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This is an index of reports of adverse events (side effects, adverse reactions, etc.) related to Ritalin (Methylphenidate). Click on the relevant link below to view a selection of reports according to the event's seriousness level and/or the nature of the side effect / adverse reaction. Or scroll down to view a sample of recent reports further on this page.
Our database includes reports from Jan 2007 to Dec 2007. The information is not vetted and should not be cosidered as verified clinical evidence.
All cases (143)
Cases resulting in a serious event (138)
Cases resulting in death (9)
Cases resulting in life threatening events (9)
Cases resulting in hospitalization (48)
Cases resulting in disability (1)
Cases resulting in other serious reactions (93)
Below is a sample of reports where side effects / adverse reactions may be related to Ritalin (Methylphenidate). For a complete list and/or a specific selection of reports, please use the links in the index above.
Adverse event in male receiving Ritalin (Methylphenidate)
Reported by a physician from France on 2007-10-29
Patient: male
Adverse reactions / side effects: Electrocardiogram QT Prolonged, Supraventricular Extrasystoles
Suspect drug(s):
Ritalin (Methylphenidate)
Adverse event in female receiving Ritalin (Methylphenidate)
Reported by a physician from Japan on 2007-10-29
Patient: female
Adverse reactions / side effects: Suicide Attempt
Adverse event resulted in: life threatening event
Suspect drug(s):
Ritalin (Methylphenidate)
Adverse event in 90 year old female receiving Ritalin (Methylphenidate)
Reported by a pharmacist from Japan on 2007-10-29
Patient: 90 year old female
Adverse reactions / side effects: Death
Adverse event resulted in: death
Suspect drug(s):
Ritalin (Methylphenidate)
Adverse event in female receiving Ritalin (Methylphenidate)
Reported by a consumer/non-health professional from United States on 2007-10-29
Patient: female
Adverse reactions / side effects: Thinking Abnormal, Pain in Extremity, Drug Withdrawal Syndrome, Depressed Mood
Suspect drug(s):
Ritalin (Methylphenidate)
Adverse event in 32 year old female receiving Ritalin (Methylphenidate)
Reported by a individual with unspecified qualification from United States on 2007-10-18
Patient: 32 year old female
Adverse reactions / side effects: Movement Disorder, Urinary Tract Infection, Dyskinesia
Adverse event resulted in: hospitalization
Suspect drug(s):
Neurontin
Dosage: 3600 mg (1200 mg, 3 in 1d)
End date: 2007-04-27
HKI-272 (Hki-272)
Dosage: 240 mg (240, mg, 1 in 1 d), oral
Administration route: Oral
Indication: Breast Cancer Metastatic
Start date: 2007-02-15
End date: 2007-04-25
Effexor
Dosage: 37.5 mg (37.5 mg, 1 in 1 d), oral
Administration route: Oral
Methadone HCL
Dosage: 30 mg, oral
Administration route: Oral
Ritalin
Dosage: 10 mg (5 mg, 2 in 1 d), oral
Administration route: Oral
Start date: 2007-04-13
End date: 2007-04-20
Other drugs received by patient: Levaquin; Lidoderm; Dilaudid (Hydromophone Hydrochloride); Ativan; Motrin; Colace (Docusate Sodium); Magnesium (Magnesium)
Adverse event in 46 year old male receiving Ritalin (Methylphenidate)
Reported by a pharmacist from Japan on 2007-10-17
Patient: 46 year old male, weighing 70.0 kg (154.0 pounds)
Adverse reactions / side effects: Blood Creatine Phosphokinase Increased, Intubation, Alanine Aminotransferase Increased, Blood Lactate Dehydrogenase Increased, Sudden Death, Blood Potassium Increased, Convulsion, Loss of Consciousness, Cardio-Respiratory Arrest, Cardiac Massage, Aspartate Aminotransferase Increased, Electrocardiogram Abnormal, Blood Sodium Increased, Blood Creatinine Increased, Blood Glucose Increased
Adverse event resulted in: death
Suspect drug(s):
Ritalin (Methylphenidate)
Other drugs received by patient: Agents FOR Hyperlipidemias
Adverse event in 42 year old male receiving Ritalin (Methylphenidate)
Reported by a individual with unspecified qualification on 2007-10-12
Patient: 42 year old male
Adverse reactions / side effects: Homicide, Pyromania, Drug Abuser, Hallucination, Delusion
Suspect drug(s):
Ritalin
Dosage: 10 mg, qd
Administration route: Oral
Start date: 2004-07-01
