新しい睡眠導入剤１Ｈ‐１，２，４‐Ｔｒｉａｚｏｌｙｌ　ｂｅｎｚｏｐｈｅｎｏｎｅ誘導体４５０１９１‐Ｓの薬理　Ｉ　　行動薬理学的研究

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書誌事項

タイトル別名
  • Pharmacological studies of a new sleep-inducer, 1H-1, 2, 4-triazolyl benzophenone derivatives (450191-S) (I). Behavioral analysis
  • アタラシイ スイミン ドウニュウザイ 1H-1,2,4 Triazolyl b
公開日
1984
資源種別
journal article
DOI
  • 10.1254/fpj.84.109
公開者
公益社団法人 日本薬理学会

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説明

The behavioral effects of 450191-S and its metabolites were investigated in mice, rats, cats and rhesus monkeys, and they were compared with those of related benzodiazepines (BDZ) such as diazepam and nitrazepam. Oral administration of 450191-S consistently caused sedation without excitability in mice and rats, and it was only 1/2 to 1/266 as potent as the BDZ in producing motor incoordination as assessed by traction, rotarod performance and inclined screen tests in mice, induced much less ataxia in cats and monkeys, and inhibited respiration in anesthetized cats. The locomotor activities of mice and rats measured by Animex and the open field test were not affected by 450191-S, but rearing and preening decreased with 450191-S as with the BDZ. 450191-S was equipotent with nitrazepam and 2 to 6 times more potent than diazepam and estazolam in potentiating chlorprothixene-induced hypnosis and thiopental-Na-induced anesthesia. These effects were not different with successive 14-day administration of 450191-S. Anti-pentylenetetrazol, picrotoxin and bicuculline convulsions of 450191-S had the same potency as nitrazepam, but caused much less anti-electroshock convulsion than the BDZ. 450191-S had potent antianxiety activity as observed by anti-aggressive and anti-conflict activities and had almost the same effect as diazepam on operant behavior. The metabolites M-1, M-2, M-A and M-3 showed approximately the same potency as 450191-S in inducing anesthetic potentiation and antianxiety activity, but they were much more potent in causing disturbance of the somatic functions. These results indicate that 450191-S possesses inhibitory effects on the central nervous system, including a potent sleep-inducing effect, and is characterized by markedly weak muscle relaxant activity and motor incoordination.

収録刊行物

  • 日本薬理学雑誌

    日本薬理学雑誌 84 (1), 109-154, 1984

    公益社団法人 日本薬理学会

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