Flexeril side effects by duration, gender and age - a phase IV clinical study of FDA data

Summary:

Side effects are reported by people who take Flexeril. Common side effects include drug ineffective among females and drug ineffective among males.

The phase IV clinical study is created by eHealthMe based on 32,511 reports from the FDA, and is updated regularly. You can use the study as a second opinion to make health care decisions.

With medical big data and AI algorithms, eHealthMe enables everyone to run phase IV clinical trial to detect adverse drug outcomes and monitor effectiveness. Our original studies have been referenced on 600+ peer-reviewed medical publications including The Lancet, Mayo Clinic Proceedings, and Nature. Most recently, phase IV clinial trails for COVID 19 vaccines have been added, check here.

On May, 10, 2022

32,511 people who take Flexeril and have side effects are studied.

What is Flexeril?

Flexeril has active ingredients of cyclobenzaprine hydrochloride. It is often used in muscle spasms. eHealthMe is studying from 35,843 Flexeril users for its effectiveness, alternative drugs and more.

Number of Flexeril reports submitted per year:

* Approximation only. Some reports may have incomplete information.

Do you take Flexeril?

Personalize this study to your gender and age

How to use the study?

You can discuss the study with your doctor, to ensure that all drug risks and benefits are fully discussed and understood.

How the study uses the data?

The study is based on cyclobenzaprine hydrochloride (the active ingredients of Flexeril) and Flexeril (the brand name). Other drugs that have the same active ingredients (e.g. generic drugs) are not considered.

Related studies

Alternative drugs to, pros and cons of Flexeril:

Flexeril (35,843 reports)

Common Flexeril side effects:

