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This is an index of reports of adverse events (side effects, adverse reactions, etc.) related to Clonazepam. 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 (238)
Cases resulting in a serious event (228)
Cases resulting in death (113)
Cases resulting in life threatening events (12)
Cases resulting in hospitalization (63)
Cases resulting in disability (8)
Cases resulting in other serious reactions (81)
Below is a sample of reports where side effects / adverse reactions may be related to Clonazepam. For a complete list and/or a specific selection of reports, please use the links in the index above.
Adverse event in 55 year old male receiving Clonazepam
Reported by a pharmacist from United States on 2007-10-31
Patient: 55 year old male
Adverse reactions / side effects: Confusional State, Incoherent, Sedation, Mental Status Changes, Intentional Drug Misuse, Accidental Overdose, Hyperhidrosis, Loss of Consciousness
Adverse event resulted in: life threatening event, hospitalization
Suspect drug(s):
Acetaminophen and Hydrocodone Bitartrate
Start date: 2007-10-11
End date: 2007-10-11
Clonazepam
Indication: Anxiety
Start date: 2007-10-11
End date: 2007-10-11
Adverse event in male receiving Clonazepam
Reported by a health professional (non-physician/pharmacist) from United States on 2007-10-30
Patient: male, weighing 3.4 kg (7.5 pounds)
Adverse reactions / side effects: Brain Stem Syndrome, Metabolic Acidosis, Respiratory Failure, Hyponatraemia, Drug Withdrawal Syndrome, Pregnancy
Suspect drug(s):
Clonazepam
Indication: Drug USE FOR Unknown Indication
Olanzapine
Indication: Drug USE FOR Unknown Indication
Paroxetine HCL
Indication: Drug USE FOR Unknown Indication
Ampicillin
Adverse event in 37 year old receiving Clonazepam
Reported by a physician from United States on 2007-10-29
Patient: 37 year old
Adverse reactions / side effects: Completed Suicide, Respiratory Arrest, Cardiac Arrest
Adverse event resulted in: death
Suspect drug(s):
Clonazepam
Dosage: drugs were taken via ingestion and/or unknown route. acute on chronic.
Indication: Drug USE FOR Unknown Indication
Quetiapine Fumarate
Dosage: drugs were taken via ingestion and/or unknown route. acute on chronic.
Indication: Drug USE FOR Unknown Indication
Cocaine
Dosage: drugs were taken via ingestion and/or unknown route. acute on chronic.
Indication: Drug USE FOR Unknown Indication
Adverse event in 68 year old receiving Clonazepam
Reported by a physician from United States on 2007-10-29
Patient: 68 year old
Adverse reactions / side effects: Completed Suicide
Adverse event resulted in: death
Suspect drug(s):
Clonazepam
Dosage: route reported as ingestion.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Lorazepam
Dosage: route reported as ingestion.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Glipizide
Dosage: route reported as ingestion.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Unspecified Drugs
Indication: Drug USE FOR Unknown Indication
Adverse event in 37 year old female receiving Clonazepam
Reported by a physician from United States on 2007-10-29
Patient: 37 year old female
Adverse reactions / side effects: Completed Suicide
Adverse event resulted in: death
Suspect drug(s):
Clonazepam
Dosage: route was reported as ingestion.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Acetaminophen with Diphenhydramine
Dosage: route was reported as ingestion.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Ziprasidone HCL
Dosage: route was reported as ingestion.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Adverse event in 45 year old receiving Clonazepam
Reported by a physician from United States on 2007-10-29
Patient: 45 year old
Adverse reactions / side effects: Completed Suicide, Respiratory Arrest, Cardiac Arrest
Adverse event resulted in: death
Suspect drug(s):
Clonazepam
Dosage: route reported as ingestion.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Quetiapine Fumarate
Dosage: route reported as ingestion.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Adverse event in 45 year old receiving Clonazepam
Reported by a physician from United States on 2007-10-29
Patient: 45 year old
Adverse reactions / side effects: Death, Respiratory Arrest, Cardiac Arrest
Adverse event resulted in: death
Suspect drug(s):
Clonazepam
Dosage: route: ingestion.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Bupropion HCL
Dosage: route: ingestion.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Ethanol
Dosage: route: ingestion.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Adverse event in 74 year old receiving Clonazepam
Reported by a physician from United States on 2007-10-29
Patient: 74 year old
Adverse reactions / side effects: Completed Suicide
Adverse event resulted in: death
Suspect drug(s):
Clonazepam
Dosage: route: ingestion.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Desipramine HCL
Dosage: route: ingestion.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Mirtazapine
Dosage: route: ingestion.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Unspecified Drugs
