Abstract | OBJECTIVES: To determine the effect of discontinuation of alpha-blockade and continuation of finasteride in men with lower urinary tract symptoms and enlarged prostates receiving combination treatment and to determine whether the alpha-blocker dose influences the ability to discontinue it. METHODS: We treated 272 consecutive men with a prostate size greater than 40 g and American Urological Association symptom score greater than 20 with 5 mg finasteride and 2 mg doxazosin daily. Two hundred forty men reported a favorable response to therapy, defined as any reduction in symptom score and toleration of the medications. The dose was maintained at 2 mg doxazosin in 100 men and was titrated to 4 mg doxazosin in 80 patients and to 8 mg doxazosin in an additional 60 patients. We discontinued doxazosin at 3, 6, 9, or 12 months, while continuing finasteride, and then re-evaluated the patients 1 month later to determine whether any worsening of symptoms had resulted. RESULTS: In patients discontinuing doxazosin at 3 months, success (defined as no increase in symptom score and no desire to resume doxazosin) was reported by 20%, 15%, and 13% of those taking 2, 4, and 8 mg, respectively. In patients discontinuing doxazosin at 6 months, success was reported by 48%, 45%, and 40% of those taking 2, 4, and 8 mg, respectively. In patients discontinuing doxazosin at 9 months, success was reported by 84%, 80%, and 73% of those taking 2, 4, and 8 mg, respectively. In patients discontinuing doxazosin at 12 months, success was reported by 84%, 85%, and 87% of those taking 2, 4, and 8 mg, respectively. CONCLUSIONS: Patients with lower urinary tract symptoms and moderately enlarged prostates initially receiving combination therapy using finasteride and an alpha-blocker are likely to experience no significant symptom deterioration after discontinuing the alpha-blocker after 9 to 12 months of combination therapy regardless of the dose of alpha-blocker chosen.
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Authors | K C Baldwin, P C Ginsberg, C G Roehrborn, R C Harkaway |
Journal | Urology
(Urology)
Vol. 58
Issue 2
Pg. 203-9
(Aug 2001)
ISSN: 1527-9995 [Electronic] United States |
PMID | 11489700
(Publication Type: Clinical Trial, Journal Article, Randomized Controlled Trial)
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Chemical References |
- Adrenergic alpha-Antagonists
- Finasteride
- Doxazosin
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Topics |
- Adrenergic alpha-Antagonists
(administration & dosage)
- Aged
- Doxazosin
(administration & dosage)
- Drug Administration Schedule
- Drug Therapy, Combination
- Finasteride
(administration & dosage)
- Humans
- Male
- Prostatic Hyperplasia
(diagnosis, drug therapy)
- Treatment Outcome
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