Abasia (inability to walk): 182 reports
Abdominal discomfort: 528 reports
Abdominal distension: 397 reports
Abdominal pain: 1,247 reports
Abdominal pain lower: 119 reports
Abdominal pain upper: 722 reports
Abnormal behavior: 144 reports
Abnormal dreams: 133 reports
Abscess (pus): 103 reports
Acne (skin problems that cause pimples): 105 reports
Activities of daily living impaired: 190 reports
Acute kidney failure: 783 reports
Acute myocardial infarction (acute heart attack): 172 reports
Adverse drug reaction: 151 reports
Adverse event: 175 reports
Aggression: 165 reports
Agitation (state of anxiety or nervous excitement): 390 reports
Agranulocytosis (a deficiency of granulocytes in the blood, causing increased vulnerability to infection): 224 reports
Alanine aminotransferase increased: 207 reports
Allergic rhinitis: 119 reports
Anaemia (lack of blood): 1,092 reports
Anaphylaxis (serious allergic reaction that is rapid in onset and may cause death): 186 reports
Anger: 157 reports
Anhedonia (inability to experience pleasure from activities usually found enjoyable): 474 reports
Ankle fracture: 143 reports
Anorexia (eating disorder characterized by immoderate food restriction and irrational fear of gaining weight): 116 reports
Aortic arteriosclerosis (hardening of the aortic arteries): 117 reports
Appetite - decreased (decreased appetite occurs when you have a reduced desire to eat): 624 reports
Appetite - increased (increased appetite is when you want to eat much more often or in larger quantities than your body requires): 114 reports
Arrhythmias (irregular heartbeat): 522 reports
Arthritis (form of joint disorder that involves inflammation of one or more joints): 573 reports
Arthropathy: 381 reports
Aseptic necrosis (the death of bone tissue due to a lack of blood supply): 289 reports
Aspartate aminotransferase increased: 209 reports
Asthma: 460 reports
Atelectasis (partial or complete collapse of the lung): 309 reports
Atherosclerosis (disorder of the arteries): 192 reports
Atrial fibrillation/flutter (atrial fibrillation and flutter are abnormal heart rhythms in which the atria, or upper chambers of the heart, are out of sync with the ventricles): 405 reports
Back disorder: 221 reports
Back injury: 156 reports
Back pain: 2,189 reports
Balance disorder: 379 reports
Bipolar disorder (mood disorder): 128 reports
Blindness: 116 reports
Blister (small pocket of fluid within the upper layers of the skin caused by forceful rubbing (friction), burning, freezing, chemical exposure): 200 reports
Blood alkaline phosphatase increased: 121 reports
Blood creatinine increased: 193 reports
Blood glucose decreased: 149 reports
Blood glucose increased: 494 reports
Blood potassium decreased: 166 reports
Bone density decreased: 158 reports
Bone disorder: 477 reports
Bone lesion (bone with abnormalities. bone lesions can result from growth formations, infections, or injuries): 185 reports
Bone pain: 493 reports
Bradycardia (abnormally slow heart action): 130 reports
Breast cancer: 121 reports
Breathing difficulty: 2,160 reports
Broken bone: 125 reports
Bronchitis (inflammation of the mucous membrane in the bronchial tubes): 846 reports
Burning sensation: 357 reports
Bursitis (inflammation of a bursa, typically one in the knee, elbow, or shoulder): 217 reports
Cardiac arrest: 249 reports
Cardiac disorder: 268 reports
Cardiac failure: 112 reports
Cardiac failure congestive: 605 reports
Cardiac murmur (an heart sound in valve abnormality): 168 reports
Cardiomyopathy (weakening of the heart muscle): 168 reports
Cardio-respiratory arrest (sudden dysfunction of heart and lungs): 102 reports
Carpal tunnel syndrome (nerve compression at wrist results numbness weakness, pain , swelling): 190 reports
Cataract (clouding of the lens inside the eye): 332 reports
Cellulitis (infection under the skin): 523 reports
Chest pain: 1,803 reports
Chills (felling of cold): 546 reports
Cholecystitis (infection of gallbladder): 116 reports
Cholecystitis chronic (long lasting infection of gallbladder): 140 reports
Chronic kidney disease: 662 reports
Chronic obstructive pulmonary disease (a progressive disease that makes it hard to breathe): 523 reports
Cognitive disorder (mental health disorders affects learning, memory, perception, and problem solving): 218 reports
Colitis (inflammation of colon): 141 reports
Completed suicide (act of taking one's own life): 106 reports
Compression fracture (fracture due to pressure caused by injury): 176 reports
Condition: 698 reports
Confusion: 216 reports
