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Gaboxadol is a selective extrasynaptic GABA(A) receptor agonist previously in development for the treatment of insomnia. Due to its short half-life (1.5-2 h) it is expected to be free from residual effects the next morning. The present study assessed the residual effects of evening and middle-of-the-night administration of 15 mg of gaboxadol on cognitive,(More)
Emedastine is registered in its country of origin (Japan) as an antihistamine for the indication of seasonal allergic rhinitis. Further research on the drug's sedating properties was needed to secure its registration elsewhere. The present study was designed to compare the effects of emedastine 2 mg and 4 mg twice daily after single and repeated doses, on(More)
The risk of "hangover" effects, e.g. residual daytime sleepiness and impairment of psychomotor and cognitive functioning the day after bedtime administration, is one of the main problems associated with the use of hypnotics. However, the severity and duration of these effects varies considerably between hypnotics and is strongly dependent on the dose(More)
BACKGROUND In many European countries, Canada, and Japan, the nonbenzodiazepine zopiclone is now among the most frequently prescribed hypnotic drugs. This finding can be explained by the growing view among physicians that zopiclone is more effective and safer than conventional benzodiazepines. However, in 4 studies using similar procedures, it has been(More)
RATIONALE Alprazolam extended-release (XR) is approved for the treatment of panic disorder. This sustained formulation is absorbed in a delayed manner and is therefore expected to produce fewer and less severe side effects than its immediate release equivalent (alprazolam IR). The effect of alprazolam XR on potentially dangerous daily activities, such as(More)
AIMS Previous studies have demonstrated that the antihistamines mequitazine, cetirizine and dexchlorpheniramine produce mild sedation after single doses. It is unknown, however, whether acute sedation persists after repeated dosing. Therefore, this study assessed the effects of repeated dosing of these antihistamines on driving and psychomotor performance.(More)
Effects of benzodiazepine (diazepam, lorazepam) and benzodiazepine-like anxiolytics (alpidem, suriclone) and a 5-HT-3 antagonist (ondansetron) on actual driving performance were measured in three double-blind, placebo-controlled studies. Subjects were healthy volunteers in two and anxious patients in the third. Treatments lasted for 8 days. Standardized(More)
A major problem related to hypnotic drug use is residual sedation the morning after bedtime administration. This constitutes a particular safety hazard for patients who have to drive a car the next morning. Information on the severity of residual effects is mainly derived from studies conducted with young healthy volunteers. However, most users of hypnotics(More)
STUDY OBJECTIVES To compare residual effects of zaleplon 10 mg, zopiclone 7.5 mg, and placebo, and a social dose of alcohol on car driving, memory, and psychomotor performance. DESIGN Two-part placebo controlled, crossover study. Part 1 was single blind, Part 2 double blind. SETTING University research institute. PARTICIPANTS Thirty healthy volunteers(More)
BACKGROUND Mequitazine is a so-called 'non-sedative' second-generation antihistamine even though it has never been firmly established that this drug's sedative potential actually differs from that of the 'sedative' first-generation antihistamines. OBJECTIVE The present study compares the sedative effects of three doses of mequitazine on actual driving,(More)