TWI488658B - 溶出性之改善方法 - Google Patents
溶出性之改善方法 Download PDFInfo
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- TWI488658B TWI488658B TW096149678A TW96149678A TWI488658B TW I488658 B TWI488658 B TW I488658B TW 096149678 A TW096149678 A TW 096149678A TW 96149678 A TW96149678 A TW 96149678A TW I488658 B TWI488658 B TW I488658B
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- layer
- acid
- ingot
- olmesartan medoxomil
- adipine
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- 238000010828 elution Methods 0.000 title description 3
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Description
本發明係關於含有奧美沙坦酯(olmesartan medoxomil)及阿折地平(azelnidipine)之固形製劑之溶出性改善方法。
現今,廣泛使用血管收縮素II受體拮抗劑及鈣離子通道拮抗劑作為高血壓症或心臟病等治療或預防用之醫藥。為腎素-血管收縮素系之抑制藥的血管收縮素II受體拮抗劑對腎素依賴性之高血壓症特別有效,顯示出對於心血管或腎臟障礙之保護作用。又,由於鈣離子通道拮抗劑除了具有血管擴張作用外又具有鈉利尿作用,對於體液儲存性(腎素非依賴性)之高血壓症亦有效。因此,若併用血管收縮素Ⅱ受體拮抗劑與鈣離子通道拮抗劑,由於除了有來自血管收縮素II受體拮抗劑之腎素-血管收縮素系之抑制效果外,加上來自鈣離子通道拮抗劑之血管平滑肌的鈣離子通道拮抗作用及二次性鈉排泄作用,同時抑制複數種高血壓成因成為可能,而期待顯示不管病因為何之安定且充分的高血壓症之治療或預防效果。
(5-甲基-2-酮基-1,3-二氧戊環-4-基)甲基4-(1-羥基-1-甲基乙基)-2-丙基-1-[2'-(1H-四唑-5-基)聯苯基-4-基甲基]咪唑-5-羧酸酯(以下,稱為奧美沙坦酯)為優異的血管收縮素II受體拮抗劑,已知作為高血壓症及心臟病等治療或預防用之醫藥為有用的(日本專利第2082519號公報、
美國專利第5,616,599號公報)。
奧美沙坦酯已有以Olmetec®(註冊商標)錠被販售,含有有效成分奧美沙坦酯5mg、10mg、20mg或40mg,及含有作為添加物之低取代度羥丙基纖維素、羥丙基纖維素、結晶纖維素、乳糖、硬脂酸鎂。
又,(±)-2-胺基-1,4-二氫-6-甲基-4-(3-硝基苯基)-3,5-吡啶二羧酸3-(1-二苯基甲基吖丁啶-3-基)酯5-異丙基酯(以下稱為阿折地平),為優異的鈣離子通道拮抗劑,已知作為高血壓症及心臟病等治療或預防用之醫藥為有用的(日本專利第1666755號公報、美國專利第4,772,596號公報)。
阿折地平已有以Calblock®(註冊商標)錠被販售,含
有有效成分阿折地平8mg或16mg,及含有作為添加物之D-甘露糖醇、羧甲基纖維素鈣、低取代度羥丙基纖維素、碳酸氫鈉、聚山梨酸酯80、偏矽酸鋁酸鎂、輕質矽酸酐、羥丙基纖維素、滑石、硬脂酸鎂。