Confusional state: 709 reports
Consciousness - decreased: 202 reports
Constipation: 1,083 reports
Convulsion (muscles contract and relax rapidly and repeatedly, resulting in an uncontrolled shaking of the body): 381 reports
Coronary artery occlusion (complete obstruction of blood flow in a coronary artery): 124 reports
Coronary heart disease (narrowing or blockage of the coronary arteries): 399 reports
Cough: 1,007 reports
Coughing up blood: 143 reports
Crohn's disease (condition that causes inflammation of the gastrointestinal tract): 187 reports
Crying: 232 reports
Cuts and puncture wounds: 180 reports
Cyst (a closed sac): 130 reports
Death: 488 reports
Decreased interest: 171 reports
Deep venous thrombosis (blood clot in a major vein that usually develops in the legs and/or pelvis): 760 reports
Deformity (disfigurement): 239 reports
Dehydration (dryness resulting from the removal of water): 707 reports
Delirium (wild excitement): 103 reports
Dental caries: 371 reports
Depressed level of consciousness: 107 reports
Depressed mood: 175 reports
Depression: 2,268 reports
Dermatitis (inflammation of the skin resulting from direct irritation by an external agent or an allergic reaction to it): 115 reports
Diabetes: 488 reports
Diabetes mellitus inadequate control: 120 reports
Diabetic ketoacidosis (diabetic ketoacidosis (dka) is high concentrations of ketone bodies): 126 reports
Diabetic neuropathy (neuropathic disorders that are associated with diabetes mellitus): 110 reports
Diarrhea: 1,853 reports
Diplopia (double vision): 164 reports
Disability: 160 reports
Discomfort: 236 reports
Disease progression: 143 reports
Disturbance in attention: 299 reports
Diverticulitis (digestive disease which involves the formation of pouches (diverticula) within the bowel wall): 133 reports
Diverticulum (out pouching of a hollow (or a fluid-filled) structure in the body): 190 reports
Dizziness: 2,088 reports
Drowsiness: 889 reports
Drug abuse and dependence: 231 reports
Drug dependence: 480 reports
Drug effect decreased: 260 reports
Drug hypersensitivity: 1,007 reports
Drug ineffective: 2,196 reports
Drug intolerance (drug sensitivity): 207 reports
Drug withdrawal syndrome (interfere with normal social, occupational, or other functioning. are not due to another medical condition, drug use, or discontinuation): 537 reports
Dry eyes (lack of adequate tears): 203 reports
Dry mouth: 511 reports
Dry skin: 225 reports
Dyskinesia (abnormality or impairment of voluntary movement): 174 reports
Dyspnea exertional: 257 reports
Dysstasia (difficulty in standing): 134 reports
Ear pain: 271 reports
Eating disorder: 123 reports
Emotional disorder: 127 reports
Emotional distress: 841 reports
Emphysema (chronic respiratory disease - over inflation of the air sacs (alveoli) in the lungs): 132 reports
Encephalopathy (functioning of the brain is affected by some agent or condition): 113 reports
Enlarged heart: 215 reports
Erection problems: 186 reports
Exostosis (formation of new bone on the surface of a bone): 258 reports
Eye pain: 177 reports
Facial pain: 134 reports
Fainting (loss of consciousness and postural tone): 557 reports
Fall: 1,872 reports
Fatigue (feeling of tiredness): 2,957 reports
Fear: 175 reports
Febrile neutropenia (fever with reduced white blood cells): 121 reports
Feeling cold: 123 reports
Feeling hot: 195 reports
Feeling jittery: 118 reports
Femur fracture: 141 reports
Fever: 1,224 reports
Fibromyalgia (a long-term condition which causes pain all over the body): 522 reports
Fistula (an abnormal connection or passageway between two): 143 reports
Flank pain (a distressing sensation experienced around the lower back and the upper abdomen): 102 reports
Flatulence (flatus expelled through the anus): 161 reports
Fluid retention (an abnormal accumulation of fluid in the blood): 195 reports
Foot deformity (functional disability of foot): 102 reports
Foot fracture: 251 reports
Fungal infection: 129 reports
Gait disturbance: 1,016 reports
Gallbladder disorder: 206 reports
Gallstones (stone formation by bile component): 418 reports
Gastric disorder (disease of stomach): 144 reports
Gastric ulcer (stomach ulcer): 276 reports
Gastritis (inflammation of stomach): 274 reports
Gastroenteritis (inflammation of stomach and intestine): 125 reports
Gastroenteritis viral (inflammation of stomach and intestine caused by virus infection): 105 reports
Gastroesophageal reflux disease (a condition in which stomach contents leak backward from the stomach into the oesophagus): 937 reports
