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MEMANTINE

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Memantine Adverse Events Reported to the FDA Over Time

How are Memantine adverse event reports trending over time?

This graph shows volume of adverse events submitted to the FDA by quarter for Memantine, as well as related generic and/or brandname drugs containing the same primary active ingredients. Adverse events are counted if Memantine is flagged as the suspect drug causing the adverse event.

Most Common Memantine Adverse Events Reported to the FDA

What are the most common Memantine adverse events reported to the FDA?

Confusional State
1256 (3.93%)
Dizziness
978 (3.06%)
Somnolence
786 (2.46%)
Fall
605 (1.89%)
Agitation
518 (1.62%)
Fatigue
384 (1.2%)
Asthenia
375 (1.17%)
Constipation
366 (1.14%)
Aggression
354 (1.11%)
Headache
299 (.94%)
Convulsion
294 (.92%)
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Condition Aggravated
287 (.9%)
Hallucination
279 (.87%)
Urinary Tract Infection
271 (.85%)
Tremor
254 (.79%)
Abnormal Behaviour
252 (.79%)
Gait Disturbance
249 (.78%)
Insomnia
236 (.74%)
Nausea
236 (.74%)
Diarrhoea
225 (.7%)
Decreased Appetite
218 (.68%)
Dehydration
211 (.66%)
Hypersomnia
211 (.66%)
Blood Glucose Increased
205 (.64%)
Drug Interaction
202 (.63%)
Lethargy
196 (.61%)
Loss Of Consciousness
184 (.58%)
Blood Pressure Increased
171 (.53%)
Vomiting
170 (.53%)
Disorientation
161 (.5%)
Oedema Peripheral
160 (.5%)
Malaise
155 (.48%)
Rash
153 (.48%)
Urinary Incontinence
153 (.48%)
Dyspnoea
152 (.48%)
Weight Decreased
152 (.48%)
Pneumonia
151 (.47%)
Syncope
151 (.47%)
Hypotension
150 (.47%)
Feeling Abnormal
149 (.47%)
Anxiety
147 (.46%)
Aspartate Aminotransferase Increase...
145 (.45%)
General Physical Health Deteriorati...
143 (.45%)
Pyrexia
141 (.44%)
Hallucination, Visual
140 (.44%)
Alanine Aminotransferase Increased
137 (.43%)
Haemoglobin Decreased
135 (.42%)
Drug Ineffective
131 (.41%)
Anorexia
126 (.39%)
Balance Disorder
126 (.39%)
Depression
125 (.39%)
Depressed Level Of Consciousness
123 (.38%)
Hypertension
119 (.37%)
Speech Disorder
119 (.37%)
Restlessness
118 (.37%)
Renal Failure
115 (.36%)
Myocardial Infarction
107 (.33%)
Delirium
106 (.33%)
Renal Failure Acute
105 (.33%)
Dyskinesia
104 (.33%)
Blood Urea Increased
102 (.32%)
Dementia
102 (.32%)
Amnesia
99 (.31%)
Blood Creatinine Increased
96 (.3%)
Death
96 (.3%)
Pancreatitis Acute
94 (.29%)
Cardiac Failure Congestive
92 (.29%)
Pulmonary Embolism
91 (.28%)
Blood Alkaline Phosphatase Increase...
90 (.28%)
Anaemia
86 (.27%)
Cerebrovascular Accident
86 (.27%)
Cholelithiasis
86 (.27%)
Contusion
86 (.27%)
Epilepsy
86 (.27%)
Grand Mal Convulsion
86 (.27%)
International Normalised Ratio Incr...
86 (.27%)
Abasia
83 (.26%)
Chest Pain
82 (.26%)
Coma
80 (.25%)
Blood Creatine Phosphokinase Increa...
79 (.25%)
Atrial Fibrillation
78 (.24%)
Memory Impairment
78 (.24%)
Blood Potassium Decreased
77 (.24%)
Cerebral Atrophy
76 (.24%)
Mental Status Changes
76 (.24%)
Platelet Count Decreased
73 (.23%)
Sedation
73 (.23%)
Aphasia
72 (.23%)
Bradycardia
72 (.23%)
Crying
72 (.23%)
White Blood Cell Count Increased
71 (.22%)
Pancreatitis
69 (.22%)
Hyperhidrosis
68 (.21%)
Medication Error
67 (.21%)
Musculoskeletal Stiffness
67 (.21%)
Heart Rate Increased
66 (.21%)
Haematocrit Decreased
65 (.2%)
Accidental Overdose
64 (.2%)
Altered State Of Consciousness
64 (.2%)
Paranoia
64 (.2%)
Vision Blurred
64 (.2%)

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This graph shows the top adverse events submitted to the FDA for Memantine, as well as related generic and/or brandname drugs containing the same primary active ingredients, from Q1 2004 to Q3 2012. Adverse events are counted if Memantine is flagged as a suspect drug causing the adverse event. For each adverse event listed, percent (%) represents percentage of the adverse event to all adverse events reported for the drug. Percent does not represent a rate related to drug utilization.