Indication: Drug USE FOR Unknown Indication
Adverse event in 46 year old receiving Clonazepam
Reported by a physician from United States on 2007-10-29
Patient: 46 year old
Adverse reactions / side effects: Completed Suicide, Respiratory Arrest, Cardiac Arrest
Adverse event resulted in: death
Suspect drug(s):
Clonazepam
Dosage: route: ingestion. acute exposure.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Carbamazepine
Dosage: route: ingestion. acute exposure.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Mirtazapine
Dosage: route: ingestion. acute exposure.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Unspecified Drugs
Indication: Drug USE FOR Unknown Indication
Adverse event in 62 year old female receiving Clonazepam
Reported by a individual with unspecified qualification from Japan on 2007-10-29
Patient: 62 year old female
Adverse reactions / side effects: Cardio-Respiratory Arrest, Excoriation, Sudden Death, Cardiogenic Shock, Chest Injury, Fall, Haemolysis, Organ Failure
Adverse event resulted in: death
Suspect drug(s):
Comtan
Dosage: 300 mg (100 mg, 3 in 1 d) oral
Administration route: Oral
Indication: Drug Effect Decreased
Start date: 2007-08-09
Comtan
Dosage: 300 mg (100 mg, 3 in 1 d) oral
Administration route: Oral
Indication: Parkinson's Disease
Start date: 2007-08-09
Pantosin
Dosage: 300 mg oral
Administration route: Oral
Indication: Constipation
Pramipexole Dihydrochloride
Dosage: 1.5 mg oral
Administration route: Oral
Indication: Parkinson's Disease
Start date: 2005-07-07
Neodopasol
Dosage: 300 mg oral
Administration route: Oral
Indication: Parkinson's Disease
Start date: 1993-06-03
Dops
Dosage: 300 mg oral
Administration route: Oral
Indication: Hypotension
Start date: 1993-02-24
Depas
Dosage: 0.5 mg oral
Administration route: Oral
Indication: Insomnia
End date: 2007-09-01
Clonazepam
Dosage: 1 mg oral
Administration route: Oral
Indication: Hypoaesthesia
LAC B
Dosage: 3 g oral
Administration route: Oral
Indication: Constipation
Start date: 2003-07-15
Alfarol
Dosage: 0.5 mg oral
Administration route: Oral
Maglax
Dosage: 990 mg oral
Administration route: Oral
Indication: Constipation
Adverse event in 30 year old receiving Clonazepam
Reported by a physician from United States on 2007-10-29
Patient: 30 year old
Adverse reactions / side effects: Completed Suicide
Adverse event resulted in: death
Suspect drug(s):
Clonazepam
Dosage: route: ingestion. acute exposure.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Atenolol
Dosage: route: ingestion. acute exposure.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Adverse event in 20 year old receiving Clonazepam
Reported by a physician from United States on 2007-10-29
Patient: 20 year old
Adverse reactions / side effects: Drug Abuser, Respiratory Arrest, Cardiac Arrest
Adverse event resulted in: death
Suspect drug(s):
Clonazepam
Dosage: acute exposure.
Indication: Drug USE FOR Unknown Indication
Tramadol HCL
Dosage: acute exposure.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Fentanyl
Dosage: acute exposure.
Indication: Drug USE FOR Unknown Indication
Unspecified Drugs
Indication: Drug USE FOR Unknown Indication
Adverse event in 25 year old receiving Clonazepam
Reported by a physician from United States on 2007-10-29
Patient: 25 year old
Adverse reactions / side effects: Death, Drug Toxicity, Respiratory Arrest, Cardiac Arrest
Adverse event resulted in: death
Suspect drug(s):
Clonazepam
Dosage: route reported as ingestion. acute on chronic.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Amitriptyline HCL
Dosage: route reported as ingestion. acute on chronic.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Clonidine
Dosage: route reported as ingestion. acute on chronic.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Unspecified Drugs
Dosage: route: ingestion.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Adverse event in 30 year old receiving Clonazepam
Reported by a physician from United States on 2007-10-29
Patient: 30 year old
Adverse reactions / side effects: Completed Suicide
Adverse event resulted in: death
Suspect drug(s):
Clonazepam
Dosage: route: ingestion. acute exposure.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Acetaminophen
Dosage: route: ingestion. acute exposure.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Venlafaxine HCL
Dosage: route: ingestion. acute exposure. drug reported as venlafaxine (long-acting).
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Unspecified Drugs
Indication: Drug USE FOR Unknown Indication
Adverse event in 32 year old receiving Clonazepam
Reported by a physician from United States on 2007-10-29
Patient: 32 year old
Adverse reactions / side effects: Death, Respiratory Arrest, Cardiac Arrest
Adverse event resulted in: death
Suspect drug(s):
Clonazepam
Dosage: route reported as ingestion and or unknown.
Indication: Drug USE FOR Unknown Indication
Methadone HCL
Dosage: route reported as ingestion and or unknown.
Indication: Drug USE FOR Unknown Indication
Alprazolam
Dosage: route reported as ingestion and or unknown.
