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  • Title: Evaluation of low-dose venlafaxine hydrochloride for the therapy of hot flushes in breast cancer survivors.
    Author: Biglia N, Torta R, Roagna R, Maggiorotto F, Cacciari F, Ponzone R, Kubatzki F, Sismondi P.
    Journal: Maturitas; 2005 Sep 16; 52(1):78-85. PubMed ID: 16143229.
    Abstract:
    OBJECTIVE: To evaluate the efficacy and tolerability of long-term treatment with venlafaxine at low dose for the reduction of vasomotor symptoms in breast cancer survivors. DESIGN: Forty consecutive breast cancer patients suffering troublesome hot flushes have been treated for 8 weeks with venlafaxine XR 37.5 mg/day in an open-label study. Vasomotor symptoms have been evaluated before starting treatment and every 4 weeks with a hot flushes diary pointing out the number and the severity of vasomotor symptoms. A Beck Depression Inventory (BDI) was completed at baseline and at the end of the treatment. RESULTS: Thirty patients had completed the first 4 weeks of treatment, reporting a reduction of hot flushes frequency of 39% as compared to baseline (p<0.001). After 8 weeks of treatment, a further significant reduction was observed both for the hot flushes frequency (-53%; p<0.001) and for the hot flushes score (-59%; p<0.001), a measure which reflects both the number and the severity of hot flushes. Very few side effects were reported, mostly nausea in the first 2 weeks of assumption and mouth dryness. Only 23 women had completed BDI at week 8; a reduction of 23% was observed (p=0.000). CONCLUSION: Venlafaxine is an effective treatment for the relief of vasomotor symptoms in patients previously treated for breast cancer. A favourable effect is maintained also in those patients using tamoxifen as adjuvant therapy. The use of the low dose (37.5 mg/day) is associated with minimal side effects and produces a good improvement in hot flushes if pursued over 8 weeks.
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