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Pharmacokinetic and pharmacodynamic effects of a single nocturnal dose of alprazolam. |
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| Abstract |
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Six healthy volunteers participated in a study of the pharmacokinetic and psychomotor effects of a single dose of 2 mg of alprazolam compared to placebo when given at night. Alprazolam reached a maximum concentration in the plasma between 0.5 and 2.5 h after the dose. It was extensively distributed to the tissues as shown by the large apparent volume of distribution (1.42 l/kg) and slowly eliminated (t1/2 = 13.7 h). Significant impairment of choice reaction time occurred 1 and 11 h after the dose of alprazolam compared to placebo. Critical flicker fusion was also impaired after alprazolam but the difference from the placebo administration did not reach significance. |
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International Clinical Psychopharmacology; 5(2): 111-7 |
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International clinical psychopharmacology |
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