Gastrointestinal disorder (functional problems of gastrointestinal tract): 211 reports
Gastrointestinal haemorrhage (bleeding gastrointestinal tract): 364 reports
General physical health deterioration (weak health status): 380 reports
Gingival bleeding (bleeding gums): 128 reports
Gingival pain (gum pain): 101 reports
Gingivitis (inflammation of gums): 119 reports
Glaucoma (increased fluid pressure in the eye with vision loss): 107 reports
Haematemesis (vomiting of blood): 146 reports
Haematochezia (passage of stools containing blood): 260 reports
Haematocrit decreased: 157 reports
Haematoma (collection of blood outside the blood vessels): 129 reports
Haematuria (presence of blood in urine): 188 reports
Haemoglobin decreased: 363 reports
Haemorrhage (bleeding): 242 reports
Haemorrhoids (a swollen vein or group of veins in the region of the anus): 277 reports
Hair loss: 681 reports
Hallucinations (sensations that appear real but are created by your mind): 420 reports
Headache (pain in head): 2,577 reports
Head injury: 840 reports
Hearing loss: 134 reports
Heart attack: 705 reports
Heart palpitations (feelings or sensations that your heart is pounding or racing): 566 reports
Heart rate increased: 528 reports
Heart rate irregular: 213 reports
Hepatic enzyme increased: 180 reports
Hepatic steatosis (fatty liver disease): 179 reports
Hernia (hernia happens when part of an internal organ or tissue bulges through a weak area of muscle): 143 reports
Herpes zoster: 229 reports
Hiatal hernia (hernia resulting from the protrusion of part of the stomach through the diaphragm): 255 reports
High blood cholesterol: 602 reports
High blood pressure: 1,934 reports
Hip fracture: 147 reports
Hoarseness or changing voice: 273 reports
Hospitalisation: 109 reports
Hot flush (sudden feelings of heat): 318 reports
Hyperglycemia (high blood sugar): 206 reports
Hyperhidrosis (abnormally increased sweating): 699 reports
Hyperkalemia (damage to or disease of the kidney): 150 reports
Hyperlipidaemia (presence of excess lipids in the blood): 292 reports
Hypersensitivity: 492 reports
Hypoaesthesia (reduced sense of touch or sensation): 1,245 reports
Hypoglycemia (low blood sugar): 143 reports
Hypokalemia (low potassium): 278 reports
Hypokinesia (decreased bodily movement): 112 reports
Hyponatremia (abnormally low level of sodium in the blood; associated with dehydration): 170 reports
Hypophagia (reduced food intake): 209 reports
Hypotension (abnormally low blood pressure): 781 reports
Hypothyroidism (abnormally low activity of the thyroid gland, resulting in retardation of growth and mental development): 243 reports
Ill-defined disorder: 111 reports
Impaired gastric emptying: 125 reports
Impaired healing: 304 reports
Impaired work ability: 121 reports
Indigestion: 518 reports
Infection: 448 reports
Inflammation: 188 reports
Influenza like illness: 343 reports
Injection site bruising: 183 reports
Injection site erythema (redness at injection site): 241 reports
Injection site haemorrhage (bleeding from injection site): 153 reports
Injection site pain: 647 reports
Injection site pruritus (severe itching at injection site): 129 reports
Injection site reaction: 138 reports
Injection site swelling: 136 reports
Injury: 1,080 reports
Insomnia (sleeplessness): 1,649 reports
Intentional overdose: 128 reports
International normalised ratio increased: 135 reports
Interstitial lung disease: 133 reports
Intervertebral disc degeneration (spinal disc degeneration): 464 reports
Intervertebral disc disorder (spinal disc disorder): 178 reports
Intervertebral disc protrusion (spinal disc protrusion): 687 reports
Intestinal obstruction: 205 reports
Irritability: 293 reports
Irritable bowel syndrome: 189 reports
Itching: 800 reports
Jaw disorder (jaw disease): 104 reports
Joint dislocation (a joint position is changed from normal position): 113 reports
Joint injury: 192 reports
Joint pain: 2,106 reports
Joint range of motion decreased (disease of joint movement): 103 reports
Joint stiffness: 179 reports
Joint swelling: 550 reports
Kidney infection: 104 reports
Kidney stones: 275 reports
Kyphosis (a condition of over-curvature of the thoracic vertebrae (upper back)): 167 reports
Left ventricular hypertrophy (the thickening of the myocardium (muscle) of the left ventricle of the heart): 101 reports
Leukocytosis (increased white blood cells): 144 reports
Limb discomfort (discomfort in leg): 146 reports
Limb injury: 141 reports
Localised infection (infection at the single location): 130 reports
