pain

INFREQUENT side effects


If experienced, these tend to have a Severe expression

  • Angina
  • Chest Pain
  • Chronic Muscle Twitches Or Movements
  • Decreased Blood Platelets
  • Dyskinesia
  • Fever
  • Hives
  • Inflammation Of Skin Caused By An Allergy
  • Involuntary Quivering
  • Joint Pain
  • Rash
  • Sinus Irritation And Congestion

If experienced, these tend to have a Less Severe expression

  • Acute Infection Of The Nose, Throat Or Sinus
  • Aggressive Behavior
  • Cough
  • Dizzy
  • Drowsiness
  • Excessive Sweating
  • Throat Irritation
  • Throwing Up
  • Weight Loss

RARE side effects


If experienced, these tend to have a Severe expression

  • Abnormal Heart Rhythm
  • Abnormal Liver Function Tests
  • Acquired Decrease Of All Cells In The Blood
  • Anemia
  • Behaving With Excessive Cheerfulness And Activity
  • Blurred Vision
  • Continued Painful Erection
  • Decreased White Blood Cells
  • Erythema Multiforme
  • Extra Heartbeat
  • Failure To Grow
  • Feeling Agitated
  • Giant Hives
  • Hallucination
  • Having A Rapid Heart Action - Supraventricular Tachycardia
  • Having Thoughts Of Suicide
  • Heart Attack
  • Hemorrhage In The Brain
  • High Amount Of Bilirubin In The Blood
  • Inflammation Of Blood Vessels That Carry Blood In The Brain
  • Inflammation Of The Skin With Blisters
  • Life Threatening Allergic Reaction
  • Liver Damage
  • Low Platelet Count And Bleeding From Immune Response
  • Mental Disorder Resulting From Poisonous Agents
  • Mood Changes
  • Occasional Numbness, Prickling, Or Tingling Of Fingers And Toes
  • Problems With Eyesight
  • Psychosis Caused By A Drug
  • Rhabdomyolysis
  • Seizures
  • Skin Rash With Sloughing
  • Slow Heartbeat
  • Stroke
  • Tonic Clonic Seizure
  • Ventricular Premature Beats
  • Worsening Symptoms Of Tourette's Syndrome

If experienced, these tend to have a Less Severe expression

  • Altered Interest In Having Sexual Intercourse
  • Confused
  • Constriction Of Blood Vessels Of The Extremities
  • Diarrhea
  • Dilated Pupil
  • Double Vision
  • Grinding Of The Teeth
  • Hair Loss
  • Heart Throbbing Or Pounding
  • Hypertalkative
  • Inflammation Of The Nose
  • Itching
  • Migraine Headache
  • Motion Sickness
  • Muscle Pain
  • Pain In The Eye
  • Painful Periods
  • Reversible Ischemic Neurological Defect