Drug reference
tamsulosin
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Drug class
Genitourinary (Alpha-1 Blockers)
Mechanism of action
Blocks alpha 1a adrenergic receptor in smooth muscle of prostate, decreasing bladder neck and urethral resistance.
Common side effects
- Dizziness
- Headache
- Rhinitis
- Orthostatic hypotension
- Abnormal ejaculation
Known interactions (2)
- bisoprolol + tamsulosin Moderate
- chloramphenicol + tamsulosin Moderate
Related conditions
Frequently asked questions
What drug class is tamsulosin?
tamsulosin belongs to: Genitourinary.
How does tamsulosin work?
Blocks alpha 1a adrenergic receptor in smooth muscle of prostate, decreasing bladder neck and urethral resistance.
What are the common side effects of tamsulosin?
Dizziness, Headache, Rhinitis, Orthostatic hypotension, Abnormal ejaculation
Which drugs interact with tamsulosin?
bisoprolol, chloramphenicol
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.