Local swelling (swelling at the site of some application of substance or injury): 157 reports
Loose tooth: 155 reports
Loss of consciousness: 628 reports
Low tissue oxygen: 170 reports
Lumbar spinal stenosis (a medical condition in which the spinal canal narrows and compresses the spinal cord and nerves at the level of the lumbar bone): 132 reports
Lung disorder (lung disease): 182 reports
Lung infiltration (a substance that normally includes fluid, inflammatory exudates or cells that fill a region of lung): 135 reports
Lung neoplasm (tumour of lung): 147 reports
Lymph follicular hypertrophy (an increase in the size of the lymph node follicles): 302 reports
Malaise (a feeling of general discomfort or uneasiness): 1,341 reports
Malignant neoplasm progression (cancer tumour came back): 120 reports
Malnutrition (condition that results from eating a diet in which certain nutrients are lacking): 108 reports
Mastication disorder (disease of chewing food): 102 reports
Memory loss: 1,116 reports
Mental disorder (a psychological term for a mental or behavioural pattern or anomaly that causes distress or disability): 267 reports
Mental impairment (a condition affecting the body, perhaps through sight or hearing loss, a mobility difficulty or a health condition): 127 reports
Mental status changes (general changes in brain function, such as confusion, amnesia (memory loss), loss of alertness, loss of orientation): 290 reports
Metastases to bone (cancer spreads to bone): 226 reports
Metastases to spine (cancer spreads to spine): 102 reports
Migraine (headache): 704 reports
Mitral valve incompetence (inefficient heart valve): 247 reports
Mobility decreased (ability to move is reduced): 220 reports
Mood swings (an extreme or rapid change in mood): 286 reports
Mouth ulcers: 205 reports
Movement disorder (neurological syndromes where they may be excess of movement or a paucity of movement that is not connected to weakness): 130 reports
Multiple myeloma (cancer of the plasma cells): 199 reports
Multiple sclerosis (a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 211 reports
Multiple sclerosis relapse (reoccurrence of a nervous system disease that affects your brain and spinal cord. it damages the myelin sheath): 237 reports
Muscle aches (muscle pain): 905 reports
Muscle spasms (muscle contraction): 1,350 reports
Muscle strain (an injury to a muscle in which the muscle fibres tear): 188 reports
Muscle tightness: 105 reports
Muscle twitching: 138 reports
Musculoskeletal chest pain (pain in chest muscle or nerve or bones): 189 reports
Musculoskeletal discomfort (discomfort in the body's muscles, joints, tendons, ligaments and nerves): 143 reports
Musculoskeletal pain (pain affects the bones, muscles, ligaments, tendons, and nerves): 596 reports
Musculoskeletal stiffness (stiffness of the body's muscles, joints, tendons, ligaments and nerves): 487 reports
Nasal congestion (blockage of the nasal passages usually due to membranes lining the nose becoming swollen from inflamed blood vessels): 224 reports
Nasopharyngitis (inflammation of the nasopharynx): 501 reports
Nausea (feeling of having an urge to vomit): 2,901 reports
Nausea and vomiting: 1,647 reports
Neck pain: 894 reports
Neoplasm malignant (cancer tumour): 169 reports
Nephrogenic anaemia (anaemia due to kidney disease): 145 reports
Nerve compression: 116 reports
Nervousness: 299 reports
Nervous system disorder (a general class of medical conditions affecting the nervous system): 113 reports
Neuralgia (pain in one or more nerves): 204 reports
Neuropathy peripheral (surface nerve damage): 676 reports
Nightmares (unpleasant dreams): 152 reports
Night sweats (sweating in night): 327 reports
Nodule (a small rock or mineral cluster): 130 reports
Nosebleed (bleeding from nose): 274 reports
Obsessive-compulsive disorder (an anxiety disorder characterized by intrusive thoughts that produce uneasiness, apprehension, fear, or worry;): 133 reports
Oedema (fluid collection in tissue): 344 reports
Oedema peripheral (superficial swelling): 1,136 reports
Oesophagitis (inflammation of oesophagus): 111 reports
Oral candidiasis (fungal infection of mouth): 126 reports
Oral pain: 241 reports
Oropharyngeal pain: 436 reports
Osteoarthritis (a joint disease caused by cartilage loss in a joint): 921 reports
Osteolysis (dissolution of bone): 131 reports
Osteomyelitis (infection of bone): 504 reports
Osteonecrosis of jaw (death of bone of jaw): 606 reports
Osteopenia (a condition where bone mineral density is lower than normal): 417 reports