於先前技術中,組合奧美沙坦酯及阿折地平之醫藥為已知(國際公開第2004/067003號小冊),但並未知悉本發明之含有奧美沙坦酯及阿折地平之固形製劑之溶出性改善方法。
專利文獻1:日本專利第2082519號公報(美國專利第5,616,599號公報)
專利文獻2:日本專利第1666755號公報(美國專利第4,772,596號公報)
專利文獻3:國際公開第2004/067003號小冊。
本發明之課題係提供含有奧美沙坦酯及阿折地平之固形製劑之溶出性改善方法。
近年來,高血壓患者有併用含合併症治療之藥劑的複數種藥劑的傾向,此被指摘為成為血壓控制不良之一個原因的可能性。由於一旦服用的藥劑數多,服藥順從性會降低,為了實現確實的血壓控制,認為企求患者服藥順從性之提升為重要的。血管收縮素II受體拮抗劑之奧美沙坦酯與鈣離子通道拮抗劑之阿折地平,由於可期待有更確實的高血壓治療效果之組合而於醫療場所中被廣泛併用,為使
患者之服藥順從性提升,強烈地冀望兩藥劑之調配劑之開發。
一般而言開發含有2種類藥劑之固形製劑(調配劑)時,經常於任一方單劑之處方上,再追加另一方有效成分的處方或使用二層錠者。然而,含有奧美沙坦酯及阿折地平的固形製劑中,Olmetec®(註冊商標)錠、Calblock®(註冊商標)錠之處方作為基礎的場合,已知隨著時間奧美沙坦酯之溶出性會變低。
本發明者們為解決上述課題致力研究的結果,發現經由將製劑中各別有效成分分離調配,又將對兩主藥為不活性的層夾入成為三層錠,使隨時間之奧美沙坦酯溶出性的降低被改善,遂而完成本發明。
本發明為提供含有奧美沙坦酯及阿折地平之固形製劑(特別是高血壓症之預防或治療用製劑)之奧美沙坦酯之溶出性改善方法、製造前述固形製劑(特別是高血壓症之預防或治療用製劑)用之奧美沙坦酯及阿折地平之使用、將含有奧美沙坦酯及阿折地平之藥理學上有效量之前述固形製劑投與溫血動物(特別是人類)之預防或治療疾病(特別是高血壓症)的方法。
亦即,本發明提供:(1)一種固形製劑之溶出性改善方法,其含有奧美沙坦酯及阿折地平;(2)(1)中記載之方法,其特徵為奧美沙坦酯及
阿折地平以互不接觸的方式分離調配;(3)(1)或(2)中記載之方法,其中固形製劑為錠劑之形態;(4)(3)中記載之方法,其中錠劑為多層錠;(5)(4)中記載之方法,其中多層錠為三層錠,第1層含有奧美沙坦酯,夾著中間層的另一層含有阿折地平;(6)(4)中記載之方法,多層錠為由內核與中間層與外層構成的有核錠,其中內核含有奧美沙坦酯,外層含有阿折地平;(7)(4)中記載之方法,多層錠為內核、中間層、外層構成的有核錠,其中內核含有阿折地平,外層含有奧美沙坦酯;(8)(5)至(7)中任一項記載之方法,其中中間層含有賦形劑;(9)(8)中記載之方法,其中賦形劑為選自乳糖、結晶纖維素、輕質矽酸酐組成之群之1或2種以上;(10)(1)至(9)中任一項記載之方法,其係用於改善奧美沙坦酯之溶出性;(11)(1)至(10)中任一項記載之方法,其係用於治療或預防高血壓症等。
依據本發明,提供含有奧美沙坦酯及阿折地平之固形製劑之溶出性改善方法成為可能。
本發明之固形製劑之有效成分為奧美沙坦酯與阿折地平。
本發明之固形製劑中有效成分之一的奧美沙坦酯可依據日本專利第2082519號公報(美國專利第5,616,599號公報)等記載之方法而容易地製造。
