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Flexeril (Cyclobenzaprine) - Drug Ineffective - Suspected Cause - Side Effect Reports

 
 



Index of reports > Cases with Drug Ineffective (11)

Below is the selection of side effect reports (a.k.a. adverse event reports) related to Flexeril (Cyclobenzaprine) where reactions include drug ineffective. The selected reports were submitted to the FDA during the sample period of about a year.

Possible Flexeril side effects in 43 year old male

Reported by a consumer/non-health professional from United States on 2012-08-15

Patient: 43 year old male, weighing 99.3 kg (218.5 pounds)

Reactions: Headache, Hyperhidrosis, Loss of Consciousness, Tunnel Vision, Thinking Abnormal, Hot Flush, Neoplasm Skin, Feeling Hot, Muscle Spasms, Pain in Extremity, Laceration, Dysphemia, Convulsion, Paraesthesia, Irritability, Vision Blurred, Mobility Decreased, Confusional State, Drug Ineffective, Pain, Fall, Somnolence, Impaired Driving Ability, Overdose, Neuropathy Peripheral, Chest Pain, Dizziness, Anger, Musculoskeletal Stiffness, Depression, Hypermetropia, Self-Injurious Ideation, Musculoskeletal Pain, Cardiac Operation, Eye Pain, Dysarthria, Anxiety, Dysgeusia, Burning Sensation, Panic Attack, Memory Impairment, Withdrawal Syndrome, Bradyphrenia, Feeling Abnormal, Asthenia, Hypertension

Adverse event resulted in: hospitalization

Drug(s) suspected as cause:
Flexeril
    Start date: 2008-01-01
    End date: 2008-01-01

Amitriptyline HCL
    Administration route: Oral
    Indication: Neuropathy Peripheral
    Start date: 2008-08-01

Neurontin
    Dosage: 2400 mg, 2x/day
    Start date: 2000-01-01

Neurontin
    Dosage: 1800 mg, 2x/day
    Administration route: Oral
    Indication: Neuropathy Peripheral

Other drugs received by patient: Aspirin; Metoclopramide; Metoprolol



Possible Flexeril side effects in female

Reported by a consumer/non-health professional from United States on 2012-07-10

Patient: female, weighing 110.0 kg (242.0 pounds)

Reactions: Pain in Extremity, Drug Ineffective, Oedema Peripheral, Hypoaesthesia, Hangover, Emotional Disorder, Rash

Drug(s) suspected as cause:
Gabapentin
    Indication: Back Pain

Cyclobenzaprine
    Dosage: 10 mg, daily
    Indication: Pain in Extremity

Flexeril
    Dosage: unk
    Indication: Pain in Extremity

Flexeril
    Indication: Back Pain

Gabapentin
    Dosage: 300 mg, 3x/day
    Indication: Pain in Extremity
    Start date: 2008-01-01

Cyclobenzaprine
    Indication: Back Pain



Possible Flexeril side effects in female

Reported by a consumer/non-health professional from United States on 2012-06-06

Patient: female, weighing 59.0 kg (129.7 pounds)

Reactions: Drug Administered AT Inappropriate Site, Inappropriate Schedule of Drug Administration, Drug Ineffective, Swelling, Somnolence, Muscle Spasms

Drug(s) suspected as cause:
Fentanyl-100
    Indication: Back Pain
    Start date: 2007-01-01
    End date: 2009-01-01

Flexeril
    Administration route: Oral
    Indication: Muscle Spasms
    Start date: 2004-01-01
    End date: 2011-10-01

Fentanyl-100
    Start date: 2009-01-01
    End date: 2012-01-01

Paxil
    Administration route: Oral
    Indication: Depression
    Start date: 1993-01-01
    End date: 2012-02-01

Fentanyl-100
    Start date: 2012-01-01

Cymbalta
    Administration route: Oral
    Indication: Depression
    Start date: 2012-02-01
    End date: 2012-03-01

Fentanyl-100
    Indication: Neuropathy Peripheral
    Start date: 2007-01-01
    End date: 2009-01-01

Fentanyl-100
    Start date: 2009-01-01
    End date: 2012-01-01

Fentanyl-100
    Start date: 2012-01-01

Other drugs received by patient: Nasonex; Klonopin; Lortab; Synthroid; Neurontin; Maxalt; Albuterol



Possible Flexeril side effects in 57 year old female

Reported by a consumer/non-health professional from United States on 2012-05-22

Patient: 57 year old female, weighing 59.0 kg (129.7 pounds)

Reactions: Drug Ineffective

Drug(s) suspected as cause:
Flexeril
    Dosage: 10 mg, as needed
    Indication: Muscle Spasms

Aspirin
    Dosage: 300 mg, daily
    Indication: Pain in Extremity

Motrin
    Dosage: 200 mg, unk

Motrin
    Dosage: 400 mg, as needed
    Indication: Inflammation

Other drugs received by patient: Venlafaxine Hydrochloride; Elavil; Xanax



Possible Flexeril side effects in female

Reported by a consumer/non-health professional from United States on 2012-03-28

Patient: female

Reactions: Drug Ineffective

Drug(s) suspected as cause:
Skelaxin
    Dosage: unk

Flexeril
    Dosage: unk



Possible Flexeril side effects in female

Reported by a consumer/non-health professional from United States on 2012-03-23

Patient: female, weighing 41.3 kg (90.8 pounds)

