Terazosin
Generic Name: Terazosin
Seek Urgent Medical Attention If:
You experience severe allergic reaction symptoms (swelling of the face, lips, tongue, or throat causing difficulty breathing), severe rash with skin peeling, sudden intense chest pain, or symptoms of overdose. Call emergency medical services immediately.
Uses & Medical Indications
Treatment of hypertension and BPH
Hypertension, Benign prostatic hyperplasia
Dosage & Administration Guidelines
1 mg at bedtime initially, titrate up
Not established
Start low, titrate slowly
20 mg per day for hypertension; 10 mg for BPH
No adjustment required
Use with caution
Side Effects & Safety Warnings
Dizziness, asthenia, nasal congestion, somnolence
First-dose syncope, priapism
Hypersensitivity to terazosin or quinazolines
Risk of syncope and postural hypotension
Interactions (Drugs, Food & Alcohol)
Other antihypertensives, PDE5 inhibitors
N/A
May worsen orthostatic hypotension
Pregnancy & Breastfeeding Safety
Use only if clearly needed
Unknown if excreted in milk, use caution
Patient Counseling & Practical Advice
Take first dose at bedtime to avoid syncope. Rise slowly.
If missed for several days, restart at 1 mg dose
Blood pressure, urinary symptoms
Related Medicines in Alpha-1 Blockers
Content for Terazosin was synthesized and fact-checked against standardized regulatory monographs, official pharmacopoeias, and national health authorities:
- Central Drugs Standard Control Organization (CDSCO) — National List of Essential Medicines
- World Health Organization (WHO) — Model List of Essential Medicines 23rd List
- Indian Pharmacopoeia Commission (IPC) — Indian Pharmacopoeia Drug Monographs
- National Health Service (NHS) — Medicines A to Z Clinical Guidelines
The information provided on this website is for educational purposes only and is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of a qualified healthcare provider with any questions you may have regarding a medical condition.

