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Phenytoin

More information: STITCH, PubChem and possibly Wikipedia

ATC Code: N03AB02

Side effects

Options: Show MedDRA Preferred Terms,   display all 25 labels

Side effect Data for drug Placebo Labels
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Nystagmus 8.2% - 59.1% x x x x x x x x x x x x x x x x x x x x
Somnolence 6.7% - 27.3% x x x x x x x x x x x
Tremor 3.3% - 13.1% x x x x x x x x x x x x x x x x x x x x
Tinnitus 8.9% - 9.1% x x
Ataxia 8.2% - 18.2% x x x x x x x x x x x x x x x x x x x x
Hypotension 0.3% - 9.1% x x x x x x x x x
Ecchymosis 4.9% - 7.3% x x
Stupor 4.5% - 7.7% x x
Amblyopia 2.2% - 9.1% x x x
Infection frequent x x
Constipation frequent x x x x x x x x x x x x x x x x x x x x
Dizziness 3.3% - 31.1% x x x x x x x x x x x x x x x x x x x x
Rash frequent x x x x x x x x x x x x x x x x x x x x
Body temperature increased frequent x x x x x x x x x x x x x x x x x x x x
Hypertension frequent x x
Hypoaesthesia frequent, 2.2% - 9.1% x x
Hypokalaemia frequent x x
Nervousness frequent x x x x x x x x x x x x x x x x x x x x
Pneumonia frequent x x
Speech disorder frequent x x
Chills frequent x x
Injection site reaction frequent x x
Accidental injury 3.4% - 6.6% x x
Intracranial pressure increased frequent x x
Injection site pain frequent x x
Hyperreflexia frequent x x
Thinking abnormal frequent x x
Face oedema frequent x x
Myasthenia frequent x x
Headache 2.2% - 8.9% x x x x x x x x x x x x x x x x x x x x
Coordination abnormal 4.4% - 7.8% x x
Nausea 0% - 13.6% x x x x x x x x x x x x x x x x x x x
Dry mouth 4.4% - 4.5% x x
Hyporeflexia 2.8% - 4.9% x x
Paraesthesia 0% - 4.4% x x x x x x x x x x x
Asthenia 0% - 3.9% x x x
Dysgeusia frequent, 0% - 3.3% x x x x x x x
Pruritus 0% - 48.9% x x
Vomiting 0% - 9.1% x x x x x x x x x x x x x x x x x x x x
Dysarthria frequent, 0% - 2.2% x x
Pelvic pain 0% - 4.4% x x
Tongue disorder 0% - 4.4% x x
Brain oedema infrequent, 2.2% - 4.5% x x
Diplopia 0% - 3.3% x x
Agitation 0% - 3.3% x x
Back pain 0% - 2.2% x x
Tachycardia 0% - 2.2% x x
Vertigo 0% - 2.2% x x x x x x x
Acidosis infrequent x x
Albuminuria infrequent x x
Alkalosis infrequent x x
Amnesia infrequent x x
Anaemia infrequent x x
Hypochromic anaemia infrequent x x
Anorexia infrequent x x x
Aphasia infrequent x x
Apnoea infrequent x x
Arthralgia infrequent x x x x x x x x x x x
Asthma infrequent x x
Atelectasis infrequent x x
Atrial flutter infrequent x x
Bronchitis infrequent x x
Bundle branch block infrequent x x
Cachexia infrequent x x
Vaginal moniliasis infrequent x x
Cerebral infarction infrequent x x
Coma infrequent x x
Confusional state infrequent x x x x x x x x x x x x x x x x x x x x
Conjunctivitis infrequent x x
Cryptococcosis infrequent x x
Cyanosis infrequent x x
Deafness infrequent, 0% - 2.2% x x
Dysphagia infrequent x x x
Dehydration infrequent x x
Delirium infrequent x x
Depersonalisation infrequent x x
Dermatitis contact infrequent x x
Diabetes insipidus infrequent x x
Diarrhoea infrequent x x
Dyspepsia infrequent x x
Dyspnoea infrequent x x
Dysuria infrequent x x
Ear pain infrequent x x
Encephalitis infrequent x x
Epistaxis infrequent x x
Extrapyramidal disorder infrequent, 0% - 4.4% x x
Flatulence infrequent x x
Gastritis infrequent x x
Gastrointestinal haemorrhage infrequent x x
Cardiac arrest infrequent x x
Cardiomegaly infrequent x x
Cardiac failure congestive infrequent x x
Subdural haematoma infrequent x x
Hemiplegia infrequent x x
Haemoptysis infrequent x x
Hostility infrequent x x
Hyperaesthesia infrequent x x
Hyperglycaemia infrequent x x
Hyperkalaemia infrequent x x
Hyperventilation infrequent x x
Orthostatic hypotension infrequent x x
Influenza infrequent x x
Ketosis infrequent x x
Cramps of lower extremities infrequent x x
Leukocytosis infrequent x x
Leukopenia infrequent x x x x x x x x x x x x x x x x x x x
Meningitis infrequent x x
Hypotonia infrequent x x
Myopathy infrequent x x
Mydriasis infrequent x x
Myoclonus infrequent x x
Neurosis infrequent x x
Oliguria infrequent x x
Palpitations infrequent x x
Personality disorder infrequent x x
Petechiae infrequent x x
Pharyngitis infrequent x x
Pneumonia aspiration infrequent x x
Pneumothorax infrequent x x
Polyuria infrequent x x
Psychotic disorder infrequent x x
Pulmonary embolism infrequent x x
Hyperacusis infrequent x x
