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This is an index of reports of adverse events (side effects, adverse reactions, etc.) related to Symmetrel (Amantadine). 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 all available reports.
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 (18)
Cases resulting in a serious event (18)
Cases resulting in death (1)
Cases resulting in life threatening events (5)
Cases resulting in hospitalization (11)
Cases resulting in disability (4)
Cases resulting in other serious reactions (6)
Adverse event in 51 year old female receiving Symmetrel (Amantadine)
Reported by a physician from Japan on 2007-10-31
Patient: 51 year old female
Adverse reactions / side effects: Hyperventilation, Anxiety, Irritability, Paranoia, Hallucination, Delusion, Hypertonia
Adverse event resulted in: hospitalization
Suspect drug(s):
Requip
Dosage: .5mg three times per day
Administration route: Oral
Indication: Parkinsonism
Start date: 2007-09-28
End date: 2007-10-01
Symmetrel
Dosage: 50mg three times per day
Administration route: Oral
Indication: Parkinsonism
Start date: 2007-09-22
End date: 2007-10-01
Excegran
Dosage: 100mg per day
Administration route: Oral
Indication: Parkinsonism
Start date: 2007-09-20
End date: 2007-10-01
Other drugs received by patient: Cabergoline; Neodopaston
Adverse event in 51 year old female receiving Symmetrel (Amantadine)
Reported by a physician from Japan on 2007-10-25
Patient: 51 year old female
Adverse reactions / side effects: Hyperventilation, Anxiety, Irritability, Paranoia, Hallucination, Delusion, Hypertonia
Adverse event resulted in: hospitalization
Suspect drug(s):
Requip
Dosage: .5mg three times per day
Administration route: Oral
Indication: Parkinsonism
Start date: 2007-09-28
End date: 2007-10-01
Symmetrel
Dosage: 50mg three times per day
Administration route: Oral
Indication: Parkinsonism
Start date: 2007-09-22
End date: 2007-10-01
Excegran
Dosage: 100mg per day
Administration route: Oral
Indication: Parkinsonism
Start date: 2007-09-20
End date: 2007-10-01
Other drugs received by patient: Cabergoline; Neodopaston
Adverse event in 77 year old female receiving Symmetrel (Amantadine)
Reported by a individual with unspecified qualification from Japan on 2007-10-10
Patient: 77 year old female
Adverse reactions / side effects: Hallucination, Visual, Stomach Discomfort, Torticollis, Posture Abnormal, Decreased Appetite
Suspect drug(s):
Symmetrel
Dosage: 1 tablet/day
Administration route: Oral
Indication: Parkinson's Disease
Start date: 2002-10-18
End date: 2004-06-04
Trihexyphenidyl Hydrochloride
Dosage: 1 tablet/day
Administration route: Oral
Indication: Parkinson's Disease
Start date: 2002-09-02
Cabergoline
Dosage: 1 tablet/day
Administration route: Oral
Indication: Parkinson's Disease
Start date: 2002-09-01
Other drugs received by patient: Alosenn; Depas; Parlodel
Adverse event in 72 year old female receiving Symmetrel (Amantadine)
Reported by a physician from Japan on 2007-07-19
Patient: 72 year old female
Adverse reactions / side effects: Mydriasis, Sudden Cardiac Death, Cardiac Arrest
Adverse event resulted in: death
Suspect drug(s):
Zonisamide
Dosage: double blind, 1 in 1 d, oral
Administration route: Oral
Indication: Parkinson's Disease
Start date: 2007-04-11
End date: 2007-04-11
Symmetrel
Dosage: oral
Administration route: Oral
Indication: Parkinson's Disease
Start date: 2007-04-21
Neodopasol (Madopar)
Dosage: oral
Indication: Parkinson's Disease
Start date: 2007-04-21
Cabergoline
Indication: Parkinson's Disease
Luprac (Torasemide)
Indication: Oedema
Other drugs received by patient: Ferromia (Ferrous Citrate); Omeprazole; Dops (Droxidopa); Aricept; Gasmotin (Mosapride Citrate)