Reactions: Product Quality Issue, Inappropriate Schedule of Drug Administration, Wrong Technique in Drug Usage Process, Cataract, Drug Ineffective, Pain, Headache, Amnesia, Poor Quality Drug Administered, Osteonecrosis, Visual Impairment, Feeling Abnormal

Adverse event resulted in: hospitalization

Drug(s) suspected as cause:
Flexeril
    Administration route: Oral
    Indication: Muscle Tightness
    End date: 2011-01-01

Duragesic-100
    Indication: Intervertebral Disc Degeneration
    Start date: 2010-01-01

Flexeril
    Administration route: Oral
    Indication: Muscle Spasms
    End date: 2011-01-01

Duragesic-100
    Indication: Spinal Fusion Surgery
    Start date: 2010-01-01

Oxycontin
    Dosage: 100+25 mcg
    Indication: Product Used FOR Unknown Indication
    End date: 2010-01-01

Duragesic-100
    Indication: Arthritis
    Start date: 2010-01-01

Other drugs received by patient: Spiriva; Lortab; Albuterol; Spiriva; Albuterol; Proair HFA; Crestor; Cymbalta; Premarin; Duragesic Reservoir; Omeprazole; Duragesic Reservoir; Promethazine; Proair HFA



Possible Flexeril side effects in female

Reported by a consumer/non-health professional from United States on 2012-03-22

Patient: female, weighing 68.0 kg (149.7 pounds)

Reactions: Back Pain, Activities of Daily Living Impaired, Drug Ineffective, Neck Pain, Nervous System Disorder, Feeling Abnormal

Drug(s) suspected as cause:
Lyrica
    Indication: Arthralgia

Lortab
    Dosage: unk
    Indication: Muscle Spasms

Flexeril
    Dosage: 5 mg, unk
    Indication: Muscle Spasms

Lyrica
    Dosage: 50 mg, unk
    Indication: Neck Pain

Lyrica
    Indication: Back Pain

Nyquil
    Dosage: unk

Other drugs received by patient: Advair Diskus 100 / 50; Albuterol Sulfate



Possible Flexeril side effects in female

Reported by a consumer/non-health professional from United States on 2012-03-05

Patient: female, weighing 56.2 kg (123.7 pounds)

Reactions: Nausea, Drug Ineffective, Paranoia, Appetite Disorder, Thinking Abnormal, Panic Attack, Malaise, Palpitations, Insomnia, Drug Administration Error, Nervousness, Gastroenteritis Viral, Hypersomnia

Drug(s) suspected as cause:
Gabapentin
    Dosage: 300 mg, 3x/day
    Indication: Fibromyalgia
    Start date: 2012-01-01

Flexeril
    Dosage: 10 mg, daily
    Administration route: Oral
    Indication: Muscle Relaxant Therapy
    Start date: 2011-12-01

Gabapentin
    Dosage: 300 mg, daily
    End date: 2012-02-28

Flexeril
    Indication: Sleep Disorder

Amitriptyline HCL
    Dosage: 10 mg, 1x/day
    Indication: Fibromyalgia
    Start date: 2012-02-20

Lyrica
    Dosage: 150 mg, 2x/day
    Administration route: Oral
    Indication: Fibromyalgia
    Start date: 2011-12-01
    End date: 2012-01-01

Amitriptyline HCL
    Dosage: 40 mg, 1x/day
    End date: 2012-02-28

Other drugs received by patient: Ativan



Possible Flexeril side effects in female

Reported by a consumer/non-health professional from United States on 2012-03-05

Patient: female, weighing 61.2 kg (134.7 pounds)

Reactions: Drug Ineffective, Pain

Drug(s) suspected as cause:
Lyrica
    Dosage: unk
    Indication: Neuropathy Peripheral
    Start date: 2008-01-01
    End date: 2012-02-01

Ibuprofen
    Dosage: 600 mg,every 6 hours
    Indication: Pain
    Start date: 2012-02-01

Flexeril
    Dosage: 5 mg, 2x/day
    Indication: Pain
    Start date: 2012-02-01



Possible Flexeril side effects in female

Reported by a consumer/non-health professional from United States on 2012-02-27

Patient: female, weighing 61.2 kg (134.7 pounds)

Reactions: Drug Ineffective, Pain

Drug(s) suspected as cause:
Lyrica
    Dosage: unk
    Indication: Neuropathy Peripheral
    Start date: 2008-01-01
    End date: 2012-02-01

Ibuprofen
    Dosage: 600 mg,every 6 hours
    Indication: Pain
    Start date: 2012-02-01

Flexeril
    Dosage: 5 mg, 2x/day
    Indication: Pain
    Start date: 2012-02-01



Possible Flexeril side effects in female

Reported by a consumer/non-health professional from United States on 2011-11-15

Patient: female, weighing 79.4 kg (174.6 pounds)

Reactions: Malaise, Palpitations, Diarrhoea, Drug Ineffective, Presyncope, Pain, Asthenia, Tremor

Drug(s) suspected as cause:
Flexeril

Baclofen

Celebrex
    Dosage: 200 mg, 3x/day
    Administration route: Oral
    Indication: Fibromyalgia
    Start date: 2011-09-16

Celebrex
    Indication: Back Pain

Other drugs received by patient: Ranitidine

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