Adverse Drug Reaction Classification System

Pharmaceutical Information
Drug Name Hydroxyzine
Drug ID BADD_D01111
Description Hydroxyzine is a first-generation histamine H1-receptor antagonist of the dephenylmethane and piperazine classes that exhibits sedative, anxiolytic, and antiemetic properties.[A1257,A187589] It was first developed in 1955,[A189726] and has since remained a relatively common treatment for allergic conditions such as pruritus, urticaria, dermatoses, and histamine-mediated pruritus.[L9677] The active metabolite of hydroxyzine, [cetirizine], is also available as an active ingredient in allergic medications, and is responsible for much of its hydroxyzine's antihistaminic effect.[A189753] Hydroxyzine is also used for generalized anxiety disorder, tension caused by psychoneurosis, and other conditions with manifestations of anxiety.[L9677]
Indications and Usage For symptomatic relief of anxiety and tension associated with psychoneurosis and as an adjunct in organic disease states in which anxiety is manifested. Useful in the management of pruritus due to allergic conditions such as chronic urticaria.
Marketing Status Prescription; Discontinued
ATC Code N05BB01
DrugBank ID DB00557
KEGG ID D08054
MeSH ID D006919
PubChem ID 3658
TTD Drug ID D0O6SX
NDC Product Code 65162-575; 65162-577; 63187-492; 52584-601; 52584-610; 65162-671; 0404-9878; 52584-007
Synonyms Hydroxyzine | 2-(2-(4-((4-Chlorophenyl)phenylmethyl)-1-piperazinyl)ethoxy)ethanol | Hydroxyzine Dihydrochloride | Vistaril | Hydroxyzine Pamoate | Pamoate, Hydroxyzine | Orgatrax | Durrax | Atarax | Hydroxyzine Hydrochloride
Chemical Information
Molecular Formula C21H27ClN2O2
CAS Registry Number 68-88-2
SMILES C1CN(CCN1CCOCCO)C(C2=CC=CC=C2)C3=CC=C(C=C3)Cl
Chemical Structure
ADR Related Proteins Induced by Drug
ADR Term Protein Name UniProt AC TTD Target ID PMID
Not AvailableNot AvailableNot AvailableNot AvailableNot Available
ADRs Induced by Drug
ADR Term ADReCS ID ADR Frequency (FAERS) ADR Severity Grade (FAERS) ADR Severity Grade (CTCAE)
Abdominal pain07.01.05.0020.000434%
Aggression19.05.01.0010.000955%Not Available
Agitation19.06.02.001; 17.02.05.0120.001042%
Alanine aminotransferase increased13.03.01.0030.000174%
Altered state of consciousness19.07.01.003; 17.02.04.0010.000434%Not Available
Amnesia19.20.01.001; 17.03.02.0010.000521%
Anaphylactic reaction24.06.03.006; 10.01.07.0010.000434%
Anxiety19.06.02.0020.000781%
Arrhythmia02.03.02.0010.000174%Not Available
Aspartate aminotransferase increased13.03.01.0060.000174%
Asphyxia22.02.02.001; 12.01.08.0110.000068%Not Available
Asthenia08.01.01.001--Not Available
Atrial fibrillation02.03.03.002--
Burning sensation17.02.06.001; 08.01.09.0290.000174%Not Available
Cardiac arrest02.03.04.0010.000159%
Cardio-respiratory arrest22.02.06.007; 02.03.04.0020.000159%Not Available
Cellulitis23.09.01.001; 11.02.01.0010.000174%Not Available
Chills15.05.03.016; 08.01.09.0010.000174%
Clonus17.02.05.0020.000174%Not Available
Completed suicide08.04.01.010; 19.12.01.0010.000883%Not Available
Confusional state19.13.01.001; 17.02.03.0050.001650%
Constipation07.02.02.001--
Cough22.02.03.001--
Death08.04.01.001--
Delirium19.13.02.0010.000347%
Depressed level of consciousness17.02.04.002--
Depression19.15.01.001--
Dermatitis23.03.04.002--Not Available
Dermatitis exfoliative23.03.07.001; 10.01.01.0040.000347%
Diarrhoea07.02.01.001--
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