Adverse event in 77 year old female receiving Symmetrel (Amantadine)
Reported by a individual with unspecified qualification from Japan on 2007-07-17
Patient: 77 year old female
Adverse reactions / side effects: Hallucination, Visual, Posture Abnormal, Torticollis, Decreased Appetite
Suspect drug(s):
Parlodel
Dosage: 3 tablets/day
Administration route: Oral
Indication: Parkinson's Disease
Start date: 2005-09-01
End date: 2006-10-10
Symmetrel
Dosage: 1 tablet/day
Administration route: Oral
Indication: Parkinson's Disease
Start date: 2002-09-01
Trihexyphenidyl Hydrochloride
Dosage: 1 tablet/day
Administration route: Oral
Indication: Parkinson's Disease
Start date: 2002-09-01
Cabergoline
Dosage: 1 tablet/day
Administration route: Oral
Indication: Parkinson's Disease
Start date: 2002-09-01
Adverse event in 77 year old female receiving Symmetrel (Amantadine)
Reported by a individual with unspecified qualification from Japan on 2007-07-17
Patient: 77 year old female
Adverse reactions / side effects: Hallucination, Visual, Posture Abnormal, Torticollis, Decreased Appetite
Suspect drug(s):
Parlodel
Dosage: 3 tablets/day
Administration route: Oral
Indication: Parkinson's Disease
Start date: 2005-09-01
End date: 2006-10-10
Symmetrel
Dosage: 1 tablet/day
Administration route: Oral
Indication: Parkinson's Disease
Start date: 2002-09-01
Trihexyphenidyl Hydrochloride
Dosage: 1 tablet/day
Administration route: Oral
Indication: Parkinson's Disease
Start date: 2002-09-01
Cabergoline
Dosage: 1 tablet/day
Administration route: Oral
Indication: Parkinson's Disease
Start date: 2002-09-01
Adverse event in 77 year old female receiving Symmetrel (Amantadine)
Reported by a individual with unspecified qualification from Japan on 2007-07-06
Patient: 77 year old female
Adverse reactions / side effects: Hallucination, Visual, Torticollis, Decreased Appetite
Suspect drug(s):
Parlodel
Dosage: 3 df/day
Administration route: Oral
Indication: Parkinson's Disease
End date: 2006-10-01
Symmetrel
Dosage: 1 df/day
Administration route: Oral
Indication: Parkinson's Disease
Start date: 2002-09-01
Adverse event in female receiving Symmetrel (Amantadine)
Reported by a physician from Japan on 2007-06-29
Patient: female
Adverse reactions / side effects: Electrocardiogram QT Prolonged, Torsade DE Pointes
Adverse event resulted in: life threatening event, hospitalization
Suspect drug(s):
Norvasc
Dosage: daily dose:5mg
Administration route: Oral
Indication: Hypertension
Symmetrel
Dosage: daily dose:150mg
Administration route: Oral
Indication: Parkinsonism
Gaster
Dosage: daily dose:20mg
Administration route: Oral
Indication: Gastric Ulcer
Pletal
Dosage: daily dose:200mg
Administration route: Oral
Other drugs received by patient: Diovan; Lipitor; Cabaser; Madopar; Ferromia; Warfarin Sodium
Adverse event in 78 year old female receiving Symmetrel (Amantadine)
Reported by a individual with unspecified qualification from Japan on 2007-06-21
Patient: 78 year old female
Adverse reactions / side effects: Hallucination, Visual
Suspect drug(s):
Comtan
Dosage: oral
Administration route: Oral
Indication: Parkinson's Disease
Symmetrel
Dosage: 100 mg oral
Administration route: Oral
Other drugs received by patient: Benecid; Cabaser; Sifrol; Selegiline HCL
Adverse event in male receiving Symmetrel (Amantadine)
Reported by a consumer/non-health professional from Japan on 2007-04-06
Patient: male
Adverse reactions / side effects: Drug Ineffective, Depressed Level of Consciousness, Headache, Pyrexia, Amnesia
Suspect drug(s):
Ritalin
Dosage: 20 mg/day
Administration route: Oral
Indication: Attention Deficit / Hyperactivity Disorder
End date: 2007-01-01
Symmetrel
Administration route: Oral
Indication: Attention Deficit / Hyperactivity Disorder