本發明之固形製劑中有效成分之一者的阿折地平可依據日本專利第1666755號公報(美國專利第4,772,596號公報)等記載之方法容易地製造。阿折地平可形成酸加成鹽,此等酸加成鹽亦包含於本發明。阿折地平之酸加成鹽之酸部分,只要可與阿折地平形成酸加成鹽的酸者即可未特別限定,作為如此之酸,可列舉例如鹽酸、氫溴酸、氫碘酸、硫酸、硝酸、磷酸、乙酸、草酸、丙二酸、富馬酸、馬來酸、酒石酸、琥珀酸、檸檬酸、甲磺酸、苯磺酸、對甲苯磺酸、或萘磺酸,較佳為鹽酸、氫溴酸、硫酸、磷酸、富馬酸、酒石酸、檸檬酸、甲磺酸、苯磺酸、對甲苯磺酸、或萘磺酸,更佳為氫溴酸、檸檬酸、甲磺酸、苯磺酸、對甲苯磺酸、或萘磺酸,再更佳為氫溴酸、甲磺酸、或對甲苯磺酸,又更佳為氫溴酸或甲磺酸,最佳為氫溴酸。
本發明中所謂「溶出性改善」,係指於安定性試驗(60℃及/或40℃75%相對濕度、及/或25℃60%相對濕度)改善固形製劑中奧美沙坦酯溶出性之降低現象,較佳為安定性試驗後,檢體之溶出試驗中奧美沙坦酯之30分鐘後之溶出率
為75%以上,較佳為80%以上,更佳為85%以上。
本發明之固形製劑之溶出性,依據日局一般試驗法之溶出試驗法第2法(槳攪法(paddle method))測定。例如,漿攪回轉數每分鐘75次回轉,使用日局第2液(JP-2、pH6.8)900mL作為試驗液,經由採取試驗開始30分鐘後之試驗液,使用0.45μm孔徑之膜過濾器過濾,濾液使用高速液體色層分析定量,可算出奧美沙坦酯之溶出率。
作為本發明之「固形製劑」,可列舉例如錠劑(含舌下錠、口腔內崩壞錠)、膠囊劑(含軟膠囊、微膠囊)、顆粒劑、細粒劑、散劑、丸劑、舌片劑等,較佳為錠劑。
本發明中所謂之「多層錠」,係指數種類處方成分分階段以層狀堆積而壓縮成形,納入同一劑形內之錠劑(積層錠),較佳為具有兩主藥以含有不活性的添加劑之中間層分離的奧美沙坦酯層及阿折地平層之三層所構成的錠劑。再者,奧美沙坦酯層及/或阿折地平層之外側上可有追加之層。此等追加的層可為美觀的目的,亦可為藥劑味遮蔽、含有其他有效成分之目的。
本發明中所謂之「三層錠」,為含有一方之有效成分的第1層、含有不活性的添加劑之第2層(中間層)及含有另一方有效成分之第3層所構成的積層錠。藉由中間層可迴避藥物間之直接接觸,而改善溶出性。
本發明中所謂之「有核錠」,為以含有另一方藥物之外層包覆含有一方之藥物的內核之錠劑,該內核與外層可相接,又作為回避藥物間之直接接觸的目的,可設置以高分
子或糖被覆該內核之中間層。
作為中間層中使用的不活性添加劑,只要與有效成分不反應之添加劑即可未特別限定,可列舉作為通常賦形劑使用之添加劑等。作為如此之添加劑,可列舉例如乳糖、乳糖(造粒粉末)、白糖、葡萄糖、甘露糖醇或山梨糖醇等糖衍生物;玉米澱粉、馬鈴薯澱粉、α-澱粉或糊精等之澱粉衍生物;結晶纖維素、結晶纖維素與輕質矽酸酐之噴霧乾燥品等纖維素衍生物;阿拉伯膠;葡聚糖;或三聚葡糖等有機系賦形劑;或,輕質矽酸酐、合成矽酸鋁、矽酸鈣或偏矽酸鋁酸鎂等矽酸鹽衍生物;磷酸氫鈣等磷酸鹽;碳酸鈣等碳酸鹽;或,硫酸鈣等硫酸鹽等之無機系賦形劑,較佳為乳糖(造粒粉末)、結晶纖維素與輕質矽酸酐之噴霧乾燥品、D-甘露糖醇、偏矽酸鋁酸鎂、輕質矽酸酐,更佳為結晶纖維素與輕質矽酸酐之噴霧乾燥品。又,中間層可使用潤滑劑。作為潤滑劑,可列舉例如硬脂酸鎂、硬脂酸鈣、富馬酸硬脂酸鈉等硬脂酸衍生物;滑石等礦物資源;蔗糖脂肪酸酯等脂肪酸衍生物,較佳為硬脂酸鎂。
本發明之固形製劑,又視必要,可含有適宜之藥理學上容許之賦形劑、潤滑劑、結合劑、崩壞劑、乳化劑、安定劑、矯味矯臭劑、稀釋劑等添加劑。
作為使用之「賦形劑」,可列舉例如乳糖、白糖、葡萄糖、甘露糖醇或山梨糖醇等之糖衍生物;玉米澱粉、馬鈴薯澱粉、α-澱粉或糊精等之澱粉衍生物;結晶纖維素等之纖維素衍生物;阿拉伯膠;葡聚糖;或三聚葡糖等之有機
