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FLEXERIL

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Flexeril Adverse Events Reported to the FDA Over Time

How are Flexeril adverse event reports trending over time?

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

Most Common Flexeril Adverse Events Reported to the FDA

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

Completed Suicide
717 (7.7%)
Cardiac Arrest
298 (3.2%)
Respiratory Arrest
277 (2.98%)
Cardio-respiratory Arrest
199 (2.14%)
Drug Toxicity
161 (1.73%)
Death
127 (1.36%)
Intentional Drug Misuse
115 (1.24%)
Overdose
115 (1.24%)
Multiple Drug Overdose
114 (1.22%)
Somnolence
105 (1.13%)
Confusional State
101 (1.09%)
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Drug Abuse
93 (1%)
Drug Interaction
87 (.93%)
Multiple Drug Overdose Intentional
87 (.93%)
Convulsion
84 (.9%)
Vomiting
78 (.84%)
Poisoning
74 (.8%)
Loss Of Consciousness
69 (.74%)
Tachycardia
69 (.74%)
Hypotension
68 (.73%)
Nausea
68 (.73%)
Hallucination
66 (.71%)
Dizziness
65 (.7%)
Depression
62 (.67%)
Drug Ineffective
62 (.67%)
Headache
60 (.64%)
Heart Rate Increased
60 (.64%)
Pain
57 (.61%)
Suicide Attempt
57 (.61%)
Feeling Abnormal
54 (.58%)
Coma
52 (.56%)
Fall
48 (.52%)
Lethargy
47 (.5%)
Unresponsive To Stimuli
44 (.47%)
Fatigue
43 (.46%)
Memory Impairment
43 (.46%)
Muscle Spasms
43 (.46%)
Anxiety
42 (.45%)
Mental Status Changes
42 (.45%)
Tremor
41 (.44%)
Dyspnoea
40 (.43%)
Intentional Overdose
38 (.41%)
Depressed Level Of Consciousness
37 (.4%)
Drug Exposure During Pregnancy
37 (.4%)
Delirium
36 (.39%)
Insomnia
36 (.39%)
Amnesia
35 (.38%)
Agitation
33 (.35%)
Aspartate Aminotransferase Increase...
31 (.33%)
Asthenia
31 (.33%)
Blood Pressure Increased
31 (.33%)
Dysarthria
31 (.33%)
Hypertension
31 (.33%)
Suicidal Ideation
31 (.33%)
Drug Screen Positive
30 (.32%)
Paranoia
30 (.32%)
Malaise
29 (.31%)
Metabolic Acidosis
29 (.31%)
Disorientation
27 (.29%)
Dry Mouth
27 (.29%)
Alanine Aminotransferase Increased
26 (.28%)
Sedation
26 (.28%)
Weight Increased
26 (.28%)
Aggression
25 (.27%)
Aspiration
25 (.27%)
Back Pain
25 (.27%)
Chest Pain
25 (.27%)
Constipation
25 (.27%)
Dehydration
25 (.27%)
Hyperhidrosis
24 (.26%)
Hypoaesthesia
24 (.26%)
Pneumonia
24 (.26%)
Abnormal Behaviour
23 (.25%)
Blood Creatine Phosphokinase Increa...
23 (.25%)
Intervertebral Disc Protrusion
23 (.25%)
Serotonin Syndrome
23 (.25%)
Incorrect Dose Administered
22 (.24%)
Pulmonary Oedema
22 (.24%)
Sinus Tachycardia
22 (.24%)
Spina Bifida
22 (.24%)
Weight Decreased
22 (.24%)
Gait Disturbance
21 (.23%)
Pain In Extremity
20 (.21%)
Stress
20 (.21%)
Urinary Retention
20 (.21%)
Vision Blurred
20 (.21%)
Accidental Death
19 (.2%)
Nightmare
19 (.2%)
Rhabdomyolysis
19 (.2%)
Sleep Disorder
19 (.2%)
Arrhythmia
18 (.19%)
Renal Failure
18 (.19%)
Wrong Technique In Drug Usage Proce...
18 (.19%)
Chest Discomfort
17 (.18%)
Respiratory Depression
17 (.18%)
Body Temperature Increased
16 (.17%)
Deafness
16 (.17%)
Delusion
16 (.17%)
Drug Dose Omission
16 (.17%)
Electrocardiogram Qt Prolonged
16 (.17%)
Neck Pain
16 (.17%)

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This graph shows the top adverse events submitted to the FDA for Flexeril, 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 Flexeril 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 Flexeril

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

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This graph shows the top categories of adverse events submitted to the FDA for Flexeril, 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 Flexeril 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 Flexeril According to Those Reporting Adverse Events

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

Muscle Spasms
1053
Product Used For Unknown Indication
1048
Drug Use For Unknown Indication
940
Muscle Relaxant Therapy
503
Pain
497
Back Pain
437
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Fibromyalgia
208
Myalgia
137
Suicide Attempt
84
Rheumatoid Arthritis
82
Arthralgia
74
Neck Pain
67
Arthritis
52
Hypotonia
49
Muscle Tightness
42
Insomnia
42
Back Disorder
41
Muscle Disorder
37
Headache
30
Sleep Disorder
27
Pain In Extremity
26
Ill-defined Disorder
25
Muscle Strain
25
Osteoarthritis
25
Muscle Spasticity
23
Multiple Sclerosis
23
Back Injury
22
Restless Legs Syndrome
21
Migraine
19
Ankylosing Spondylitis
17
Musculoskeletal Pain
16
Intervertebral Disc Protrusion
16
Completed Suicide
14
Intervertebral Disc Degeneration
14
Musculoskeletal Stiffness
13
Abdominal Pain Upper
12
Temporomandibular Joint Syndrome
12
Foetal Exposure During Pregnancy
12
Analgesic Therapy
11
Depression
11
Scoliosis
10
Chest Pain
10
Tremor
10
Nerve Compression
9
Drug Exposure During Pregnancy
9
Pain Management
9
Inflammation
8
Intentional Drug Misuse
8
Neuropathy Peripheral
8
Analgesic Effect
8
Sciatica
8

Flexeril Case Reports

What Flexeril 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 Flexeril. 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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