Adverse Drug Reaction Classification System

Pharmaceutical Information
Drug Name Tamsulosin
Drug ID BADD_D02113
Description Tamsulosin is a selective alpha-1A and alpha-1B adrenoceptor antagonist that exerts its greatest effect in the prostate and bladder, where these receptors are most common.[Label] It is indicated for the treatment of signs and symptoms of benign prostatic hypertrophy.[Label] Antagonism of these receptors leads to relaxation of smooth muscle in the prostate and detrusor muscles in the bladder, allowing for better urinary flow.[Label] Other alpha-1 adrenoceptor antagonists developed in the 1980s were less selective and more likely to act on the smooth muscle of blood vessels, resulting in hypotension.[A178351] Tamsulosin was first approved by the FDA on April 15, 1997.[L6238]
Indications and Usage Tamsulosin is indicated for the treatment of signs and symptoms of benign prostatic hyperplasia.[Label] Tamsulosin is also used off label for the treatment of ureteral stones, prostatitis, and female voiding dysfunction.[A178339,L6259]
Marketing Status approved; investigational
ATC Code G04CA02
DrugBank ID DB00706
KEGG ID D08560
MeSH ID D000077409
PubChem ID 60147
TTD Drug ID D05MBZ
NDC Product Code Not Available
UNII G3P28OML5I
Synonyms Tamsulosin | LY 253352 | LY-253352 | Tamsulosin Hydrochloride | 5-(2-((2-(2-Ethoxyphenoxy)ethyl)amino)propyl)-2-methoxybenzenesulfonamide | Flomax | YM 617 | YM-617
Chemical Information
Molecular Formula C20H28N2O5S
CAS Registry Number 106138-88-9
SMILES CCOC1=CC=CC=C1OCCNC(C)CC2=CC(=C(C=C2)OC)S(=O)(=O)N
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)
Abdominal discomfort07.01.06.001--Not Available
Abdominal distension07.01.04.0010.000070%
Abdominal pain07.01.05.0020.000047%
Abdominal pain lower07.01.05.0100.000019%Not Available
Abnormal dreams19.02.03.001; 17.15.02.0010.000138%Not Available
Aggression19.05.01.0010.000019%Not Available
Altered state of consciousness19.07.01.003; 17.02.04.0010.000028%Not Available
Amblyopia06.02.01.001--Not Available
Amnesia19.20.01.001; 17.03.02.0010.000042%
Anaphylactic reaction24.06.03.006; 10.01.07.0010.000019%
Anaphylactic shock24.06.02.004; 10.01.07.0020.000019%Not Available
Angina unstable24.04.04.004; 02.02.02.0040.000019%Not Available
Angioedema22.04.02.008; 23.04.01.001; 10.01.05.0090.000028%Not Available
Angle closure glaucoma06.03.01.001--Not Available
Apnoea22.02.01.0010.000019%
Arrhythmia02.03.02.001--Not Available
Arthralgia15.01.02.001--
Arthritis15.01.01.001--
Aspiration22.02.07.0070.000019%
Asthenia08.01.01.0010.000214%Not Available
Asthma10.01.03.010; 22.03.01.0020.000019%Not Available
Atrial fibrillation02.03.03.002--
Back pain15.03.04.005--
Benign prostatic hyperplasia21.04.02.0010.000083%Not Available
Bladder irritation20.02.02.020--Not Available
Bladder pain20.02.02.001--Not Available
Blindness06.02.10.003; 17.17.01.003--Not Available
Blood pressure diastolic decreased13.14.03.003--Not Available
Blood pressure systolic decreased13.14.03.007--Not Available
Body temperature increased13.15.01.001--Not Available
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