系賦形劑;或輕質矽酸酐、合成矽酸鋁、矽酸鈣或偏矽酸鋁酸鎂等之矽酸鹽衍生物;磷酸氫鈣等之磷酸鹽;碳酸鈣等之碳酸鹽;或硫酸鈣等之硫酸鹽等之無機系賦形劑。
作為使用之「潤滑劑」,可列舉例如為硬脂酸;硬脂酸鈣或硬脂酸鎂等之硬脂酸金屬鹽;滑石;膠狀矽石;蜂蠟或鯨蠟等之蠟類;硼酸;己二酸;硫酸鈉等之硫酸鹽;乙二醇;富馬酸;苯甲酸鈉;D,L-白胺酸;十二基硫酸鈉或十二基硫酸鎂等之十二基硫酸鹽;矽酸酐或矽酸水和物等之矽酸類;或,上述澱粉衍生物。
作為使用之「結合劑」,可列舉例如為羥丙基纖維素、羥丙基甲基纖維素、聚乙烯吡咯啶酮、聚乙二醇(macrogol),或與前述賦形劑相同之化合物。
作為使用之「崩壞劑」,可列舉例如低取代度羥丙基纖維素、羧甲基纖維素、羧甲基纖維素鈣或內部交聯羧甲基纖維素鈉等之纖維素衍生物;交聯聚乙烯吡咯啶酮;或、羧甲基澱粉或羧甲基澱粉鈉等之經化學修飾的澱粉‧纖維素類。
作為使用的「乳化劑」,可列舉例如膨土或VEEGUM®等之膠性黏土;氫氧化鎂或氫氧化鋁等之金屬氫氧化物;十二基硫酸鈉或硬脂酸鈣等之陰離子界面活性劑;氯化芐烷銨等之陽離子界面活性劑;或,聚氧乙烯烷基醚、聚氧乙烯山梨聚糖脂肪酸酯或蔗糖脂肪酸酯等之非離子界面活性劑。
作為使用的「安定劑」可列舉例如對羥苯甲酸甲酯或
對羥苯甲酸丙酯等之對羥苯甲酸酯類;氯丁醇、苄醇或苯乙醇等之醇類;氯化芐烷銨;苯酚或甲酚等之酚類;硫柳汞;去氫乙酸;或山梨酸等。
作為使用的「矯味矯臭劑」,可列舉例如糖精鈉或阿斯巴甜等之甘味料;檸檬酸、蘋果酸或酒石酸等之酸味料;或薄荷腦、檸檬、或橘子等之香料等。
作為使用的「稀釋劑」,可列舉例如乳糖、甘露糖醇、葡萄糖、蔗糖、硫酸鈣、磷酸鈣、羥丙基纖維素、微結晶性纖維素、水、乙醇、聚乙二醇、丙二醇、甘油、澱粉、聚乙烯吡咯啶酮、偏矽酸鋁酸鎂或此等之混合物。
本發明中製劑之製造方法可使用Powder Technology and Pharmaceutical Processes(D. Chulia等人,Elsevier Science Pub. Co (December l, 1993))等刊物中記載之一般方法製造,並未特別設限。
本發明之多層錠,例如可以本身公知之方法,將含有效成分之各層直接壓縮成形,或有效成分各自於各層依通常之濕式顆粒化或乾式顆粒化(壓縮)方法製造,接著,藉由將各層壓縮成形而製造。
本發明之三層錠,例如可以本身公知之方法,各自將第1層、第2層(中間層)、第3層藉由使用通常之直接打錠用顆粒或濕式顆粒化或乾式顆粒化(壓縮)方法製造,接著,壓縮第1層、第2層、第3層,使用通常之三層錠成形裝置使各層結合而製造。又,本發明之三層錠可設置至少1層的膜包衣。
本發明之有核錠,例如可以本身公知之方法作成內核部之內核錠,接著,使用有核打錠機將該內核錠以外層部被覆而製造。又,上述內核錠(內核)可於以外層被覆之前,施予薄膜包衣。又,上述內核錠可為1製劑中有1個內核錠,亦可有複數個。又,本發明之有核錠可設置至少1層之膜包衣。
包衣,例如使用膜包衣裝置進行,作為膜包衣基劑,可列舉例如糖衣基劑、水溶性膜包衣基劑、腸溶性膜包衣基劑、緩放性膜包衣基劑等。
作為糖衣基劑,使用白糖,又,亦可組合選自滑石、沈降碳酸鈣、磷酸鈣、硫酸鈣、明膠、阿拉伯膠、聚乙烯吡咯啶酮、三聚葡糖等1種或2種以上使用。
作為水溶性膜包衣基劑,可列舉例如羥丙基纖維素、羥丙基甲基纖維素、羥乙基纖維素、甲基羥乙基纖維素、羧甲基纖維素鈉等之纖維素衍生物;聚乙烯醇、聚乙烯醇-聚乙二醇接枝共聚物、聚乙烯醇-丙烯酸-甲基丙烯酸甲酯共聚物、聚乙烯縮醛二乙胺乙酸酯、胺基烷基甲基丙烯酸酯共聚物、聚乙烯吡咯啶酮、聚乙二醇等之合成高分子;三聚葡糖等之多糖類等。