Adverse Event Categories for Memantine

What are the most common Memantine adverse events reported to the FDA?

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This graph shows the top categories of adverse events submitted to the FDA for Memantine, as well as related generic and/or brandname drugs containing the same primary active ingredients, from Q1 2004 to Q3 2012. Adverse events are counted if Memantine is flagged as a suspect drug causing the adverse event. For each adverse event listed, percent (%) represents percentage of the adverse event to all adverse events reported for the drug. Percent does not represent a rate related to drug utilization.

Common Uses of Memantine According to Those Reporting Adverse Events

Why are people taking Memantine, according to those reporting adverse events to the FDA?

Dementia Alzheimers Type
4126
Dementia
1258
Amnesia
252
Memory Impairment
205
Product Used For Unknown Indication
114
Drug Use For Unknown Indication
109
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Cognitive Disorder
78
Vascular Dementia
62
Parkinsons Disease
45
Senile Dementia
30
Abnormal Behaviour
30
Confusional State
30
Dementia With Lewy Bodies
23
Migraine
18
Pain
17
Nervous System Disorder
16
Depression
14
Fibromyalgia
13
Ill-defined Disorder
12
Open Angle Glaucoma
12
Prophylaxis
11
Bipolar Disorder
10
Neuralgia
9
Psychotic Disorder
9
Post Herpetic Neuralgia
8
Parkinsonism
8
Aphasia
8
Behavioural And Psychiatric Symptom...
8
Mental Impairment
8
Agitation
8
Cerebrovascular Accident
7
Multiple Sclerosis
7
Complex Regional Pain Syndrome
6
Delusion
6
Glaucoma
6
Presenile Dementia
6
Head Injury
6
Neuropathy Peripheral
5
Trigeminal Neuralgia
5
Frontotemporal Dementia
5
Autism
5
Schizophrenia
5
Apathy
5
Intentional Overdose
4
Cognitive Deterioration
4
Migraine Prophylaxis
4
Aggression
4
Hypokinesia
3
Mental Disorder Due To A General Me...
3
Nystagmus
3
Mood Swings
3

Drug Labels

LabelLabelerEffective
NamendaPD-Rx Pharmaceuticals, Inc.27-JUL-11
NamendaForest Laboratories, Inc.27-JUL-11
NamendaLake Erie Medical & Surgical Supply DBA Quality Care Products LLC03-APR-12
NamendaCardinal Health16-MAY-12
NamendaBryant Ranch Prepack17-JAN-13
Namendaxr Forest Laboratories, Inc.17-APR-13
NamendaxrForest Laboratories, Inc.17-APR-13

Memantine Case Reports

What Memantine safety concerns are being reported by doctors and researchers in the medical literature?

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About Results

This report contains aggregated drug side effects and adverse events for Memantine. The data has been pulled from the United States Food and Drug Administration's (US FDA) Adverse Event Reporting System (AERS), a database containing more than 4,000,000 adverse event reports.

DrugCite expands your query using the Unified Medical Language System (UMLS) to include generic drugs and primary active ingredients. While the core of DrugCite's advanced drug filtering algorithm is based on the industry standard UMLS, DrugCite's proprietary filtering system also includes dozens of additional steps to reconcile malformed drug names in the FDA's data.

DrugCite only counts a drug if the submitter of the adverse event indicates that the drug is suspected to have caused the adverse event.

Depending on how the data is aggregated, different counts may occur. When someone submits an adverse event to the FDA, the submitter can attribute multiple adverse events to one or more drugs. For example, an individual taking Paxil could submit the adverse events "anxiety" and "suicidal ideation" for the same individual safety report (ISR). This means when DrugCite aggregates by adverse event, two distinct adverse events are counted in the adverse event graph; once for "anxiety" and again for "suicidal ideation". However, when DrugCite aggregates by individual safety reports irrespective of the details of the adverse events contained within the safety report, the report is only counted once.

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