Adverse Drug Reaction Classification System

Pharmaceutical Information
Drug Name Clozapine
Drug ID BADD_D00511
Description A tricyclic dibenzodiazepine, classified as an atypical antipsychotic agent. It binds several types of central nervous system receptors, and displays a unique pharmacological profile. Clozapine is a serotonin antagonist, with strong binding to 5-HT 2A/2C receptor subtype. It also displays strong affinity to several dopaminergic receptors, but shows only weak antagonism at the dopamine D2 receptor, a receptor commonly thought to modulate neuroleptic activity. Agranulocytosis is a major adverse effect associated with administration of this agent.
Indications and Usage For use in patients with treatment-resistant schizophrenia.
Marketing Status approved
ATC Code N05AH02
DrugBank ID DB00363
KEGG ID D00283
MeSH ID D003024
PubChem ID 135398737
TTD Drug ID D0Z1RV
NDC Product Code 73377-150; 51079-288; 51079-749; 51407-085; 63629-2359; 0378-3813; 65862-846; 63552-062; 64374-004; 76072-1010; 16729-142; 57664-345; 0378-0973; 53296-0033; 0093-5416; 51079-921; 51079-922; 57664-211; 65862-845; 69809-0127; 55154-3568; 0378-0825; 0378-0860; 12828-0072; 51407-086; 63629-2360; 69809-0126; 67835-0028; 51862-900; 57664-241; 69809-0135; 70518-3391; 0093-5376; 0093-5417; 51862-902; 60687-404; 60687-415; 63629-2362; 0378-3815; 0904-7088; 65015-706; 0093-5419; 51862-901; 60687-426; 0378-0972; 65862-844; 70518-3357; 65862-847; 0904-7089; 63552-063; 16729-141; 0093-5377; 52817-601; 57664-347; 60687-548; 63629-2361; 69809-0130; 0904-7087; 71554-025; 51862-903
UNII J60AR2IKIC
Synonyms Clozapine | Clozaril | Leponex
Chemical Information
Molecular Formula C18H19ClN4
CAS Registry Number 5786-21-0
SMILES CN1CCN(CC1)C2=NC3=C(C=CC(=C3)Cl)NC4=CC=CC=C42
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)
Insulin resistance14.06.02.003; 05.06.02.0030.001223%Not Available
Intentional self-injury19.12.01.002; 12.01.08.0360.078875%Not Available
Intermittent explosive disorder19.18.01.0060.001834%Not Available
Intestinal dilatation07.02.02.0100.005503%Not Available
Intestinal infarction24.04.08.008; 07.15.02.0060.003669%Not Available
Intestinal ischaemia07.15.02.001; 24.04.08.0010.021400%Not Available
Intestinal obstruction07.13.01.0020.075206%Not Available
Intestinal perforation07.04.06.0020.020789%Not Available
Intestinal ulcer07.04.06.0030.001223%Not Available
Intracranial aneurysm17.08.06.001; 24.02.04.0010.002446%Not Available
Iron deficiency14.13.02.0020.009171%Not Available
Iron deficiency anaemia14.13.02.001; 01.03.01.0020.010394%Not Available
Irritability19.04.02.013; 08.01.03.011--
Jaundice23.03.03.030; 09.01.01.004; 01.06.04.004--Not Available
Jaundice cholestatic09.01.01.005--Not Available
Judgement impaired19.05.01.009; 17.03.03.0050.003669%Not Available
Ketoacidosis14.01.01.008--Not Available
Kidney fibrosis20.01.02.0110.001834%Not Available
Large intestinal ulcer07.04.06.004--
Laryngeal cancer22.08.02.001; 16.19.03.0010.003669%Not Available
Laryngitis22.07.03.001; 11.01.13.001--
Left ventricular failure02.05.02.0010.006114%Not Available
Lethargy19.04.04.004; 17.02.04.003; 08.01.01.008--
Leukaemia16.01.03.001; 01.10.03.0010.016509%
Leukocytosis01.02.01.0020.255579%
Leukopenia01.02.02.0010.187465%Not Available
Liver disorder09.01.08.001--Not Available
Logorrhoea17.02.08.006; 19.19.02.0010.003057%Not Available
Loss of consciousness17.02.04.004--Not Available
Low cardiac output syndrome02.05.01.0080.001223%Not Available
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ADReCS-Target
Drug Name ADR Term Target
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