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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
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
Stupor 4.5% - 7.7% x
Amblyopia 2.2% - 9.1% x x
Infection frequent 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
Hypoaesthesia frequent, 2.2% - 9.1% x
Hypokalaemia frequent 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
Speech disorder frequent x
Chills frequent x
Injection site reaction frequent x
Accidental injury 3.4% - 6.6% x
Intracranial pressure increased frequent x
Injection site pain frequent x
Hyperreflexia frequent x
Thinking abnormal frequent x
Face oedema frequent x
Myasthenia frequent 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
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
Hyporeflexia 2.8% - 4.9% x
Paraesthesia 0% - 4.4% x x x x x x x x x x x
Asthenia 0% - 3.9% x x
Dysgeusia frequent, 0% - 3.3% x x x x x x
Pruritus 0% - 48.9% 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
Pelvic pain 0% - 4.4% x
Tongue disorder 0% - 4.4% x
Brain oedema infrequent, 2.2% - 4.5% x
Diplopia 0% - 3.3% x
Agitation 0% - 3.3% x
Back pain 0% - 2.2% x
Tachycardia 0% - 2.2% x
Vertigo 0% - 2.2% x x x x x x
Acidosis infrequent x
Albuminuria infrequent x
Alkalosis infrequent x
Amnesia infrequent x
Anaemia infrequent x
Hypochromic anaemia infrequent x
Anorexia infrequent x x
Aphasia infrequent x
Apnoea infrequent x
Arthralgia infrequent x x x x x x x x x x
Asthma infrequent x
Atelectasis infrequent x
Atrial flutter infrequent x
Bronchitis infrequent x
Bundle branch block infrequent x
Cachexia infrequent x
Vaginal moniliasis infrequent x
Cerebral infarction infrequent x
Coma infrequent 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
Cryptococcosis infrequent x
Cyanosis infrequent x
Deafness infrequent, 0% - 2.2% x
Dysphagia infrequent x x
Dehydration infrequent x
Delirium infrequent x
Depersonalisation infrequent x
Dermatitis contact infrequent x
Diabetes insipidus infrequent x
Diarrhoea infrequent x
Dyspepsia infrequent x
Dyspnoea infrequent x
Dysuria infrequent x
Ear pain infrequent x
Encephalitis infrequent x
Epistaxis infrequent x
Extrapyramidal disorder infrequent, 0% - 4.4% x
Flatulence infrequent x
Gastritis infrequent x
Gastrointestinal haemorrhage infrequent x
Cardiac arrest infrequent x
Cardiomegaly infrequent x
Cardiac failure congestive infrequent x
Subdural haematoma infrequent x
Hemiplegia infrequent x
Haemoptysis infrequent x
Hostility infrequent x
Hyperaesthesia infrequent x
Hyperglycaemia infrequent x
Hyperkalaemia infrequent x
Hyperventilation infrequent x
Orthostatic hypotension infrequent x
Influenza infrequent x
Ketosis infrequent x
Cramps of lower extremities infrequent x
Leukocytosis infrequent 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
Hypotonia infrequent x
Myopathy infrequent x
Mydriasis infrequent x
Myoclonus infrequent x
Neurosis infrequent x
Oliguria infrequent x
Palpitations infrequent x
Personality disorder infrequent x
Petechiae infrequent x
Pharyngitis infrequent x
Pneumonia aspiration infrequent x
Pneumothorax infrequent x
Polyuria infrequent x
Psychotic disorder infrequent x
Pulmonary embolism infrequent x
Hyperacusis infrequent x
Extensor plantar response infrequent x
Renal failure infrequent x
Rhinitis infrequent x
Scotoma infrequent x
Convulsion infrequent
Shock infrequent x x x x x x x x x
Salivary hypersecretion infrequent x
Sinusitis infrequent x
Skin nodule infrequent x
Sweating infrequent x
Syncope infrequent 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
Urinary incontinence infrequent x
Urticaria infrequent x
Vaginal inflammation infrequent x
Urinary retention infrequent x
Encephalopathy infrequent x
Sinus bradycardia infrequent x
Mood swings infrequent x
Photophobia infrequent x
Rash pustular infrequent x
Hypophosphataemia infrequent x x x x x
Hypokinesia infrequent x
Migraine infrequent x
CNS depression NOS infrequent x x
Generalised oedema infrequent x
Oedema genital infrequent x
Injection site swelling infrequent x
Tongue oedema infrequent x
Ventricular extrasystoles infrequent x
Injection site haemorrhage infrequent x
Injection site inflammation infrequent x
Liver function test abnormal infrequent x
Eye pain infrequent x
Urethral pain infrequent x
Circumoral paresthesia infrequent x
Skin discolouration infrequent x
Photosensitivity reaction infrequent x
Malaise infrequent x
Myalgia infrequent x
Muscle twitching infrequent x
Rectal tenesmus infrequent x
Sputum increased infrequent x
Sepsis infrequent x
Akathisia infrequent x
Rash maculo-papular infrequent x
Hyperkinesia infrequent 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
Cough increased infrequent 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
Parosmia infrequent x
Ageusia infrequent x x
Cerebral haemorrhage infrequent x
Bradycardia 0.2% 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
Agranulocytosis x 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 x
Breast disorder x
Chorea x 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 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 x
Extravasation x 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 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 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 x
Hyperplasia x 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 x
Hypertrichosis x 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 x
Irritability x
Systemic lupus erythematosus x 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 x
Measles x x x x x x x x x x x x x x
Necrosis x 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 x
Peyronie's disease x 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 x
Stevens-Johnson syndrome x 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 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 x
Purpuric rash x 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 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 x
Epigastric pain x
Asterixis x x x x x x x x x x x x x x x x x x x
Excitement x
Discomfort x
Tenderness x 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 x
Rash morbilliform x 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 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 x
Blood and lymphatic system disorders x
Purple glove syndrome x x
Appetite absent x
Tingling sensation 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: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

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