JP7385990B2 - 過眠症治療剤 - Google Patents
過眠症治療剤 Download PDFInfo
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Description
項1. 加味逍遙散エキスを含む過眠症治療剤。
項2. 前記加味逍遙散エキスが、トウキ、シャクヤク、ジュツ、ブクリョウ、サイコ、ボタンピ、サンシシ、カンゾウ、ショウキョウ、及びハッカの混合物の抽出エキスである、項1に記載の過眠症治療剤。
項3. 不眠症を伴わない過眠症に対して用いられる、項1又は2に記載の過眠症治療剤。
本発明の過眠症治療剤は、加味逍遙散エキスを含むことを特徴とする。加味逍遙散エキスの具体的な組成は、原典に基づいていれば特に限定されない。具体的には、加味逍遙散エキスとして、トウキ、シャクヤク、ジュツ、ブクリョウ、サイコ、ボタンピ、サンシシ、カンゾウ、ショウキョウ、及びハッカの混合物の抽出エキスが挙げられる。
本発明の過眠症治療剤においては、上記加味逍遙散エキスの他に、更に製剤形態に応じた添加剤や基剤を含んでもよい。添加剤及び基剤としては、薬学的に許容されることを限度として特に制限されないが、賦形剤、結合剤、崩壊剤、滑沢剤、等張化剤、可塑剤、分散剤、乳化剤、溶解補助剤、湿潤化剤、安定化剤、懸濁化剤、粘着剤、コーティング剤、光沢化剤、水、油脂類、ロウ類、炭化水素類、脂肪酸類、高級アルコール類、エステル類、水溶性高分子、界面活性剤、金属石鹸、低級アルコール類、多価アルコール、pH調整剤、緩衝剤、酸化防止剤、紫外線防止剤、防腐剤、矯味剤、香料、粉体、増粘剤、色素、キレート剤等が挙げられる。これらの添加剤は、1種単独で使用してもよく、また2種以上を組み合わせて使用してもよい。また、これらの添加剤及び基剤の含有量については、使用する添加剤及び基剤の種類、本発明の深部体温改善剤の製剤形態等に応じて適宜設定される。
本発明の過眠症治療剤の製剤形態については、経口投与が可能であることを限度として特に制限されないが、例えば、散剤、細粒剤、顆粒剤、錠剤、トローチ剤、チュアブル剤、カプセル剤(軟カプセル剤、硬カプセル剤)、丸剤等の固形状製剤;ゼリー剤等の半固形状製剤;液剤、懸濁剤、シロップ剤等の液状製剤が挙げられる。これらの製剤形態の中でも、含有成分の安定性や携帯性等の観点から、好ましくは固形状製剤、より好ましくは錠剤が挙げられる。
本発明の過眠症治療剤の製造方法は、上記加味逍遙散エキスと、必要に応じて配合されるその他の成分とを用いて、医薬分野で採用されている通常の製剤化手法に従って製剤化すればよい。
本発明の過眠症治療剤は、過眠症の症状を改善する目的で用いられる。過眠症は、日中の過剰な眠気又は実際に眠り込むことが日常的に繰り返される状態を主症状とする睡眠障害疾患であればよい。本発明の過眠症治療剤は、通常、不眠症を伴わない過眠症に対して用いられる。具体的には、本発明の過眠症治療剤は、反復性過眠症、特発性過眠症、月経前過眠症等に対して用いられる。
本発明の過眠症治療剤は、経口投与によって使用される。本発明の過眠症治療剤の用量については、投与対象者の年齢、性別、体質、症状の程度等に応じて適宜設定されるが、例えば、ヒト1人に対して1日当たり、加味逍遙散エキスの全生薬成分の原生薬換算量として5~30g、好ましくは10~25g、加味逍遙散エキス量(乾燥重量)として1000~3000mg、好ましくは1400~2500mg、より好ましくは1600~2300mgとなる量で、1日1~4回、好ましくは2~3回の頻度で服用すればよい。服用タイミングについては、特に制限されず、食前、食後、又は食間のいずれであってもよいが、好ましくは食前又は食間が挙げられる。本発明の過眠症治療剤は、3日以上、好ましくは5日以上継続して服用することが好ましい。
(1)過眠症治療剤の調製
表1に示す成分及び配合量の生薬組成物に、重量比で10倍量の水を抽出溶媒として加えて、約100℃で30分撹拌しながら抽出を行った。その後、遠心分離にて抽出液を回収し、減圧濃縮した後に、スプレードライヤーを用いて乾燥させることによって、加味逍遙散エキスを調製した。得られた加味逍遙散エキスを用い、表2に示す組成で錠剤組成物を調製し、打錠して過眠症治療剤の錠剤(360mg/錠)を得た。
20~40歳の、不眠症を伴わない過眠症の被験者11人を対象とし、過眠症治療剤の錠剤を1回4錠、1日に2回、5日間、食前又は食間に服用させた。なお、被験者は、服用前日から服用完了まで、夜間には十分な睡眠をとった。
服用完了の翌日における日中の眠気に対する改善効果を、以下の基準に基づいて5段階評価を行った。
5点:改善効果を感じた
4点:どちらかといえば改善効果を感じた
3点:どちらともいえない
2点:どちらかといえば改善効果を感じなかった。
1点:改善効果を感じなかった
Claims (3)
- 加味逍遙散エキスを含む過眠症治療剤。
- 前記加味逍遙散エキスが、トウキ、シャクヤク、ジュツ、ブクリョウ、サイコ、ボタンピ、サンシシ、カンゾウ、ショウキョウ、及びハッカの混合物の抽出エキスである、請求項1に記載の過眠症治療剤。
- 不眠症を伴わない過眠症に対して用いられる、請求項1又は2に記載の過眠症治療剤。
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Non-Patent Citations (5)
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おすすめ漢方:月経前症候群と漢方薬,医療法人財団北聖会,2015年,[online],<https://www.hokusei-hospi.jp/new/post_85.html>,[令和4年9月26日検索] |
ツムラ漢方加味逍遙散エキス錠A,添付文書,株式会社ツムラ |
川口恵子,月経前症候群に対する加味逍遙散を中心にした漢方療法,日東医誌,2005年,vol.51,No.1,109-114 |
月経前症候群(premenstrual syndrome : PMS),産科・婦人科の病気,日本産科婦人科学会,2018年06月,[online],<https://www.jsog.or.jp/modules/diseases/index.php?content_id=13>,[令和4年9月26日検索] |
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