📋 Indications & Clinical Dosage
*Mild to moderate hypertension:*
Adult: 1 mg daily for 7 days, then increased if necessary to 2 mg daily, to be taken at bedtime; maintenance 2-10 mg once daily, doses above 20 mg rarely improve efficacy.
*Benign prostatic hyperplasia:*
Adult: Initially 1 mg daily, dose should be taken at bedtime, if necessary dose may be doubled at intervals of 1-2 weeks according to response; maintenance 5-10 mg daily; max. 10 mg per day
Children: Not recommended.
🔄 Drug Interactions
Beta-blockers, diuretics, ACE inhibitors, calcium channel blockers, sildenafil, tadalafil, vardenafil, NSAIDs, pressor agents (norepinephrine).
⚠️ Adverse Reactions / Side Effects
Angioedema, asthenia, back pain, blurred
vision, decreased libido, depression, dizziness, drowsiness, dry mouth, dyspnea, erectile disorders, GI disturbances, headache, hypersensitivity reactions, hypotension, intra-operative floppy iris syndrome, nervousness, oedema, pain in extremities, palpitations, paraesthesia, postural hypotension, priapism, pruritus, rash, rhinitis, syncope, tachycardia thrombocytopenia, weight gain