Adverse Drug Reaction Classification System

Pharmaceutical Information
Drug Name Hydralazine
Drug ID BADD_D01081
Description Originally developed in the 1950s as a malaria treatment, hydralazine showed antihypertensive ability and was soon repurposed.[A186841] Hydralazine is a hydrazine derivative vasodilator used alone or as adjunct therapy in the treatment of hypertension and only as adjunct therapy in the treatment of heart failure.[A186820,L8782,L8785] Hydralazine is no longer a first line therapy for these indications since the development of newer antihypertensive medications.[T691] Hydralazine hydrochloride was FDA approved on 15 January 1953.[L8779]
Indications and Usage Hydralazine is indicated alone or adjunct to standard therapy to treat essential hypertension.[L8782] A combination product with isosorbide dinitrate is indicated as an adjunct therapy in the treatment of heart failure.[L8785]
Marketing Status approved
ATC Code C02DB02
DrugBank ID DB01275
KEGG ID D08044
MeSH ID D006830
PubChem ID 3637
TTD Drug ID D0K1XK
NDC Product Code Not Available
UNII 26NAK24LS8
Synonyms Hydralazine | Hydrallazin | Hydrazinophthalazine | Apressin | Nepresol | Hydralazine mono-Hydrochloride | Hydralazine mono Hydrochloride | mono-Hydrochloride, Hydralazine | Apressoline | Apresoline | Hydralazine Hydrochloride | Hydrochloride, Hydralazine
Chemical Information
Molecular Formula C8H8N4
CAS Registry Number 86-54-4
SMILES C1=CC=C2C(=C1)C=NN=C2NN
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)
Haemolytic anaemia01.06.03.002--Not Available
Haemoptysis02.11.04.009; 24.07.01.006; 22.02.03.0040.000375%Not Available
Hallucination19.10.04.003--
Headache17.14.01.001--
Hepatic encephalopathy17.13.01.003; 09.01.03.0060.000068%Not Available
Hepatic failure09.01.03.0020.000102%
Hepatic function abnormal09.01.02.001--Not Available
Hepatic necrosis09.01.07.0020.000102%
Hepatitis09.01.07.0040.000266%Not Available
Hepatitis cholestatic09.01.01.0020.000068%Not Available
Hepatomegaly09.01.05.001--Not Available
Hypersensitivity10.01.03.003--
Hypersensitivity vasculitis24.12.04.013; 23.06.02.005; 10.02.02.017; 01.01.04.0080.000218%Not Available
Hypertension24.08.02.0010.000402%
Hypertensive crisis24.08.01.0010.000068%Not Available
Hypervolaemia02.05.04.019; 14.05.06.0030.000184%Not Available
Hypoaesthesia23.03.03.081; 17.02.06.023--Not Available
Hypoglycaemia14.06.03.001; 05.06.03.0010.000136%
Hypotension24.06.03.0020.001554%
Hypoxia22.02.02.0030.000239%
Ileus paralytic07.02.05.001--Not Available
Influenza like illness08.01.03.0100.000136%
Insomnia19.02.01.002; 17.15.03.002--
Interstitial lung disease22.01.02.003; 10.02.01.0330.000170%Not Available
Jaundice23.03.03.030; 09.01.01.004; 01.06.04.0040.000266%Not Available
Joint swelling15.01.02.004--Not Available
Lacrimation increased06.08.02.004--
Leukocytosis01.02.01.0020.000170%
Leukopenia01.02.02.0010.000170%Not Available
Lung infiltration22.01.02.0040.000205%Not Available
The 3th Page    First    Pre   3 4 5 6 7    Next   Last    Total 7 Pages
ADReCS-Target
Drug Name ADR Term Target
Tip:  Drug Name  ADR Term  Protein  Variation  Gene