Cohort experience in 39 psychiatric outpatients with high doses of an enteric-coated weekly formulation of fluoxetine
Cohort experience in 39 psychiatric outpatients with high doses of an enteric-coated weekly formulation of fluoxetine
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DOI:
10.2165/00044011-200222030-00004
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发表时间:
2002-01-01
影响因子:
3.2
通讯作者:
Wilson, MG
中科院分区:
文献类型:
--
作者:
Buongiorno, PA;Plewes, JM;Wilson, MG
Background: A new formulation of enteric-coated oral fluoxetine given at a dose of 90mg once weekly has been shown in clinical trials to be well tolerated, safe, effective and associated with very high compliance. It has been approved by regulatory agencies for marketing in the continuation phase of antidepressant therapy. However, literature reports on experience with the once-weekly formulation in clinical practice, especially in patients with substantial medical and psychiatric co-morbidities, are sparse.Methods: Enteric-coated fluoxetine 90mg was provided in a clinic setting to 39 psychiatric outpatients (aged 18 to 78 years) with a confirmed diagnosis of major depression. A co-morbid medical or psychiatric condition was present in 45.8% of the women and 42.9% of the men; most of these patients were on concomitant medication. Seven patients were previously untreated for depression. The tolerability, efficacy and compliance of once-weekly fluoxetine (90 to 540mg) were evaluated in this patient population utilising data from patient charts.Results: Of the 32 patients already receiving fluoxetine, 31 were successfully converted from a single daily dose to a single weekly dose (90 to 540mg) and one patient was converted to a divided dosage (twice weekly). The remaining seven patients were started on weekly fluoxetine administration de novo, Presently, all 39 remain in remission from depression, with no changes in affect, co-morbid conditions or compliance. After dosage adjustments to date, this cohort has been monitored and has a cumulative exposure of weekly fluoxetine administration of 7.2 patient-years. No patient has discontinued enteric-coated fluoxetine therapy. No serious adverse events or hospitalisations were reported. There were no new reports of queried events of nausea, headache or sexual dysfunction. There were no new spontaneous reports of nervousness, asthenia, diarrhoea, abnormal thinking or somnolence.Conclusions: In our clinical experience, enteric-coated fluoxetine, administered at higher doses once or twice weekly, was effective and well tolerated for short-term maintenance treatment of major depressive disorder. The simple once- or twice-weekly administration could be a convenient alternative for some patients during long-term treatment of depression.