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  • Title: [Clinical effect of oxybutynin hydrochloride (1 mg/tablet)].
    Author: Yokoyama E, Fujino A, Kubo S, Mashimo S, Koshiba K.
    Journal: Hinyokika Kiyo; 1990 Jul; 36(7):869-76. PubMed ID: 2239587.
    Abstract:
    The clinical efficacy of oxybutynin hydrochloride was studied on 21 patients with neurogenic bladder or unstable bladder complaining of urinary frequency, urgency and urgent incontinence. Oxybutynin hydrochloride (1 mg/tablet) was administered orally for 26.7 days, on average, 3 mg per day in 3 and 6 mg per day in 18 patients and the usefulness of this drug was assessed subjectively and objectively. Of 21 patients treated, 9 had neurogenic bladder and 10 had unstable bladder. Urinary frequency was normalized in 6 out of 16 (37.5%), urgency ceased in 6 out of 17 (35.7%) and urgent incontinence disappeared in 9 out of 14 (50%) patients. The mean volume at the first desire to void and the maximum cystometric capacity increased significantly on the cystometrogram after the administration of oxybutynin hydrochloride (p less than 0.01). Furthermore, the maximum vesical pressure decreased significantly (p less than 0.05). The maximum urinary flow rate increased slightly (p less than 0.1) and the residual urine volume significantly increased (p less than 0.05) after medication, although no changes were observed in tidal voiding volume or mean urinary flow rate. Of 20 patients, 9 showed improvement globally (45%), although no subjective or objective improvement was observed in 4 (20%) patients. Marked side effects were observed in 5 cases (two of acute urinary retention, each of increased urgency, residual urine and liver dysfunction), and side effects were seen in 10 of the 21 (47.6%) patients.(ABSTRACT TRUNCATED AT 250 WORDS)
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