作為腸溶性膜包衣基劑,可列舉例如羥丙基甲基纖維素酞酸酯、羥丙基甲基纖維素乙酸丁二酸酯、羧甲基乙基纖維素、乙酸酞酸纖維素等之纖維素衍生物;甲基丙烯酸共聚物L、甲基丙烯酸共聚物LD、甲基丙烯酸共聚物S等之丙烯酸衍生物;蟲膠等之天然物等。
作為緩放性膜包衣基劑,可列舉例如乙基纖維素等之纖維素衍生物;胺基烷基甲基丙烯酸酯共聚物RS、丙烯酸乙酯‧甲基丙烯酸甲酯‧共聚物乳濁液等之丙烯酸衍生物等。
上述包衣基劑可將其2種以上以適當比例混合使用。又,更必要時,可含有適宜之藥理學上容許之可塑劑、賦形劑、潤滑劑、隱蔽劑、著色劑、防腐劑等之添加劑。
本發明之固形製劑之有效成分之奧美沙坦酯與阿折地平之投與量與投與比率,可依個別藥劑之活性、患者之症狀、年齡、體重等種種條件變化。其投與量依症狀、年齡等而不同,經口投與時,視症狀成人每日的奧美沙坦酯5mg-80mg(較佳為10mg-40mg)、阿折地平8mg-32mg(較佳為8mg-16mg)可以一日1至6次(較佳為一日1次)投與。
又,本發明固形製劑之有效成分之奧美沙坦酯與阿折地平之投與量之比率亦為大幅變動,例如奧美沙坦酯與阿折地平之投與量比率,重量比可為1:50至50:1之範圍內,較佳為1:5至5:1。最佳形態為含有奧美沙坦酯/阿折地平為20mg/16mg或10mg/8mg之錠劑。
本發明之固形製劑,例如有效於預防或治療高血壓症或來自高血壓症之疾病(更具體而言,為高血壓症、心臟疾病[狹心症、心肌梗塞、心率不整、心衰竭或心肥大]、腎臟疾病[糖尿病性腎症、絲球體腎炎或腎硬化症]或腦血管性疾病[腦梗塞或腦出血])等。
以下,以實施例等更詳細說明本發明,但本發明不受此限定。
使用以下表1所示成分之彼等量,製作混合顆粒1。奧美沙坦酯、低取代度羥丙基纖維素、羥丙基纖維素、乳糖以高速攪拌造粒機(VG-10,Powrex,約2kg規模)混合5分鐘後,注加純水攪拌3分鐘,造粒。所得造粒物使用篩粉機(screening mill)(Fiore,德壽工作所,裝置10mm角之孔徑篩)製成顆粒,於入風溫度90℃之流動層乾燥機(Glatt WST-5,Powrex)中乾燥後,於篩粉機(COMIL 197S,Powrex,裝置1.143mm之網眼)中整粒,獲得顆粒1。以表1所示比例量秤顆粒1、結晶纖維素及硬脂酸鎂,使用V型混合機混合獲得混合顆粒1。
其次,依以下表2所示成分使用彼等量,製作混合顆粒2。各量秤1:1(重量比)之阿折地平與D-甘露糖醇,以高速攪拌造粒機(亨舍爾攪拌機(Henschel Mixer)FM-20,三井三池製作所)混合5分鐘後,使混合物於錘片式粉碎機(Hammer mill)(Sample mill KII WG-l,不二Paudal)中粉碎。又,偏矽酸鋁酸鎂、輕質矽酸酐以高速攪拌造粒機(亨舍爾攪拌機FM20,三井三池製作所)混合後,於此混合物中注加聚山梨酸酯80,獲得聚山梨酸酯80吸附粉末。所得阿折地平粉碎品、聚山梨酸酯80吸附粉末、D-甘露糖醇、羧甲基纖維素鈣、低取代度羥丙基纖維素、碳酸氫鈉、輕質矽酸酐於高速攪拌造粒機(VG-10,Powrex,約2kg規
模)中混合,加入羥丙基纖維素之水溶液(固形分濃度6.5%)於高速攪拌造粒機(VG-10,Powrex)中進行7.5分鐘造粒。所得練合物以篩粉機(旋風粉碎機(Tornado Mill),F. J. Stokes Corp.,裝置10mm角之孔徑篩)製成顆粒,於入風溫度90℃之流動層乾燥機(Glatt WST-5,Powrex)中乾燥後,於篩粉機(旋風粉碎機,F. J. Stokes Corp.,裝置1.143mm之網孔)中將顆粒整粒,獲得顆粒2。顆粒2、偏矽酸鋁酸鎂、輕質矽酸酐、滑石、硬脂酸鎂以表2所示比例量秤,使用V型混合機(德壽工作所)混合而獲得混合顆粒2。
