Adverse Drug Reaction Classification System

Pharmaceutical Information
Drug Name Quinidine sulfate
Drug ID BADD_D01894
Description An optical isomer of [quinine], extracted from the bark of the Cinchona tree and similar plant species. This alkaloid dampens the excitability of cardiac and skeletal muscles by blocking sodium and potassium currents across cellular membranes. It prolongs cellular action potential, and decreases automaticity. Quinidine also blocks muscarinic and alpha-adrenergic neurotransmission.
Indications and Usage For the treatment of ventricular pre-excitation and cardiac dysrhythmias
Marketing Status Prescription; Discontinued
ATC Code C01BA01
DrugBank ID DB00908
KEGG ID D02272
MeSH ID D011802
PubChem ID 11069
TTD Drug ID Not Available
NDC Product Code 0185-4346; 0185-1047; 12065-1701; 49452-6180
Synonyms Quinidine | Chinidin | Apo-Quinidine | Apo Quinidine | Quinora | Quinidex | Quinidine Sulfate | Sulfate, Quinidine | Adaquin | Quincardine
Chemical Information
Molecular Formula C20H26N2O6S
CAS Registry Number 50-54-4
SMILES COC1=CC2=C(C=CN=C2C=C1)C(C3CC4CCN3CC4C=C)O.OS(=O)(=O)O
Chemical Structure
ADR Related Proteins Induced by Drug
ADR Term Protein Name UniProt AC TTD Target ID PMID
Poisoning and toxicityCytochrome P450 2D6P10635T57392Not Available
Sudden cardiac deathPotassium voltage-gated channel subfamily KQT member 1P51787T49526Not Available
Sudden cardiac deathSodium channel protein type 5 subunit alphaQ14524T39716Not Available
Sudden cardiac deathPotassium voltage-gated channel subfamily E member 1P15382Not AvailableNot Available
Sudden cardiac deathPotassium voltage-gated channel subfamily H member 2Q12809T20251Not Available
Torsade de pointesPotassium voltage-gated channel subfamily KQT member 1P51787T49526Not Available
Torsade de pointesMisshapen-like kinase 1Q8N4C8Not AvailableNot Available
Torsade de pointesPotassium voltage-gated channel subfamily H member 2Q12809T20251Not Available
ADRs Induced by Drug
ADR Term ADReCS ID ADR Frequency (FAERS) ADR Severity Grade (FAERS) ADR Severity Grade (CTCAE)
Abdominal discomfort07.01.06.001--Not Available
Acute psychosis19.03.01.001--Not Available
Agranulocytosis01.02.03.001--Not Available
Angina pectoris24.04.04.002; 02.02.02.002--
Angioedema23.04.01.001; 10.01.05.009--Not Available
Anxiety19.06.02.002--
Arrhythmia02.03.02.001--Not Available
Arthralgia15.01.02.001--
Asthenia08.01.01.001--Not Available
Ataxia17.02.02.001; 08.01.02.004--
Body temperature increased13.15.01.001--Not Available
Bronchospasm22.03.01.004; 10.01.03.012--
Cerebral ischaemia17.08.01.005; 24.04.06.003--
Cinchonism12.03.01.034--Not Available
Colour blindness06.02.09.001; 03.01.01.001--Not Available
Confusional state19.13.01.001; 17.02.03.005--
Coordination abnormal17.02.02.004--Not Available
Deafness04.02.01.001--Not Available
Delirium19.13.02.001--
Depression19.15.01.001--
Dermatitis23.03.04.002--Not Available
Diarrhoea07.02.01.001--
Diplopia06.02.06.002; 17.17.01.005--Not Available
Dizziness24.06.02.007; 17.02.05.003; 02.01.02.004--
Dyspepsia07.01.02.001--
Electrocardiogram abnormal13.14.05.001--Not Available
Fatigue08.01.01.002--
Feeling abnormal08.01.09.014--Not Available
Flushing24.03.01.002; 23.06.05.003; 08.01.03.025--
Granulomatous liver disease09.01.07.001--Not Available
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