Indication: Drug USE FOR Unknown Indication
Unspecified Drugs
Indication: Drug USE FOR Unknown Indication
Adverse event in 55 year old receiving Clonazepam
Reported by a physician from United States on 2007-10-29
Patient: 55 year old
Adverse reactions / side effects: Completed Suicide, Respiratory Arrest, Cardiac Arrest
Adverse event resulted in: death
Suspect drug(s):
Clonazepam
Dosage: route: ingestion.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Quetiapine Fumarate
Dosage: route: ingestion.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Cyclobenzaprine HCL
Dosage: route: ingestion.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Unspecified Drugs
Indication: Drug USE FOR Unknown Indication
Adverse event in 50 year old receiving Clonazepam
Reported by a physician from United States on 2007-10-29
Patient: 50 year old
Adverse reactions / side effects: Drug Toxicity, Completed Suicide, Respiratory Arrest, Cardiac Arrest
Adverse event resulted in: death
Suspect drug(s):
Clonazepam
Dosage: route: ingestion. chronicity: acute exposure.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Quetiapine Fumarate
Dosage: route: ingestion. chronicity: acute exposure.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Paroxetine HCL
Dosage: route: ingestion. chronicity: acute exposure.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Adverse event in 57 year old receiving Clonazepam
Reported by a physician from United States on 2007-10-29
Patient: 57 year old
Adverse reactions / side effects: Death
Adverse event resulted in: death
Suspect drug(s):
Clonazepam
Dosage: route reported as ingestion.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Verapamil
Dosage: route reported as ingestion.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Citalopram Hydrobromide
Dosage: route reported as ingestion.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Adverse event in 23 year old receiving Clonazepam
Reported by a physician from United States on 2007-10-29
Patient: 23 year old
Adverse reactions / side effects: Completed Suicide, Respiratory Arrest, Cardiac Arrest
Adverse event resulted in: death
Suspect drug(s):
Clonazepam
Dosage: route reported as ingestion.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Methadone HCL
Dosage: route reported as ingestion.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Tizanidine HCL
Dosage: route reported as ingestion.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Adverse event in 42 year old receiving Clonazepam
Reported by a physician from United States on 2007-10-29
Patient: 42 year old
Adverse reactions / side effects: Respiratory Arrest, Intentional Drug Misuse, Cardiac Arrest
Adverse event resulted in: death
Suspect drug(s):
Clonazepam
Dosage: acute exposure. route: ingestion
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Lorazepam
Dosage: acute exposure. route: ingestion
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Acetaminophen
Dosage: acute exposure. route: ingestion
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Adverse event in 57 year old receiving Clonazepam
Reported by a physician from United States on 2007-10-29
Patient: 57 year old
Adverse reactions / side effects: Death, Respiratory Arrest, Cardiac Arrest
Adverse event resulted in: death
Suspect drug(s):
Clonazepam
Adverse event in 21 year old male receiving Clonazepam
Reported by a physician from United States on 2007-10-29
Patient: 21 year old male
Adverse reactions / side effects: Completed Suicide
Adverse event resulted in: death, hospitalization
Suspect drug(s):
Clonazepam
Dosage: route: ingestion.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Acetaminophen
Dosage: route: ingestion.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Ethanol
Dosage: route: ingestion.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Aspirin
Dosage: route: ingestion.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Adverse event in 48 year old receiving Clonazepam
Reported by a physician from United States on 2007-10-29
Patient: 48 year old
Adverse reactions / side effects: Completed Suicide
Adverse event resulted in: death
Suspect drug(s):
Clonazepam
Dosage: route reported as ingestion.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Lamotrigine
Dosage: route reported as ingestion.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Adverse event in 45 year old receiving Clonazepam
Reported by a physician from United States on 2007-10-29
Patient: 45 year old
Adverse reactions / side effects: Completed Suicide, Respiratory Arrest, Cardiac Arrest
Adverse event resulted in: death
Suspect drug(s):
Clonazepam
Dosage: route reported as ingestion.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Oxycodone HCL
Dosage: route reported as ingestion.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Cyclobenzaprine HCL
Dosage: route reported as ingestion.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Unspecified Drugs
Indication: Drug USE FOR Unknown Indication
Adverse event in 45 year old receiving Clonazepam
Reported by a physician from United States on 2007-10-29
Patient: 45 year old
Adverse reactions / side effects: Drug Toxicity, Completed Suicide
Adverse event resulted in: death
Suspect drug(s):
Clonazepam
Dosage: route: ingestion. acute on chronic.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Temazepam
Dosage: route: ingestion. acute on chronic.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Paroxetine HCL
Dosage: route: ingestion. acute on chronic.
Administration route: Oral
Indication: Drug USE FOR Unknown Indication
Unspecified Drugs
Indication: Drug USE FOR Unknown Indication
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