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)
Urinary retention20.02.02.0110.000191%
Urinary tract infection20.08.02.001; 11.01.14.004--
Urine flow decreased20.02.02.0120.000083%Not Available
Urticaria10.01.06.001; 23.04.02.001--
Ventricular tachycardia02.03.04.0100.000019%
Vertigo17.02.12.002; 04.04.01.0030.000085%
Vision blurred17.17.01.010; 06.02.06.0070.000130%
Visual impairment06.02.10.0130.000060%Not Available
Vitreous floaters06.09.01.0050.000019%
Vomiting07.01.07.003--
Wheezing22.03.01.0090.000019%
Mental status changes19.07.01.0010.000028%Not Available
Seasonal allergy06.04.01.013; 22.04.04.008; 10.01.04.001--Not Available
Peripheral swelling08.01.03.053; 02.05.04.0150.000038%Not Available
Brain oedema17.07.02.003; 12.01.10.010--
Bladder spasm20.02.02.013--
Balance disorder08.01.03.081; 17.02.02.0070.000028%Not Available
Musculoskeletal stiffness15.03.05.027--Not Available
Musculoskeletal discomfort15.03.04.001--Not Available
Dacryostenosis acquired06.06.04.0030.000019%Not Available
Toxic skin eruption12.03.01.073; 23.03.05.003; 10.01.01.0080.000019%Not Available
Lung neoplasm malignant22.08.01.001; 16.19.02.0010.000019%Not Available
Disturbance in sexual arousal19.08.04.003--Not Available
Angiopathy24.03.02.007--Not Available
Hot flush24.03.01.005; 21.02.02.001; 08.01.03.0270.000019%
Prostate cancer21.04.02.002; 16.25.01.0010.000028%Not Available
Adverse event08.06.01.010--Not Available
Breast disorder21.05.04.004--Not Available
Cardiac disorder02.11.01.0030.000019%Not Available
Connective tissue disorder10.04.04.026; 15.06.01.006--Not Available
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