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Flexeril Headache Side Effects

Flexeril Headache Side Effect Reports


The following Flexeril Headache side effect reports were submitted by healthcare professionals and consumers.

This information will help you understand how side effects, such as Headache, can occur, and what you can do about them.

A side effect could appear soon after you start Flexeril or it might take time to develop.



Vertigo, Headache

This Headache side effect was reported by a consumer or non-health professional from US. A 72-year-old female patient (weight:NA) experienced the following symptoms/conditions: muscle spasms. The patient was prescribed Flexeril (dosage: 1 Pill Three Times Daily Taken By Mouth?), which was started on NS. Concurrently used drugs:
  • Avapro
  • Avalide
  • Acidophilus
  • Maalox
  • Ibuprofen
  • Ranitidine
When starting to take Flexeril the consumer reported the following symptoms:
  • Vertigo
  • Headache
These side effects may potentially be related to Flexeril.
Dyspepsia, Chromaturia, Nausea, Headache

This Headache Flexeril side effect was reported by a physician from UNITED STATES on Mar 14, 2012. A male , 58 years of age, was diagnosed with and was treated with Flexeril. The patient presented the following health conditions:
  • Dyspepsia
  • Chromaturia
  • Nausea
  • Headache
. Flexeril dosage: NA. Additional drugs used at the same time:
  • Peg-intron
  • Lisinopril And Hydrochlorothiazide
  • Copegus
  • Incivek
  • Naproxen
Cervicobrachial Syndrome, Nausea, Blood Pressure Increased, Oedema Peripheral, Pruritus, Diarrhoea, Headache, Skin Discolouration, Pleurisy

This is a Flexeril side effect report of a 44-year-old female patient (weight:NA) from UNITED STATES, suffering from the following symptoms/conditions: NA, who was treated with Flexeril (dosage:NA, start time: Sep 19, 2011), combined with:
  • Phenobarbital Tab
  • Neurontin
  • Calcitrol (calcitrol) (ergocalciferol, Retinol, Calcium Carbonate)
  • Calcium Sulfate (calcium)
  • Norvasc
  • Hydrochlorothiazide
  • Benlysta (10mg/kg, 1 In 28 D, Intravenous Drip)
  • Hydroxychloroquine Sulfate
, and developed a serious reaction and a Headache side effect. The patient presented with:
  • Cervicobrachial Syndrome
  • Nausea
  • Blood Pressure Increased
  • Oedema Peripheral
  • Pruritus
  • Diarrhoea
  • Headache
  • Skin Discolouration
  • Pleurisy
which developed after the beginning of treatment. The patient was hospitalized. This side effect report can indicate a possible existence of increased vulnerability to Flexeril treatment in female patients suffering from NA, resulting in Headache.

Sputum Discoloured, Cough, Nausea, Fatigue, Sinus Congestion, Psoriasis, Oropharyngeal Pain, Headache

A 29-year-old patient (weight: NA) from UNITED STATES with the following symptoms: NA started Flexeril treatment (dosage: NA) on Aug 19, 2011. Soon after starting Flexeril treatment, the consumer experienced several side effects, including:
  • Sputum Discoloured
  • Cough
  • Nausea
  • Fatigue
  • Sinus Congestion
  • Psoriasis
  • Oropharyngeal Pain
  • Headache
. Concurrently used drugs:
  • Norco (325/10 Mg, As Required)
  • Chantix
  • Neurontin
  • Depakote
This finding indicates that some patients can be more vulnerable to developing Flexeril side effects, such as Headache.
Injection Site Warmth, Injection Site Pruritus, Headache, Injection Site Pain, Injection Site Erythema

A female patient from UNITED STATES was prescribed and started Flexeril on Apr 19, 2011. Patient felt the following Flexeril side effects: injection site warmth, injection site pruritus, headache, injection site pain, injection site erythema Additional patient health information: Female , weighting 150.1 lb, The consumer reported the following symptoms: . Flexeril dosage: NA. Concurrently used drugs:
  • Levothyroxine Sodium
  • Propranolol
  • Wellbutrin
  • Imitrex
  • Estradiol
Cerebrovascular Accident, Asthenia, Headache, Tremor, Fatigue, Speech Disorder, Convulsion