Start date: 2007-01-01
Other drugs received by patient: Parlodel; Betamac; Depakene; Toledomin; Amoxan; Lexotan; Amoban; Thiamine HCL
Adverse event in 74 year old male receiving Symmetrel (Amantadine)
Reported by a consumer/non-health professional from South Africa on 2007-03-13
Patient: 74 year old male
Adverse reactions / side effects: Cardiac Discomfort, Angina Pectoris, Prescribed Overdose, Blood Pressure Decreased, Feeling Abnormal
Adverse event resulted in: hospitalization
Suspect drug(s):
Parlodel
Dosage: 2.5 mg, tid
Administration route: Oral
Indication: Parkinson's Disease
Start date: 2007-02-14
End date: 2007-02-16
Symmetrel
Dosage: 200 mg, qd
Administration route: Oral
Indication: Parkinson's Disease
Start date: 2007-02-14
End date: 2007-02-16
Other drugs received by patient: Carbilev
Adverse event in 74 year old male receiving Symmetrel (Amantadine)
Reported by a consumer/non-health professional from South Africa on 2007-03-01
Patient: 74 year old male
Adverse reactions / side effects: Cardiac Discomfort, Angina Pectoris, Prescribed Overdose, Blood Pressure Decreased, Feeling Abnormal
Adverse event resulted in: hospitalization
Suspect drug(s):
Parlodel
Dosage: 2.5 mg, tid
Administration route: Oral
Indication: Parkinson's Disease
Start date: 2007-02-14
End date: 2007-02-16
Symmetrel
Dosage: 200 mg, qd
Administration route: Oral
Indication: Parkinson's Disease
Start date: 2007-02-14
End date: 2007-02-16
Other drugs received by patient: Carbilev
Adverse event in 67 year old female receiving Symmetrel (Amantadine)
Reported by a individual with unspecified qualification from Japan on 2007-02-23
Patient: 67 year old female, weighing 51.0 kg (112.2 pounds)
Adverse reactions / side effects: Weight Decreased, Contusion, Head Injury, Urinary Incontinence, Drug Interaction, Parkinsonism, Fall, Constipation, Cardiomegaly, Cerebellar Atrophy, Hypokinesia, Neck Pain, Blood Cholesterol Increased, Urinary Retention, Autonomic Nervous System Imbalance, Torticollis, Dysstasia, Syncope, Gait Disturbance, Blood Pressure Decreased
Adverse event resulted in: hospitalization
Suspect drug(s):
Symmetrel
Dosage: 50 mg, bid
Administration route: Oral
Indication: Parkinsonism
Start date: 1995-12-06
End date: 1996-07-10
Trihexyphenidyl Hydrochloride
Dosage: 2 mg, qd
Administration route: Oral
Indication: Parkinsonism
Start date: 1996-04-10
End date: 2004-06-18
Levodopa W / Benserazide /
Dosage: 200 mg/day
Administration route: Oral
Indication: Parkinsonism
Start date: 1995-01-01
End date: 1995-01-01
Parlodel
Dosage: 2.5 mg, qd
Administration route: Oral
Indication: Parkinsonism
Start date: 1995-11-01
End date: 1996-03-05
Parlodel
Dosage: 2.5 mg, bid
Administration route: Oral
Start date: 1996-03-06
End date: 1996-07-10
Talipexole
Dosage: 2.0 mg/day
Administration route: Oral
Start date: 1995-01-01
End date: 1995-01-01
Talipexole
Dosage: 2.6 mg/day
Start date: 1996-10-24
Carbidopa
Administration route: Oral
Start date: 1995-01-01
End date: 1995-01-01
Carbidopa
Dosage: 200 mg/day
Start date: 2006-10-26
Other drugs received by patient: Distigmine Bromide; Neodopasol
Adverse event in 67 year old female receiving Symmetrel (Amantadine)
Reported by a individual with unspecified qualification from Japan on 2007-02-13
Patient: 67 year old female, weighing 51.0 kg (112.2 pounds)
Adverse reactions / side effects: Autonomic Nervous System Imbalance, Head Injury, Drug Interaction, Cerebral Atrophy, Torticollis, Parkinsonism, Fall, Constipation, Cerebellar Atrophy, Dysstasia, Micturition Disorder
Adverse event resulted in: hospitalization
Suspect drug(s):
Symmetrel
Dosage: 50 mg, bid
Administration route: Oral
Indication: Parkinsonism
Start date: 1995-12-06
End date: 1996-07-10
