Drug reference
prazosin
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
Alpha-1 blocker inhibits postsynaptic alpha-adrenergic receptors, causing arterial and venous dilation and a subsequent decrease in blood pressure. 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
- Dizziness
- Drowsiness
- Headache
- Weakness
- Palpitation
Known interactions (1)
- prazosin + sildenafil Major
Related conditions
Frequently asked questions
What drug class is prazosin?
prazosin belongs to: Genitourinary.
How does prazosin work?
Alpha-1 blocker inhibits postsynaptic alpha-adrenergic receptors, causing arterial and venous dilation and a subsequent decrease in blood pressure. 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 prazosin?
Dizziness, Drowsiness, Headache, Weakness, Palpitation
Which drugs interact with prazosin?
sildenafil
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