Extensor plantar response infrequent x x
Renal failure infrequent x x
Rhinitis infrequent x x
Scotoma infrequent x x
Convulsion infrequent
Shock infrequent x x x x x x x x x
Salivary hypersecretion infrequent x x
Sinusitis infrequent x x
Skin nodule infrequent x x
Sweating infrequent x x
Syncope infrequent x x
Thrombocytopenia infrequent x x x x x x x x x x x x x x x x x x x x
Thrombophlebitis infrequent x x
Urinary incontinence infrequent x x
Urticaria infrequent x x
Vaginal inflammation infrequent x x
Urinary retention infrequent x x
Encephalopathy infrequent x x
Sinus bradycardia infrequent x x
Mood swings infrequent x x
Photophobia infrequent x x
Rash pustular infrequent x x
Hypophosphataemia infrequent x x x x x x
Hypokinesia infrequent x x
Migraine infrequent x x
CNS depression NOS infrequent x x x
Generalised oedema infrequent x x
Oedema genital infrequent x x
Injection site swelling infrequent x x
Tongue oedema infrequent x x
Ventricular extrasystoles infrequent x x
Injection site haemorrhage infrequent x x
Injection site inflammation infrequent x x
Liver function test abnormal infrequent x x
Eye pain infrequent x x
Urethral pain infrequent x x
Circumoral paresthesia infrequent x x
Skin discolouration infrequent x x
Photosensitivity reaction infrequent x x
Malaise infrequent x x
Myalgia infrequent x x
Muscle twitching infrequent x x
Rectal tenesmus infrequent x x
Sputum increased infrequent x x
Sepsis infrequent x x
Akathisia infrequent x x
Rash maculo-papular infrequent x x
Hyperkinesia infrequent x x
Lymphadenopathy infrequent x x x x x x x x x x x x x x x x x x x x
Paralysis infrequent x x
Cough increased infrequent x x
Insomnia infrequent x x x x x x x x x x x x x x x x x x x x
Ileus infrequent x x
Parosmia infrequent x x
Ageusia infrequent x x x
Cerebral haemorrhage infrequent x x
Bradycardia 0.2% x x
Anaphylactic shock postmarketing x x x x x x x x x
Dyskinesia postmarketing x x x x x x x x x x x x x x x x x x x
Anaphylactoid reaction postmarketing x x x x x
Agranulocytosis x x x x x x x x x x x x x x x x x x
Anaemia megaloblastic x x x x x x x x x x x x x x x x x x
Breast disorder x
Chorea x x x x x x x x x x x x x x x x x x
Connective tissue disorder x
Dermatitis x x x x x x x x x x x x x x x
Drug eruption x
Drowsiness x
Dupuytren's contracture x
Eosinophilia x x x x x x x x x
Toxic epidermal necrolysis x x x x x x x x x x x x x x x
Extravasation x x x x x x x
Fatigue x
Fibrosis x
Fracture x x x x x
Gastrointestinal disorder x
Gingival hyperplasia x x x x x x x x x x x x x x x x x
Gingivitis x
Gynaecomastia x
Haemorrhage x
Hepatitis toxic x x x x x x x x x x x x x x x x x x
Hirsutism x x x
Hodgkin's disease x x x x x x x x x x x x x x x x x
Hyperplasia x x x x x x x x x x x x x x x x
Hypersensitivity x x x x x x x x x
Hypertrichosis x x x x x x x x x x x x x x x x x
Hypocalcaemia x x x x
Immune system disorder x
Inflammation x x x x x x x
Irritability x
Systemic lupus erythematosus x x x x x x x x x x x x x x x x x
Lymphoma x x x x x x x x x x x x x x x x x
Measles x x x x x x x x x x x x x
Necrosis x x x x x x x
Nephritis interstitial x
Nervous system disorder x
Osteomalacia x x x x x
Osteoporosis x x x x
Pancytopenia x x x x x x x x x x x x x x x x x
Peyronie's disease x x x x x x x x x x x x x x x x x
Polyarteritis nodosa x x x x x x x x x x x x x x x
Stevens-Johnson syndrome x x x x x x x x x x x x x x x x
Stuttering x
Ventricular fibrillation x x x x x x
Weight decreased x
Hepatic function abnormal x x x x x x x x x
Hepatocellular injury x x x x x x x x x x x x x x x x x x
Purpuric rash x x x x x x x x x x x x x x x x
Polyneuropathy x x x x x x x x x x x x x x x x x x
Liver injury x x
Acute hepatic failure x x x x
Shallow breathing x
Pseudolymphoma x x x x x x x x x x x x x x x x x
Epigastric pain x
Asterixis x x x x x x x x x x x x x x x x x x
Excitement x
Discomfort x x
Tenderness x x x x x x x
Trembling x
Slurred speech x x x x x x x x x x x x x x x x x x
Rash morbilliform x x x x x x x x x x x x x x
Hepatotoxicity x
Chest discomfort x
Lung infiltration x
Taste metallic x x x x
Hepatobiliary disease x
Tonic convulsion x
Cognitive impairment x
Gastric irritation x x
Lupus erythematosus x x x x x x x x x x x
Hypersensitive syndrome x x x x x x x x x
Taste altered x x x x
Blood and lymphatic system disorders x
Purple glove syndrome x x
Appetite absent x
Tingling sensation x x

