JP2008024675A - Liquid composition for internal medicine - Google Patents

Liquid composition for internal medicine Download PDF

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JP2008024675A
JP2008024675A JP2006201467A JP2006201467A JP2008024675A JP 2008024675 A JP2008024675 A JP 2008024675A JP 2006201467 A JP2006201467 A JP 2006201467A JP 2006201467 A JP2006201467 A JP 2006201467A JP 2008024675 A JP2008024675 A JP 2008024675A
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folic acid
liquid composition
internal
mass
present
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Toshiki Usui
俊樹 薄井
Hirotada Ogawa
廣忠 小川
Yasuhiro Shinkawa
泰弘 新川
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Kowa Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid composition for internal medicine comprising folic acid or its salt, a root of Zingiberaceae and water, wherein the temporal reduction of the folic acid content is suppressed. <P>SOLUTION: The liquid composition for internal medicine comprises the folic acid or its salt, the root of Zingiberaceae, valine, leucine and water. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、葉酸又はその塩、ショウキョウ、及び水を含有し、かつ、葉酸の経時的な含量低下が抑制された内服液剤組成物に関する。   The present invention relates to an oral liquid composition containing folic acid or a salt thereof, Tokyo, and water, and in which a decrease in the content of folic acid over time is suppressed.

人体に必要な栄養は、日常的にバランスの良い食事を摂ることで充分な量を摂取できる。しかし、現在では嗜好や生活習慣、社会環境の変化等により食事の内容に偏りが生じ、一部の栄養について摂取量が不充分な人が増加している。特に、女性の社会進出の増加に伴い、ストレスによる自律神経失調症が生じ、貧血や、貧血に伴う冷え症の女性が増加する傾向にある。   Nutrition necessary for the human body can be consumed in a sufficient amount by eating a balanced diet on a daily basis. However, nowadays, the content of meals is biased due to changes in preferences, lifestyle, social environment, etc., and there are an increasing number of people with insufficient intake for some nutrients. In particular, with the increase in women's social advancement, autonomic dysfunction due to stress occurs, and there is a tendency for women with anemia or cold with anemia to increase.

貧血の改善方法としては、例えば鉄の吸収性を向上させる葉酸を摂取することが挙げられ、特に、内服固形製剤と比べて吸収が早く、服用が容易である内服液剤は、貧血の改善剤として非常に有用であると考えられる。しかしながら、葉酸は、水溶液中では不安定化しやすく、例えばpHの影響により経時的にその含量が低下することが知られている。こうした葉酸を含有する水溶液における葉酸の安定性を改善する技術としては、例えば、葉酸にトロメタミンとモノチオグリセロールを配合した注射液(特許文献1)が挙げられる。しかし、モノチオグリセロールは、特異な臭いがすることから内服液剤に配合することは好ましくない。   Examples of methods for improving anemia include ingesting folic acid, which improves iron absorbability.In particular, oral liquids that absorb faster and are easier to take than oral solid preparations are used as anemia-improving agents. It is considered very useful. However, it is known that folic acid is easily destabilized in an aqueous solution, and its content decreases with time due to the influence of pH, for example. As a technique for improving the stability of folic acid in such an aqueous solution containing folic acid, for example, an injection solution (Patent Document 1) in which tromethamine and monothioglycerol are mixed with folic acid can be mentioned. However, since monothioglycerol smells peculiar, it is not preferable to mix it with an internal solution.

一方、冷え症の改善方法としては、例えばショウキョウを摂取することが挙げられる。ショウキョウは、ショウガZingiber officinale Roscoe(Zingiberaceae)の根茎である。ショウキョウの冷え症改善作用に関する技術としては、例えば、ビタミンEと、ニコチン酸誘導体と、ショウキョウを含む生薬及び漢方薬から選ばれる少なくとも1種とを配合してなる末梢循環改善薬製剤(特許文献2)が挙げられる。
特許第3043381号公報 特開2005−289942号公報
On the other hand, as an improvement method of coldness, for example, ingesting ginger can be mentioned. Ginger is the rhizome of ginger Zingiber officinalale Roscoe (Zingiberaceae). As a technique related to the improvement effect of cold on cold, for example, peripheral circulatory remedy preparation comprising vitamin E, nicotinic acid derivative, and at least one selected from herbal medicine and Chinese herbal medicine including Japanese pepper (Patent Document 2) ).
Japanese Patent No. 3043381 Japanese Patent Laid-Open No. 2005-289942

上述した背景の下、本発明者らが貧血、冷え症の改善に有用であり、内服固形製剤と比べて吸収が早く、服用が容易である内服液剤組成物を提供するため、葉酸、ショウキョウ、及び水を含有する内服液剤組成物を開発すべく鋭意研究を行ったところ、pHの影響とは無関係に、内服液剤組成物中でショウキョウと共存している葉酸が、経時的に大きな含量低下を生じることが判明した。
従って本発明の目的は、葉酸、ショウキョウ、及び水を含有し、かつ、葉酸の経時的な含量低下が抑制された内服液剤組成物を提供することにある。
Under the background described above, the present inventors provide an oral liquid composition that is useful for the improvement of anemia and coldness, and is faster to absorb and easier to take than solid oral preparations. As a result of diligent research to develop an internal liquid composition containing water and water, the content of folic acid coexisting with shochu in the internal liquid composition decreased greatly over time, regardless of the effect of pH. Was found to result in
Accordingly, an object of the present invention is to provide an internal liquid composition containing folic acid, Tokyo, and water, and in which a decrease in the content of folic acid over time is suppressed.