Trihexyphenidyl Hydrochloride
Dosage: 2 mg, qd
Administration route: Oral
Indication: Parkinsonism
Start date: 1996-04-10
End date: 2004-06-18
Levodopa W / Benserazide /
Administration route: Oral
Indication: Parkinsonism
Start date: 1995-01-01
End date: 1995-01-01
Parlodel
Dosage: 2.5 mg, qd
Administration route: Oral
Indication: Parkinsonism
Start date: 1995-11-01
End date: 1996-03-05
Parlodel
Dosage: 2.5 mg, bid
Administration route: Oral
Start date: 1996-03-06
End date: 1996-07-10
Talipexole
Administration route: Oral
Start date: 1995-01-01
End date: 1995-01-01
Carbidopa
Administration route: Oral
Start date: 1995-01-01
End date: 1995-01-01
Other drugs received by patient: Neodopasol
Adverse event in male receiving Symmetrel (Amantadine)
Reported by a physician from Japan on 2007-02-02
Patient: male, weighing 66.3 kg (145.9 pounds)
Adverse reactions / side effects: Pneumonia, Rhabdomyolysis, Cerebral Infarction
Adverse event resulted in: life threatening event, hospitalization, disablity
Suspect drug(s):
BI-Sifrol Tablets
Administration route: Oral
Indication: Parkinson's Disease
Start date: 2006-04-10
Artane
Administration route: Oral
Indication: Parkinson's Disease
Start date: 1991-01-01
Symmetrel
Administration route: Oral
Indication: Parkinson's Disease
Start date: 1991-01-01
Paxil
Administration route: Oral
Indication: Parkinson's Disease
Start date: 2004-06-08
Other drugs received by patient: Meilax; Mucosta
Adverse event in male receiving Symmetrel (Amantadine)
Reported by a physician from Japan on 2007-01-30
Patient: male, weighing 66.3 kg (145.9 pounds)
Adverse reactions / side effects: Pneumonia, Rhabdomyolysis, Cerebral Infarction
Adverse event resulted in: life threatening event, hospitalization, disablity
Suspect drug(s):
BI-Sifrol Tablets
Administration route: Oral
Indication: Parkinson's Disease
Start date: 2006-04-10
Artane
Administration route: Oral
Indication: Parkinson's Disease
Start date: 1991-01-01
Symmetrel
Administration route: Oral
Indication: Parkinson's Disease
Start date: 1991-01-01
Paxil
Administration route: Oral
Indication: Parkinson's Disease
Start date: 2004-06-08
Other drugs received by patient: Meilax; Mucosta
Adverse event in male receiving Symmetrel (Amantadine)
Reported by a physician from Japan on 2007-01-22
Patient: male, weighing 66.3 kg (145.9 pounds)
Adverse reactions / side effects: Pneumonia, Rhabdomyolysis, Cerebral Infarction
Adverse event resulted in: life threatening event, hospitalization, disablity
Suspect drug(s):
BI-Sifrol Tablets
Administration route: Oral
Indication: Parkinson's Disease
Start date: 2006-04-10
Artane
Administration route: Oral
Indication: Parkinson's Disease
Start date: 1991-01-01
Symmetrel
Administration route: Oral
Indication: Parkinson's Disease
Start date: 1991-01-01
Paxil
Administration route: Oral
Indication: Parkinson's Disease
Start date: 2004-06-08
Other drugs received by patient: Meilax; Mucosta
Adverse event in male receiving Symmetrel (Amantadine)
Reported by a physician from Japan on 2007-01-12
Patient: male, weighing 66.3 kg (145.9 pounds)
Adverse reactions / side effects: Pneumonia, Rhabdomyolysis, Cerebral Infarction
Adverse event resulted in: life threatening event, hospitalization, disablity
Suspect drug(s):
BI-Sifrol Tablets
Administration route: Oral
Indication: Parkinson's Disease
Start date: 2006-04-10
Artane
Administration route: Oral
Indication: Parkinson's Disease
Start date: 1991-01-01
Symmetrel
Administration route: Oral
Indication: Parkinson's Disease
Start date: 1991-01-01
Paxil
Administration route: Oral
Indication: Parkinson's Disease
Start date: 2004-06-08
Other drugs received by patient: Meilax; Mucosta
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