Indications

Information about indications was extracted from the indications and usage sections of the labels.

PHENYTOIN

Side effects:39
Source:FDA Structured Product Label

Phenytoin

Side effects:46
Source:FDA Structured Product Label

PHENYTOIN / TARO-PHENYTOIN

Side effects:47
Source:Health Canada

PHENYTOIN SODIUM / DILANTIN - 30MG

Side effects:47
Source:Health Canada

PHENYTOIN

Side effects:47
Source:FDA Structured Product Label

Phenytoin

Side effects:48
Source:FDA Structured Product Label

PHENYTOIN

Side effects:48
Source:FDA Structured Product Label

Phenytoin

Side effects:48
Source:FDA Structured Product Label

Phenytoin

Side effects:49
Source:FDA Structured Product Label

PHENYTOIN

Side effects:49
Source:FDA Structured Product Label

PHENYTOIN

Side effects:50
Source:FDA Structured Product Label

PHENYTOIN

Side effects:54
Source:FDA Structured Product Label

PHENYTOIN

Side effects:56
Source:FDA Structured Product Label

Phenytoin

Side effects:56
Source:FDA Structured Product Label

PHENYTOIN

Side effects:181
Source:FDA Structured Product Label

PHENYTOIN

Side effects:184
Source:FDA Structured Product Label

Color scheme:

standard – alternative

    100%
    75%
    50%
    10%
    frequent (1% to 100%)
    infrequent (0.1% to 1%)
    rare (<0.1%)
    postmarketing
    0%
    no frequency information
    not found on label