This report suggests a potential Flexeril Headache side effect(s) that can have serious consequences. A female patient from UNITED STATES (weight:NA) was diagnosed with the following health condition(s): NA and used Flexeril (dosage: NA) starting Jul 25, 2011. Soon after starting Flexeril the patient began experiencing various side effects, including:
  • Cerebrovascular Accident
  • Asthenia
  • Headache
  • Tremor
  • Fatigue
  • Speech Disorder
  • Convulsion
Drugs used concurrently:
  • Ascorbic Acid
  • Demadex
  • Centrum Silver
  • Calcium
  • Iron
  • Demerol
  • Lopressor
  • Vitamin E /001105/
Although Flexeril demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Headache, may still occur.
White Blood Cell Count Increased, Headache, Red Blood Cell Count Increased, Abdominal Discomfort

An adverse event was reported by a consumer or non-health professional on Oct 27, 2011 by a male taking Flexeril (dosage: NA) was diagnosed with and. Location: UNITED STATES , weighting 175.9 lb, patient began experiencing various side effects, including: Directly after treatment started, patient experienced the unwanted or unexpected Flexeril side effects: white blood cell count increased, headache, red blood cell count increased, abdominal discomfort. Additional medications/treatments:
Associated medications used:
  • Ibuprofen (advil) (200 Mg, Unk)
Dizziness, Headache

This Headache problem was reported by a consumer or non-health professional from UNITED STATES. A female patient (weight: NA) was diagnosed with the following medical condition(s): NA.On Nov 05, 2010 a consumer started treatment with Flexeril (dosage: 10 Mg, Qhs). The following drugs/medications were being taken at the same time:
  • Acetaminophen And Hydrocodone Bitartrate (One Qhs Prn)
When commencing Flexeril, the patient experienced the following unwanted symptoms /side effects:
  • Dizziness
  • Headache
Although all drugs are carefully tested before they are licensed for use, they carry potential side effect risks. Some side effects, such as Headache, may become evident only after a product is in use by the general population.
Headache, Cerebrovascular Accident, Nausea, Amnesia

This is a Flexeril side effect report of a female patient (weight: NA) from UNITED STATES. The patient developed the following symptoms/conditions: headache,contraception and was treated with Flexeril (dosage: Unk) starting Nov 15, 2003. Concurrently used drugs:
  • Yaz (Unk)
  • Yasmin (Unk)
Soon after that, the consumer experienced the following of symptoms:
  • Headache
  • Cerebrovascular Accident
  • Nausea
  • Amnesia
This opens a possibility that Flexeril could cause Headache and that some female patients may be more susceptible.
Alopecia, Back Disorder, Depression, Diabetes Mellitus, Feeling Abnormal, Gastric Disorder, Headache, Heart Rate Increased

This Headache side effect was reported by a consumer or non-health professional from UNITED STATES on Aug 07, 2008. A patient from UNITED STATES , weighting 180.0 lb, was diagnosed with and was treated with Flexeril. Directly after treatment started, patient experienced the unwanted or unexpected Flexeril side effects: alopecia, back disorder, depression, diabetes mellitus, feeling abnormal, gastric disorder, headache, heart rate increased. Flexeril dosage: NA.
Associated medications used:
  • Cymbalta
  • Cymbalta
The patient was hospitalized. These side effects may potentially be related to Flexeril.
Alopecia, Back Disorder, Depression, Diabetes Mellitus, Feeling Abnormal, Gastric Disorder, Headache, Heart Rate Increased, Hyperadrenalism

This Headache side effect was reported by a consumer or non-health professional from UNITED STATES. A patient (weight:NA) experienced the following symptoms/conditions: back disorder. The patient was prescribed Flexeril (dosage: NA), which was started on NS. Concurrently used drugs:
  • Cymbalta
  • Cymbalta
When starting to take Flexeril the consumer reported the following symptoms:
  • Alopecia
  • Back Disorder
  • Depression
  • Diabetes Mellitus
  • Feeling Abnormal
  • Gastric Disorder
  • Headache
  • Heart Rate Increased
  • Hyperadrenalism
The patient was hospitalized. These side effects may potentially be related to Flexeril.
Dizziness, Headache

This Headache Flexeril side effect was reported by a pharmacist from UNITED STATES on Mar 23, 2005. A Female , weighting 168.0 lb, was treated with Flexeril. The patient presented the following health conditions:
  • Dizziness
  • Headache
. Flexeril dosage: Oral. Additional drugs used at the same time:
  • Naprosyn
The patient was hospitalized.
Arrhythmia, Asthenia, Convulsion, Dizziness, Headache, Nervous System Disorder, Paraesthesia, Tachycardia