其次以表3所示配方,量秤乳糖(造粒粉末)、硬脂酸鎂,於V型混合機(德壽工作所)中混合10分鐘而獲得混合顆粒3。
接著,以260mg混合顆粒2於第1層中、100mg混合顆粒3於第2層中、120mg混合顆粒1於第3層中而成的方式充填調整,於旋轉打錠機中使用長徑15mm、短徑7.3mm之異型杵,以2.5噸之壓縮壓成形打錠,獲得錠劑1。
評價所得錠劑1於60℃之安定性試驗開始時、1週後、2週後之溶出性(30分鐘後之奧美沙坦酯溶出率),結果示於表4。
將實施例1所示製法獲得之260mg混合顆粒2於第1層、120mg混合顆粒1於第2層的方式充填調整,於旋轉打錠機中以長徑15mm、短徑7.3mm之異型杵,以2.5噸之壓縮壓成形
打錠,獲得錠劑2。評價所得錠劑2於60℃之安定性試驗開始時、1週後、2週後之溶出性(30分鐘後之奧美沙坦酯溶出率),結果示於表4。
如表3所示處方,量秤結晶纖維素‧輕質矽酸酐噴霧乾燥品、硬脂酸鎂,於V型混合機(德壽工作所)中混合10分鐘而獲得混合顆粒4。
將實施例1所示260mg混合顆粒2於第1層,100mg混合顆粒4於第2層,120mg混合顆粒1於第3層的方式充填調整,於旋轉打錠機中使用長徑15mm、短徑7.3mm之異型杵,以2.5噸之壓縮壓成形打錠,獲得錠劑3。
評價所得錠劑3於60℃之安定性試驗開始時、1週後、2週後之溶出性(30分鐘後之奧美沙坦酯溶出率),結果示於表4。
依表3所示處方,量秤乳糖(造粒粉末)、低取代度羥丙基纖維素、羥丙基纖維素、結晶纖維素、硬脂酸鎂,於V型混合機(德壽工作所)中混合10分鐘而獲得混合顆粒5。
將實施例1所示260mg混合顆粒2於第1層、100mg混合顆粒5於第2層、120mg混合顆粒1於第3層的方式充填調整,於旋轉打錠機中使用長徑15mm、短徑7.3mm之異型杵,以2.5噸之壓縮壓成形打錠,獲得錠劑4。
評價所得錠劑4於60℃之安定性試驗開始時、1週後、2週後之溶出性(30分鐘後之奧美沙坦酯溶出率),結果示於
表4。
依據日本藥局方第14改正之項中記載的溶出試驗法第2法(槳攪法),每分鐘75次回轉,使用日局第2液(JP-2)900mL作為試驗液,進行試驗。採取試驗開始30分鐘後之試驗液,使用0.45μm孔徑之膜過濾器過濾,濾液使用高速液體色層分析定量,而算出奧美沙坦酯之溶出率(Varian:溶出試驗器;Agilent technoloies:高速液體色層分析)。
試驗進行3錠,以其平均值表示。
由表4可知,本發明之固形製劑改善奧美沙坦酯之溶出性。
依據本發明可改善含有奧美沙坦酯及阿折地平之固形
製劑之溶出性。
Claims (5)
- 一種固形製劑之溶出性改善方法,其含有奧美沙坦酯(olmesartan medoxomil)及阿折地平(azelnidipine);其中,奧美沙坦酯及阿折地平以互不接觸的方式分離調配;固形製劑為錠劑之形態;該錠劑為多層錠;且該多層錠為三層錠,第1層含有奧美沙坦酯,夾著含有賦形劑之中間層的另一層含有阿折地平。
- 如申請專利範圍第1項之方法,其多層錠為由內核、中間層與外層構成的有核錠,其中內核含有奧美沙坦酯,外層含有阿折地平。
- 如申請專利範圍第1項之方法,其多層錠為內核、中間層、與外層構成的有核錠,其中內核含有阿折地平,外層含有奧美沙坦酯。
- 如申請專利範圍第1至3項中任一項之方法,其中賦形劑為選自乳糖、結晶纖維素、輕質矽酸酐組成之群之1或2種以上。