Osteoporosis (bones weak and more likely to break): 584 reports
Osteosclerosis (an elevation in bone density): 125 reports
Otitis (ear infection): 122 reports
Overdose: 425 reports
Oxygen saturation decreased: 161 reports
Pain: 3,867 reports
Pain in extremity: 1,818 reports
Pain in jaw: 498 reports
Pancreatitis (inflammation of pancreas): 272 reports
Pancreatitis acute (sudden inflammation of pancreas): 102 reports
Pancytopenia (medical condition in which there is a reduction in the number of red and white blood cells, as well as platelets): 184 reports
Panic disorder: 298 reports
Paraesthesia (sensation of tingling, tickling, prickling, pricking, or burning of a person's skin with no apparent long-term physical effect): 954 reports
Paranoia (psychotic disorder characterized by delusions of persecution with or without grandeur): 146 reports
Pelvic pain: 104 reports
Pericardial effusion (fluid around the heart): 139 reports
Periodontal disease (disease that attacks the gum and bone and around the teeth): 129 reports
Periodontitis (inflammation of the tissue around the teeth): 121 reports
Peripheral swelling: 452 reports
Pharyngitis (inflammation of the pharynx, causing a sore throat): 106 reports
Photophobia (extreme sensitivity to light): 172 reports
Physical disability: 115 reports
Pleural effusion (water on the lungs): 390 reports
Pneumonia: 1,361 reports
Pneumonia aspiration (bronchopneumonia that develops due to the entrance of foreign materials into the bronchial tree): 121 reports
Pollakiuria (abnormally frequent passage of relatively small quantities or urine): 219 reports
Poor quality sleep: 110 reports
Pre-existing condition improved: 141 reports
Primary sequestrum (piece of dead bone that has become separated during the process of necrosis from normal/sound bone): 129 reports
Procedural pain: 125 reports
Productive cough: 224 reports
Psoriasis (immune-mediated disease that affects the skin): 278 reports
Psoriatic arthropathy (inflammation of the skin and joints with kin condition which typically causes patches (plaques) of red, scaly skin to develop): 102 reports
Pulmonary congestion (congestion in the lungs): 101 reports
Pulmonary embolism (blockage of the main artery of the lung): 752 reports
Pulmonary hypertension (increase in blood pressure in the lung artery): 196 reports
Pulmonary oedema (fluid accumulation in the lungs): 190 reports
Rash erythematous (redness of the skin): 123 reports
Rashes (redness): 1,549 reports
Rash pruritic (redness with itching): 134 reports
Rectal haemorrhage (bleeding from anus): 278 reports
Red blood cell count decreased: 137 reports
Renal cyst (kidney cyst): 146 reports
Renal disorder (kidney disease): 174 reports
Renal failure acute (rapid kidney dysfunction): 276 reports
Renal failure chronic (long lasting kidney dysfunction): 188 reports
Renal impairment (severely reduced kidney function): 150 reports
Renal injury (kidney injury): 180 reports
Respiratory acidosis (respiratory failure or ventilatory failure, causes the ph of blood and other bodily fluids to decrease): 267 reports
Respiratory disorder (respiratory disease): 162 reports
Restless leg syndrome (a powerful urge to move your legs): 194 reports
Rhabdomyolysis (a condition in which damaged skeletal muscle tissue breaks down): 107 reports
Rheumatoid arthritis (a chronic progressive disease causing inflammation in the joints): 441 reports
Rib fracture: 272 reports
Rickets (softening of bones): 131 reports
Road traffic accident: 472 reports
Rotator cuff syndrome (a spectrum of conditions affecting the rotator cuff tendons of the shoulder): 285 reports
Scar: 204 reports
Sciatica (a set of symptoms including pain caused by general compression or irritation of one of five spinal nerve roots of each sciatic nerve): 244 reports
Scoliosis (a medical condition in which a person's spine is curved from side to side): 201 reports
Sedation: 156 reports
Seizures (abnormal excessive or synchronous neuronal activity in the brain): 170 reports
Sepsis (a severe blood infection that can lead to organ failure and death): 413 reports
Sinus congestion (blockage of sinus): 136 reports
Sinus disorder (disease of sinus): 207 reports
Sinusitis (inflammation of sinus): 839 reports
Sinus tachycardia (a heart rhythm with elevated rate of impulses originating from the sinoatrial node): 203 reports
Sjogren syndrome (a disease that causes dryness in the mouth and eyes): 110 reports
Skin blushing/flushing (a sudden reddening of the face, neck): 319 reports