End date: 2004-10-01
Ritalin
Dosage: 30 mg/d
Administration route: Oral
Start date: 2004-10-01
Ritalin
Dosage: 700 mg/day
Administration route: Oral
Start date: 2006-01-13
End date: 2006-01-13
Adverse event in 15 year old male receiving Ritalin (Methylphenidate)
Reported by a consumer/non-health professional from United Kingdom on 2007-10-12
Patient: 15 year old male, weighing 73.0 kg (160.6 pounds)
Adverse reactions / side effects: Tremor
Suspect drug(s):
Ritalin
Dosage: 50mg daily
Administration route: Oral
Indication: Attention Deficit / Hyperactivity Disorder
Ritalin
Dosage: 60mg daily
Administration route: Oral
Start date: 2007-01-01
Adverse event in 12 year old male receiving Ritalin (Methylphenidate)
Reported by a physician from Japan on 2007-10-10
Patient: 12 year old male
Adverse reactions / side effects: Drug Eruption, Hepatic Function Abnormal, Lymphadenopathy, Pruritus, Skin Exfoliation, Alanine Aminotransferase Increased, Drug Rash With Eosinophilia and Systemic Symptoms, Eosinophil Count Increased, Aspartate Aminotransferase Increased
Suspect drug(s):
Ritalin
Dosage: 27.5 mg/d
Administration route: Oral
Indication: Asperger's Disorder
Start date: 2007-08-13
End date: 2007-08-19
Tegretol
Dosage: 400 mg/d
Administration route: Oral
Indication: Complex Partial Seizures
Start date: 2007-08-03
End date: 2007-08-28
Adverse event in 22 year old male receiving Ritalin (Methylphenidate)
Reported by a physician from Denmark on 2007-10-05
Patient: 22 year old male
Adverse reactions / side effects: Palpitations, Ventricular Dysfunction, Atrial Fibrillation
Adverse event resulted in: hospitalization
Suspect drug(s):
Ritalin (Methylphenidate)
Adverse event in 25 year old male receiving Ritalin (Methylphenidate)
Reported by a individual with unspecified qualification from Japan on 2007-10-03
Patient: 25 year old male
Adverse reactions / side effects: Intentional Overdose, Drug Abuser, Aggression, Delusion, Fatigue, Insomnia, Completed Suicide, Drug Dependence
Adverse event resulted in: death
Suspect drug(s):
Ritalin
Indication: Depression
End date: 2005-01-01
Ritalin
Dosage: 80 mg, once/single
Start date: 2005-01-01
End date: 2005-01-01
Adverse event in receiving Ritalin (Methylphenidate)
Reported by a physician from Japan on 2007-10-03
Patient:
Adverse reactions / side effects: Hypoglycaemia
Adverse event resulted in: hospitalization
Suspect drug(s):
Ritalin (Methylphenidate)
Other drugs received by patient: Basen
Adverse event in receiving Ritalin (Methylphenidate)
Reported by a pharmacist from Japan on 2007-10-03
Patient:
Adverse reactions / side effects: Sudden Death
Adverse event resulted in: death
Suspect drug(s):
Ritalin (Methylphenidate)
Adverse event in 22 year old male receiving Ritalin (Methylphenidate)
Reported by a consumer/non-health professional on 2007-10-02
Patient: 22 year old male, weighing 92.0 kg (202.4 pounds)
Adverse reactions / side effects: Thrombosis, Malaise, Chest Pain, Blood Cholesterol Increased, Angioplasty, Hypertension, Infarction
Adverse event resulted in: hospitalization
Suspect drug(s):
Ritalin
Dosage: 20 mg, qd
Administration route: Oral
Diovan HCT
Dosage: 80/12.5 mg
Administration route: Oral
Indication: Hypertension
Start date: 2005-01-01
End date: 2006-01-01
Other drugs received by patient: Paroxetine
Adverse event in 35 year old female receiving Ritalin (Methylphenidate)
Reported by a physician from Japan on 2007-10-02
Patient: 35 year old female
Adverse reactions / side effects: Overdose, Nausea, Suicide Attempt
Adverse event resulted in: hospitalization
Suspect drug(s):
Ritalin
Dosage: 1000 mg, once/single
Administration route: Oral
Indication: Suicide Attempt
Acetaminophen
Dosage: 180 df, once/single
Administration route: Oral
Indication: Suicide Attempt
Adverse event in receiving Ritalin (Methylphenidate)
Reported by a pharmacist from Japan on 2007-10-02
Patient:
Adverse reactions / side effects: Sudden Death
Adverse event resulted in: death
Suspect drug(s):
Ritalin (Methylphenidate)
Adverse event in 17 year old female receiving Ritalin (Methylphenidate)
Reported by a individual with unspecified qualification from United States on 2007-10-01
Patient: 17 year old female, weighing 55.3 kg (121.7 pounds)
