Adverse Drug Reaction Classification System

Pharmaceutical Information
Drug Name Chloroquine
Drug ID BADD_D00440
Description Chloroquine is an aminoquinolone derivative first developed in the 1940s for the treatment of malaria.[A191655] It was the drug of choice to treat malaria until the development of newer antimalarials such as [pyrimethamine], [artemisinin], and [mefloquine].[A191787] Chloroquine and its derivative [hydroxychloroquine] have since been repurposed for the treatment of a number of other conditions including HIV, systemic lupus erythematosus, and rheumatoid arthritis.[A192432] **The FDA emergency use authorization for [hydroxychloroquine] and chloroquine in the treatment of COVID-19 was revoked on 15 June 2020.[L14312]** Chloroquine was granted FDA Approval on 31 October 1949.[L12054]
Indications and Usage Chloroquine is indicated to treat infections of _P. vivax_, _P. malariae_, _P. ovale_, and susceptible strains of _P. falciparum_.[L12051] It is also used to treat extraintestinal amebiasis.[L12051] Chloroquine is also used off label for the treatment of rheumatic diseases,[A191655] as well as treatment and prophylaxis of Zika virus.[A191649,A191652] Chloroquine is currently undergoing clinical trials for the treatment of COVID-19.[A191631]
Marketing Status approved; investigational; vet_approved
ATC Code P01BA01
DrugBank ID DB00608
KEGG ID D02366
MeSH ID D002738
PubChem ID 2719
TTD Drug ID D09EGZ
NDC Product Code Not Available
UNII 886U3H6UFF
Synonyms Chloroquine | Chlorochin | Chingamin | Khingamin | Nivaquine | Chloroquine Sulfate | Sulfate, Chloroquine | Chloroquine Sulphate | Sulphate, Chloroquine | Aralen | Arequin | Arechine
Chemical Information
Molecular Formula C18H26ClN3
CAS Registry Number 54-05-7
SMILES CCN(CC)CCCC(C)NC1=C2C=CC(=CC2=NC=C1)Cl
Chemical Structure
ADRs Induced by Drug
*The priority for ADR severity classification is based on FAERS assessment, followed by the most severe level in CTCAE rating. If neither is available, it will be displayed as 'Not available'.
**The 'Not Available' level is hidden by default and can be restored by clicking on the legend twice.
ADR Term ADReCS ID ADR Frequency (FAERS) ADR Severity Grade (FAERS) ADR Severity Grade (CTCAE)
Retinal disorder06.08.03.005---
Retinopathy06.10.02.001; 24.03.07.003--
Right ventricular failure02.05.03.0020.000142%-
Seizure17.12.03.0010.000283%
Skin exfoliation23.03.07.003---
Stevens-Johnson syndrome10.01.01.045; 11.07.01.005; 12.03.01.014; 23.03.01.0070.000142%
Suicide attempt19.12.01.0040.000213%
Syncope02.11.04.015; 17.02.04.008; 24.06.02.012--
Systemic lupus erythematosus10.04.03.004; 15.06.02.003; 23.03.02.0060.000142%-
Thrombocytopenia01.08.01.0020.000142%-
Tinnitus04.04.01.002; 17.04.07.004--
Torticollis15.05.04.003; 17.01.03.003---
Toxic epidermal necrolysis10.01.01.006; 11.07.01.006; 12.03.01.015; 23.03.01.008--
Urticaria10.01.06.001; 23.04.02.001--
Ventricular fibrillation02.03.04.0080.000283%
Ventricular hypertrophy02.04.02.0120.000425%-
Vision blurred06.02.06.007; 17.17.01.010--
Visual acuity reduced06.02.10.012; 17.17.01.0110.000213%
Visual field defect06.02.07.003; 17.17.01.001---
Visual impairment06.02.10.013---
Vomiting07.01.07.0030.000425%
Mental status changes19.07.01.0010.000142%-
Cardiotoxicity02.11.01.009; 12.03.01.0070.000354%-
Hypoacusis04.02.01.006--
Retinal injury06.11.01.001; 12.01.04.002---
Electrocardiogram change13.14.05.014---
Decreased appetite08.01.09.028; 14.03.01.005--
Psychotic disorder19.03.01.002--
Acute kidney injury20.01.03.0160.000142%
Multiple organ dysfunction syndrome08.01.03.0570.000283%
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