上記の課題を解決すべく本発明者らがさらに鋭意研究を行ったところ、葉酸又はその塩、ショウキョウ、及び水を含有する内服液剤組成物に、さらに、α−アミノ酸であるバリン及びロイシンを含有させることにより葉酸の経時的な含量低下を大幅に抑制できることを見出し、本発明を完成した。   As a result of further diligent research conducted by the present inventors to solve the above-mentioned problems, valine and leucine, which are α-amino acids, were further added to the oral solution composition containing folic acid or a salt thereof, pepper, and water. It was found that the content of folic acid over time can be greatly suppressed by the inclusion thereof, and the present invention has been completed.

すなわち本発明は、葉酸又はその塩、ショウキョウ、バリン、ロイシン、及び水を含有する内服液剤組成物を提供するものである。   That is, the present invention provides an internal liquid composition containing folic acid or a salt thereof, Tokyo, valine, leucine, and water.

本発明の内服液剤組成物は葉酸又はその塩、ショウキョウ、及び水を含有する内服液剤組成物に、さらにバリン及びロイシンを組み合わせて配合することにより、バリン又はロイシンそれぞれ単独の配合では得られない相乗効果により、葉酸の経時的な含量低下が抑制された内服液剤組成物である。したがって本発明の内服液剤組成物を長期間保存後に服用しても、貧血及び胎児の先天性疾患の予防といった葉酸の効果が発現される。また本発明の内服液剤組成物は、葉酸又はその塩及びショウキョウを含有することから疲労回復及び冷え症改善作用を有する内服液剤としても有効である。   The internal liquid composition of the present invention cannot be obtained by adding valine or leucine alone to an internal liquid composition containing folic acid or a salt thereof, Tokyo, and water and further combining valine and leucine. It is an internal liquid composition in which a decrease in the content of folic acid over time is suppressed by a synergistic effect. Therefore, even if the oral solution composition of the present invention is taken after long-term storage, the effects of folic acid such as prevention of anemia and congenital diseases of the fetus are expressed. Further, since the internal liquid composition of the present invention contains folic acid or a salt thereof and ginger, it is also effective as an internal liquid that has a recovery from fatigue and a cooling effect.

本発明において、葉酸の塩としては生理学的に許容される塩であれば特に制限されないが、例えば葉酸ナトリウムが挙げられる。本発明の内服液剤組成物における葉酸又はその塩の含量は、薬理効果の点から、内服液剤組成物全質量に対して0.00005〜0.004質量%が好ましく、0.0001〜0.002質量%がより好ましく、0.0003〜0.001質量%が特に好ましい。   In the present invention, the salt of folic acid is not particularly limited as long as it is a physiologically acceptable salt, and examples thereof include sodium folate. The content of folic acid or a salt thereof in the internal use liquid preparation composition of the present invention is preferably 0.00005 to 0.004% by mass, preferably 0.0001 to 0.002 based on the total mass of the internal use liquid preparation composition from the viewpoint of pharmacological effects. % By mass is more preferable, and 0.0003 to 0.001% by mass is particularly preferable.

本発明において、「ショウキョウ」には、ショウガZingiber officinale Roscoe(Zingiberaceae)の根茎そのもののほか、生薬に一般に適用されうる加工処理を施したものも含まれる。本発明におけるショウキョウとしては、例えばショウキョウ、ショウキョウ末、ショウキョウエキス等が挙げられる。ショウキョウは、例えばコルク皮をはぎ、そのまま又は縦に割り石灰をまぶして速やかに乾燥したものや、軽く湯通した後乾燥したものが用いられる。ショウキョウ末とは、ショウキョウを粉末としたものをいう。ショウキョウエキスは、ショウキョウ又はショウキョウ末を水、エタノール等の溶媒で抽出処理したものをいう。本発明の内服液剤組成物におけるショウキョウの含量は、薬理効果の点から、内服液剤組成物全質量に対して、原生薬換算値として、0.1〜20質量%、さらに0.5〜10質量%、特に1〜5質量%含有するのが好ましい。   In the present invention, “shoyu” includes not only the rhizome of ginger Zingiber officinalale Roscoe (Zingiberaceae) but also those subjected to processing generally applicable to herbal medicines. Examples of the show in the present invention include show, show end, show extract and the like. As the show, for example, a cork skin is peeled off, and it is dried as it is or directly by splitting lime vertically, or after being lightly boiled and dried. The end powder is a powder of ground pepper. The ginger extract refers to ginger or ginger powder that has been extracted with a solvent such as water or ethanol. From the viewpoint of pharmacological effect, the content of Tokyo in the internal use liquid composition of the present invention is 0.1 to 20% by mass, and further 0.5 to 10%, in terms of drug substance, relative to the total mass of the internal use liquid composition. It is preferable to contain 1 mass%, especially 1-5 mass%.

