1 Answers
Hypertension:
- Recommended starting dose is 0.5 mg (in the evening), twice or thrice daily for 3 to 7 days. This dose should be increased to 1 mg twice or three times daily for a further 3 to 7 days. Thereafter, the daily dose should be increased gradually as determined by the patient's response to the blood pressure lowering effect. Most patients are likely to be maintained on a dosage regimen of Prazosin alone of up to 15 mg daily in divided doses.
- Maximum dose: 20 mg in divided doses.
Patients receiving other antihypertensive therapy but with inadequate control:
- The dosage of the other drug should be reduced to a maintenance level and Prazosin initiated at 0.5 mg in the evening, then continuing with 0.5 mg twice or three times daily.
- Subsequent dosage increases should be made gradually depending upon the patient's response.
Congestive heart failure:
- The recommended starting dose is 0.5 mg two, three or four times daily, increasing to 4 mg in divided doses. Dosage should be adjusted according to the patient's response, based on careful monitoring of cardiopulmonary signs and symptoms.
- Usual daily maintenance dosage: 4 mg to 20 mg in divided doses.
Raynaud's disease:
- The recommended starting dosage is 0.5 mg twice daily given for a period of 3 to 7 days and should be adjusted according to the patient's clinical response.
- Usual maintenance dosage is 1 mg or 2 mg twice daily.
Benign prostatic hyperplasia:
- The recommended dosage is 0.5 mg twice daily for a period of 3 to 7 days, with the initial dose administered in the evening. The dosage should then be adjusted according to clinical response.
- The usual maintenance dosage is 2 mg twice daily.
May be taken with or without food. Starting dose is best taken within dinner, at least 2 hr before retiring. Maintenance doses may be taken with or without meals.
Patients with moderate to severe grades of renal impairment: Evidence to date shows that Prazosin does not further compromise renal function when used in patients with renal impairment. As some patients in this category have responded to small doses of Prazosin, it is recommended that therapy be initiated at 0.5 mg daily and that dosage increases be instituted cautiously.
Patients with hepatic dysfunction: it is recommended that therapy should be initiated at 0.5 mg daily and that dosage should be increased cautiously.
Use in the elderly: Since the elderly may be more susceptible to hypotension, therapy should be initiated with the lowest possible dose.
আলফাপ্রেস এক্সআর ট্যাবলেট (এক্সটেন্ডেড রিলিজ) সম্পর্কে বিস্তারিত জেনে নিন এই লিঙ্ক থেকে আলফাপ্রেস এক্সআর