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)
Neck pain15.03.04.0090.000019%
Nephrolithiasis20.04.01.002--
Nervous system disorder17.02.10.001--Not Available
Nightmare19.02.03.0030.000042%Not Available
Nocturia20.02.03.0010.000042%Not Available
Ocular hypertension06.03.01.003--Not Available
Oedema peripheral14.05.06.011; 08.01.07.007; 02.05.04.007--
Oesophageal carcinoma16.13.06.001; 07.21.06.0010.000019%Not Available
Orthostatic hypotension24.06.03.004; 17.05.01.0200.000178%Not Available
Pain08.01.08.004--
Pain in extremity15.03.04.0100.000070%
Palpitations02.11.04.0120.000070%
Pancreatitis acute07.18.01.0020.000019%Not Available
Paraesthesia23.03.03.094; 17.02.06.005--
Penile swelling21.12.01.006--Not Available
Penis disorder21.12.01.001--Not Available
Pharyngitis22.07.03.004; 11.01.13.003; 07.05.07.004--
Pollakiuria20.02.02.0070.000074%
Polyuria20.02.03.002--Not Available
Premature baby18.04.02.0010.000047%Not Available
Premature delivery18.07.01.0060.000019%
Presyncope02.11.04.013; 24.06.02.010; 17.02.05.0090.000047%
Priapism24.04.12.007; 21.03.01.0050.000497%Not Available
Prostatic disorder21.04.01.0010.000057%Not Available
Prostatism21.04.01.003; 20.02.03.009--Not Available
Pruritus23.03.12.0010.000089%
Purpura24.07.06.005; 23.06.01.004; 01.01.04.0030.000019%
Pyrexia08.05.02.0030.000066%
Rash23.03.13.001--Not Available
Rash erythematous23.03.13.0290.000051%Not Available
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