Skin discoloration: 190 reports
Skin disorder (skin disease): 133 reports
Skin exfoliation (removal of the oldest dead skin cells): 144 reports
Sleep apnea syndrome: 335 reports
Sleep disorder: 343 reports
Sneezing: 106 reports
Speech disorder: 228 reports
Speech impairment (adult) (inability to speak (adult)): 325 reports
Spinal column stenosis (narrowing of spinal column): 228 reports
Spinal compression fracture (fracture due to spinal compression on bone): 151 reports
Spinal disorder (disease of spine a back bone): 163 reports
Spinal fracture (fracture in one of vertebrae): 128 reports
Spinal osteoarthritis (joint cartilage loss in spine): 440 reports
Splenomegaly (enlargement of spleen): 105 reports
Stable angina (a constant chest pain): 191 reports
Staphylococcal infection (an infection with staphylococcus bacteria): 270 reports
Stomatitis (inflammation of mucous membrane of mouth): 303 reports
Stress and anxiety: 2,742 reports
Stroke (sudden death of a portion of the brain cells due to a lack of oxygen): 638 reports
Suicidal ideation: 587 reports
Suicide attempt: 304 reports
Surgery: 181 reports
Swallowing difficulty: 651 reports
Swelling: 457 reports
Swelling face: 280 reports
Systemic lupus erythematosus (an autoimmune disease, which means the body's immune system mistakenly, attacks healthy tissue): 132 reports
Taste - impaired: 228 reports
Tenderness (pain or discomfort when an affected area is touched): 204 reports
Tendonitis (a condition that causes pain and swelling of tendons): 172 reports
The flu (the flu is caused by an influenza virus): 348 reports
Therapeutic response decreased (less preventive response): 178 reports
Therapeutic response unexpected: 227 reports
Thirst: 109 reports
Throat irritation: 107 reports
Thrombocytopenia (decrease of platelets in blood): 438 reports
Thrombosis (formation of a blood clot inside a blood vessel): 346 reports
Thyroid diseases: 109 reports
Thyroid neoplasm (tumour of thyroid): 113 reports
Tinnitus (a ringing in the ears): 270 reports
Tooth abscess (pus formation in tooth): 355 reports
Toothaches (tooth pain): 149 reports
Tooth disorder (tooth disease): 272 reports
Tooth extraction: 254 reports
Tooth fracture: 218 reports
Tooth loss: 200 reports
Transient ischaemic attack (a transient episode of neurologic dysfunction caused by ischemia (loss of blood flow)): 255 reports
Tremor (trembling or shaking movements in one or more parts of your body): 714 reports
Tricuspid valve incompetence (inefficient heart valve): 247 reports
Tumor: 153 reports
Type 2 diabetes: 339 reports
Ulcerative colitis (inflammatory bowel disease (ibd). it causes swelling, ulcerations, and loss of function of the large intestine): 118 reports
Unresponsive to stimuli: 127 reports
Upper limb fracture: 117 reports
Upper respiratory tract infection: 406 reports
Urinary incontinence (inability to control the flow of urine and involuntary urination): 250 reports
Urinary retention (the inability to completely or partially empty the bladder): 229 reports
Urinary tract infection: 1,119 reports
Urination - painful: 294 reports
Urticaria (rash of round, red welts on the skin that itch intensely): 342 reports
Vaginal bleeding: 134 reports
Ventricular extrasystoles (premature cardiac contraction): 111 reports
Viral infection: 156 reports
Vision blurred: 691 reports
Visual acuity reduced (reduced clearness of vision): 145 reports
Visual impairment: 362 reports
Weakness: 2,149 reports
Weight decreased: 1,344 reports
Weight increased: 1,117 reports
Weight loss: 211 reports
Wheezing (a high-pitched whistling sound made while you breath): 240 reports
White blood cell count decreased: 232 reports
White blood cell count increased: 232 reports
Withdrawal syndrome (a discontinuation syndrome is a set of symptoms occurred due to discontinuation of substance): 213 reports
Wound: 145 reports

All Flexeril side effects from A to Z:

a b c d e f g h i j k l m n o p q r s t u v w x y z

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With medical big data and proven AI algorithms, eHealthMe provides a platform for everyone to run phase IV clinical trials. We study millions of patients and 5,000 more each day. Results of our real-world drug study have been referenced on 600+ peer-reviewed medical publications, including The Lancet, Mayo Clinic Proceedings, and Nature. Our analysis results are available to researchers, health care professionals, patients (testimonials), and software developers (open API).

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