This is a Flexeril side effect report of a female patient (weight:NA) from , suffering from the following symptoms/conditions: NA, who was treated with Flexeril (dosage:NA, start time: NS), combined with:
  • Ultram
  • Nyquil
  • Nyquil
  • Nyquil
  • Nyquil
  • Nyquil
, and developed a serious reaction and a Headache side effect. The patient presented with:
  • Arrhythmia
  • Asthenia
  • Convulsion
  • Dizziness
  • Headache
  • Nervous System Disorder
  • Paraesthesia
  • Tachycardia
which developed after the beginning of treatment. This side effect report can indicate a possible existence of increased vulnerability to Flexeril treatment in female patients suffering from NA, resulting in Headache.
Nasopharyngitis, Headache, Confusional State, Dizziness, Palpitations, Nervousness, Paraesthesia, Abnormal Sensation In Eye, Hyperhidrosis

A 40-year-old female patient (weight: NA) from US with the following symptoms: muscle spasms started Flexeril treatment (dosage: NA) on Mar 15, 2014. Soon after starting Flexeril treatment, the consumer experienced several side effects, including:
  • Nasopharyngitis
  • Headache
  • Confusional State
  • Dizziness
  • Palpitations
  • Nervousness
  • Paraesthesia
  • Abnormal Sensation In Eye
  • Hyperhidrosis
. Concurrently used drugs: NA. This finding indicates that some patients can be more vulnerable to developing Flexeril side effects, such as Headache.

DISCLAIMER: ALL DATA PROVIDED AS-IS, refer to terms of use for additional information.

Flexeril Headache Causes and Reviews


Almost everyone has had a Headache. Headache is the most common form of pain. It's a major reason people miss days at work or school or visit the doctor.

The most common type of Headache is a tension Headache. Tension Headaches are due to tight muscles in your shoulders, neck, scalp and jaw. They are often related to stress, depression or anxiety. You are more likely to get tension Headaches if you work too much, don't get enough sleep, miss meals, or use alcohol.

Other common types of Headaches include migraines, cluster Headaches, and sinus Headaches. Most people can feel much better by making lifestyle changes, learning ways to relax and taking pain relievers.

Not all Headaches require a doctor's attention. But sometimes Headaches warn of a more serious disorder. Let your health care provider know if you have sudden, severe Headaches. Get medical help right away if you have a Headache after a blow to your head, or if you have a Headache along with a stiff neck, fever, confusion, loss of consciousness, or pain in the eye or ear.

NIH: National Institute of Neurological Disorders and Stroke


Flexeril Headache Reviews

Sat, 09 Jan 2010
My mother, 87, was given Flexeril for a tight shoulder muscle. After 7 pills is having hallucinations. Mentally sharp otherwise. Last pill was on 12/29/2009. How long can we expect these? She is an invalid.
Wed, 31 Mar 2010
anxiety, anger, and exhaustion
Mon, 18 Apr 2011
I was taking Flexeril after I was diagnosed with a rib contusion following heavy lifting. I am taking Lexapro, Adderall and Trazadone already for A.D.D. depression and sleep deprivation. The Flexeril made me extremely tired, irritable, so much so that after a 24 hour period, I was nearly suicidal, possibly homicidal. I threw the medication away after reoccuring this feeling several times.
DISCLAIMER: ALL DATA PROVIDED AS-IS, refer to terms of use for additional information.

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Top Flexeril Side Effects

Pain (102)
Pulmonary Embolism (74)
Fatigue (71)
Nausea (70)
Fall (68)
Pain In Extremity (66)
Dyspnoea (66)
Oedema Peripheral (65)
Feeling Abnormal (65)
Depression (65)
Somnolence (64)
Headache (64)
Muscle Spasms (64)
Overdose (63)
Dizziness (61)
Deep Vein Thrombosis (54)
Anxiety (50)
Convulsion (48)
Confusional State (46)
Asthenia (44)
Back Pain (13)
Loss Of Consciousness (11)
Hypertension (11)
Heart Rate Increased (11)
Abdominal Pain Upper (10)
Amnesia (10)
Malaise (10)
Injury (10)
Blood Pressure Increased (10)
Cerebrovascular Accident (9)
Cardiac Failure (9)
Death (9)
Injection Site Pain (9)
Weight Increased (9)
Pneumonia (9)
Lethargy (9)
Diarrhoea (8)
Completed Suicide (8)
Muscular Weakness (8)
Urinary Tract Infection (8)
Vision Blurred (8)
Vomiting (8)
Incorrect Dose Administered (7)
Hallucination (7)
Liver Disorder (7)
Hypotension (7)
Paraesthesia (7)
Suicidal Ideation (7)
Rhabdomyolysis (7)
Myocardial Infarction (7)

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