- 如申請專利範圍第1至3項中任一項之方法,其係用於改善奧美沙坦酯之溶出性。
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| JP5824222B2 (ja) * | 2010-03-31 | 2015-11-25 | 第一三共株式会社 | 固形製剤の製造方法 |
| IN2014MN01919A (zh) * | 2012-03-30 | 2015-07-10 | Dae Woong Pharma | |
| JP5871984B2 (ja) * | 2013-04-15 | 2016-03-01 | 株式会社三和化学研究所 | オルメサルタンメドキソミルを含有する医薬組成物 |
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| EP1561458A1 (en) * | 1998-07-28 | 2005-08-10 | Takeda Pharmaceutical Company Limited | Rapidly disintegrable solid preparation |
| US20060034913A1 (en) * | 2004-08-13 | 2006-02-16 | James Gaede | Multiplex drug delivery device |
| WO2006048208A1 (en) * | 2004-11-05 | 2006-05-11 | Boehringer Ingelheim International Gmbh | Bilayer tablet comprising telmisartan and amlodipine |
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| JP2006298764A (ja) * | 2005-04-15 | 2006-11-02 | Sankyo Co Ltd | 高血圧症治療に有用な複合体 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP1561458A1 (en) * | 1998-07-28 | 2005-08-10 | Takeda Pharmaceutical Company Limited | Rapidly disintegrable solid preparation |
| US20060034913A1 (en) * | 2004-08-13 | 2006-02-16 | James Gaede | Multiplex drug delivery device |
| WO2006048208A1 (en) * | 2004-11-05 | 2006-05-11 | Boehringer Ingelheim International Gmbh | Bilayer tablet comprising telmisartan and amlodipine |
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| WO2008078729A1 (ja) | 2008-07-03 |
| KR20090094285A (ko) | 2009-09-04 |
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