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More information: STITCH, PubChem and possibly Wikipedia

ATC Code: C01BA03

Side effects

Options: Hide MedDRA Preferred Terms

MedDRA Preferred Term Side effect Data for drug Placebo Labels
1 2 3
Dry mouth Dry mouth 16-30% - 32% x x x
Urinary hesitation Urinary hesitation 14% x x x
Constipation Constipation 11% x x x
Urinary retention Urinary retention 7-13% x x x
Acute retention of urine x
Agranulocytosis Agranulocytosis x
Angioedema Angioedema x x
Decreased appetite Anorexia x x x
Apnoea Apnoea x
Atrioventricular block Atrioventricular block x x x
Block heart x
Bundle branch block Bundle branch block x
Cardiac output decreased Cardiac output decreased x
Chest pain Chest pain x x x
Coma Coma x
Confusional state Confusional state x x
Feeling abnormal Confusional state x x
Malaise x x x
Cyanosis Cyanosis x x
Depression Depression x
Diarrhoea Diarrhoea x x x
Diplopia Diplopia x x
Dizziness Dizziness x x x
Syncope x x
Somnolence Drowsiness x x
Dyspepsia Dyspepsia x x
Dyspnoea Dyspnoea x x x
Dysuria Dysuria x x x
Oedema Oedema x x x
Dermatitis Rash x x
Rash Rash x x
Asthenia Fatigue x x x
Fatigue Fatigue x x x
Body temperature increased Body temperature increased x
Flatulence Flatulence x x
Abdominal bloating x
Gynaecomastia Gynaecomastia x
Headache Headache x x x
Cardiac arrest Cardiac arrest x x
Cardiac failure Cardiac failure x
Cardiac failure congestive Cardiac failure congestive x x
Hepatitis Hepatitis x
Hypercholesterolaemia Hypercholesterolaemia x
Hypoglycaemia Hypoglycaemia x x x
Hypokalaemia Hypokalaemia x x
Hypotension Hypotension x x x
Jaundice cholestatic Jaundice cholestatic x x x
Mydriasis Mydriasis x
Nausea Nausea x x x
Nervousness Nervousness x
Tension Nervousness x
Neutropenia Neutropenia x x
Hypoaesthesia Numbness x
Sensory loss Numbness x
Pain Pain x
Ache x
Pallor Pallor x x
Paraesthesia Paraesthesia x x
Tingling sensation x
Pruritus Pruritus x x x
Psychotic disorder Psychotic disorder x x
Shock Shock x
Syncope x x
Cardiogenic shock Cardiogenic shock x
Skin disorder Skin disorder x
Syncope Syncope x x
Loss of consciousness Syncope x x
Loss of consciousness x
Thrombocytopenia Thrombocytopenia x
Torsade de pointes Torsade de pointes x x
Pollakiuria Pollakiuria x
Urticaria Urticaria x x
Ventricular fibrillation Ventricular fibrillation x
Ventricular tachycardia Ventricular tachycardia x x
Vertigo Vertigo x x
Vomiting Vomiting x x x
Weight increased Weight increased x
Dissociation Dissociation x x
Blood urea increased Blood urea increased x x x
Blood creatinine increased Creatinine increased x x x
Muscular weakness Muscular weakness x
Accommodation disorder Accommodation disorder x x
Haemoglobin decreased Haemoglobin decreased x x x
Malaise Malaise x x x
Discomfort Malaise x x x
Ill-defined disorder Malaise x x x
Nasal dryness Nasal dryness x
Cardiac fibrillation Cardiac fibrillation x x
Nodal rhythm Nodal rhythm x x
Abdominal pain upper Epigastric pain x x
Rash morbilliform Rash morbilliform x x
Hepatic enzyme increased Hepatic enzyme increased x
Erectile dysfunction Erectile dysfunction x x x
Prostatism Prostatism x
Defect conduction intraventricular Defect conduction intraventricular x
Acute psychosis Acute psychosis x
Dry eye Dry eye x x
Vision blurred Vision blurred x x x
Systemic lupus erythematosus Lupus erythematosus x
Bradycardia Bradycardia x x
Electrocardiogram QRS complex QRS complex x
Rash generalised Rash generalised x
Sinus arrest Sinus arrest x
Dysgeusia Bad taste x x
Feeling hot Sensation of warmth x x
Hyperhidrosis Sweating increased x x
Poisoning Intoxication x
Arrhythmia Proarrhythmic effect x
Insomnia Insomnia x x x
Abdominal distension Abdominal bloating x


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


Side effects:51
Source:FDA Structured Product Label


Side effects:66
Source:Health Canada

Chemical Formula: C21H29N3O / RYTHMODAN

Side effects:66

Color scheme:


    frequent (1% to 100%)
    infrequent (0.1% to 1%)
    rare (<0.1%)
    no frequency information
    not found on label