Drug reference
terazosin
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 postsynaptic alpha-1 receptor; alpha blockade causes arterial and venous dilation, Selective agents cause less tachycardia than do nonselective agents. a non-specific selective alpha blocker; acts on blood vessels (lower blood pressure) and prostate (relax prostate and urethra muscles and relax bladder neck).
Common side effects
- Asthenia
- Lightheadedness
- Dizziness
- Hypotension
- Rhinitis/nasal congestion
Contraindications
- Hypersensitivity to terazosin, other quinazolines
Related conditions
Frequently asked questions
What drug class is terazosin?
terazosin belongs to: Genitourinary.
How does terazosin work?
Blocks postsynaptic alpha-1 receptor; alpha blockade causes arterial and venous dilation, Selective agents cause less tachycardia than do nonselective agents. a non-specific selective alpha blocker; acts on blood vessels (lower blood pressure) and prostate (relax prostate and urethra muscles and relax bladder neck).
What are the common side effects of terazosin?
Asthenia, Lightheadedness, Dizziness, Hypotension, Rhinitis/nasal congestion
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