Adverse reactions / side effects: Aplastic Anaemia, Ill-Defined Disorder
Adverse event resulted in: life threatening event
Suspect drug(s):
Ritalin
Dosage: 20mg tablet 3 per day po
Administration route: Oral
Indication: Attention Deficit / Hyperactivity Disorder
Start date: 1997-08-01
End date: 2007-01-15
Methylphenidate 20mg Novartis
Dosage: 20 mg tablet 3 per day po
Administration route: Oral
Adverse event in 51 year old male receiving Ritalin (Methylphenidate)
Reported by a individual with unspecified qualification from United States on 2007-07-31
Patient: 51 year old male, weighing 70.7 kg (155.6 pounds)
Adverse reactions / side effects: Electroencephalogram Abnormal, Overdose, Drug Administration Error, Convulsion
Adverse event resulted in: life threatening event, hospitalization
Suspect drug(s):
Lamictal
Dosage: 600 mg am 400 mg pm
Administration route: Oral
Indication: Epilepsy
Lamictal
Dosage: 400 mg, bid
Administration route: Oral
Trazodone HCL
Dosage: 300 mg, qhs
Ritalin
Dosage: 5 mg, bid
Administration route: Oral
Other drugs received by patient: Strattera; Phenobarbitone; Keppra; Flexeril; Zocor
Adverse event in female receiving Ritalin (Methylphenidate)
Reported by a consumer/non-health professional from Germany on 2007-07-31
Patient: female
Adverse reactions / side effects: TRI-Iodothyronine Increased, Condition Aggravated, Hyperthyroidism, Thyroxine Increased
Suspect drug(s):
Ritalin (Methylphenidate)
Adverse event in 11 year old male receiving Ritalin (Methylphenidate)
Reported by a consumer/non-health professional from South Africa on 2007-07-30
Patient: 11 year old male
Adverse reactions / side effects: Somnolence, Epilepsy
Suspect drug(s):
Ritalin (Methylphenidate)
Adverse event in 11 year old male receiving Ritalin (Methylphenidate)
Reported by a consumer/non-health professional from South Africa on 2007-07-27
Patient: 11 year old male
Adverse reactions / side effects: Somnolence, Epilepsy
Suspect drug(s):
Ritalin (Methylphenidate)
Adverse event in female receiving Ritalin (Methylphenidate)
Reported by a physician from Japan on 2007-07-23
Patient: female
Adverse reactions / side effects: Diarrhoea, Nausea, Photophobia, Dizziness, Headache
Suspect drug(s):
Ritalin (Methylphenidate)
Adverse event in 36 year old female receiving Ritalin (Methylphenidate)
Reported by a consumer/non-health professional from Brazil on 2007-07-23
Patient: 36 year old female
Adverse reactions / side effects: Anxiety, Heart Rate Abnormal
Suspect drug(s):
Ritalin
Dosage: 20 mg/day
Administration route: Oral
Indication: Attention Deficit / Hyperactivity Disorder
Ritalin
Dosage: 10 mg/day
Administration route: Oral
Other drugs received by patient: Topamax; Wellbutrin
Adverse event in 84 year old female receiving Ritalin (Methylphenidate)
Reported by a health professional (non-physician/pharmacist) from Germany on 2007-07-20
Patient: 84 year old female
Adverse reactions / side effects: Electrocardiogram ST-T Change, Peripheral Coldness, Blood Creatine Phosphokinase Increased, Drug Interaction, Hyperhidrosis, Sinus Bradycardia, Chest Pain, Pulmonary Oedema, Dizziness, Arteriospasm Coronary, Nodal Arrhythmia, Dyspnoea, Coronary Artery Stenosis, Hypotension, Cardiogenic Shock, Flushing, Presyncope, Ejection Fraction Decreased, Electrocardiogram ST Segment Elevation
Adverse event resulted in: life threatening event, hospitalization
Suspect drug(s):
Memantine HCL
Dosage: 10 mg bid po
Administration route: Oral
Indication: Dementia Alzheimer's Type
Diltiazem
Dosage: 120 mg qd
Donepezil HCL
Dosage: 5 mg bid
Indication: Dementia Alzheimer's Type
Ritalin
Dosage: 5 mg qd
Indication: Fatigue
Ritalin
Dosage: 5 mg qd
Indication: Social Avoidant Behaviour
Other drugs received by patient: Metoprolol Extended-Release (Metoprolol); Simvastatin; Gemfibrozil; Spironolactone; Thyroxine ^aps^ (Levothyroxine Sodium); Conjugated Estrogens (Estrogens Conjugated); Alprazolam
Adverse event in male receiving Ritalin (Methylphenidate)
Reported by a consumer/non-health professional from Sweden on 2007-07-19
Patient: male
Adverse reactions / side effects: Epilepsy
Suspect drug(s):
Ritalin (Methylphenidate)
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