本発明において、α−アミノ酸である「バリン」には、L−バリン、D−バリン、及びその混合物のいずれもが含まれるが、本発明においては、L−バリンが好ましい。本発明の内服液剤組成物におけるバリンの含量は、本発明の内服液剤組成物における葉酸の経時的な含量低下の抑制の効果の観点から、内服液剤組成物全質量に対して0.01〜5質量%が好ましく、0.05〜2質量%がより好ましく、0.1〜1質量%が特に好ましい。   In the present invention, “valine” which is an α-amino acid includes any of L-valine, D-valine, and a mixture thereof. In the present invention, L-valine is preferable. The content of valine in the internal liquid composition of the present invention is 0.01 to 5 with respect to the total mass of the internal liquid composition from the viewpoint of the effect of suppressing the decrease in the content of folic acid over time in the internal liquid composition of the present invention. % By mass is preferable, 0.05 to 2% by mass is more preferable, and 0.1 to 1% by mass is particularly preferable.

本発明において、α−アミノ酸である「ロイシン」には、L−ロイシン、D−ロイシン、及びその混合物のいずれもが含まれるが、本発明においては、L−ロイシンが好ましい。本発明におけるロイシンの含量は、本発明の内服液剤組成物における葉酸の経時的な含量低下の抑制の効果の観点から、内服液剤全質量に対して0.01〜5質量%が好ましく、0.05〜2質量%がより好ましく、0.1〜1質量%が特に好ましい。   In the present invention, “leucine” which is an α-amino acid includes any of L-leucine, D-leucine, and a mixture thereof. In the present invention, L-leucine is preferable. The content of leucine in the present invention is preferably 0.01 to 5% by mass with respect to the total mass of the internal liquid preparation, from the viewpoint of the effect of suppressing a decrease in the content of folic acid over time in the internal liquid preparation composition of the present invention. 05-2 mass% is more preferable, and 0.1-1 mass% is especially preferable.

本発明の内服液剤組成物における葉酸又はその塩、ショウキョウ、バリン、及びロイシンの相対質量比率は特に限定されるものではないが、本発明の内服液剤組成物における葉酸の経時的な含量低下の抑制の効果の観点から、内服液剤組成物中の葉酸又はその塩を1質量部とした場合に、ショウキョウ(原生薬換算値)を25〜400000質量部、バリンを2.5〜100000質量部、ロイシンを2.5〜100000質量部とすることが好ましい。   The relative mass ratio of folic acid or a salt thereof, ginger, valine, and leucine in the internal liquid composition of the present invention is not particularly limited, but the content of folic acid in the internal liquid composition of the present invention decreases over time. From the viewpoint of the inhibitory effect, when 1 part by mass of folic acid or a salt thereof in the oral liquid composition is 25 to 400000 parts by mass of the ginger (raw drug substance equivalent value) and 2.5 to 100000 parts by mass of valine. The leucine is preferably 2.5 to 100,000 parts by mass.

本発明の内服液剤組成物における水の含量は内服液剤組成物全質量に対して80〜99.9質量%が好ましく、85〜99.8質量%がより好ましく、90〜99.7質量%が特に好ましい。   The water content in the internal liquid composition of the present invention is preferably 80 to 99.9% by mass, more preferably 85 to 99.8% by mass, and 90 to 99.7% by mass based on the total mass of the internal liquid composition. Particularly preferred.

なお、本発明における「葉酸の経時的な含量低下の抑制」とは、製造後一定期間経過しても内服液剤組成物中の葉酸が分解等により減少する量が少なく、葉酸の含量が保持されていることを意味する。例えば、内服液剤組成物の調製直後から60℃で1ヶ月保存した時の葉酸の残存率は90%以上であるのが望ましいが、本発明はこれに何ら限定されるものではなく、本発明における葉酸の経時的な含量低下の抑制の効果を有する限り、本発明に包含される。   In the present invention, “inhibition of a decrease in folic acid content over time” means that the amount of folic acid in the oral solution composition is reduced by decomposition and the folic acid content is maintained even after a certain period of time has elapsed after production. Means that For example, it is desirable that the residual rate of folic acid is 90% or more when stored at 60 ° C. for one month immediately after the preparation of the oral liquid composition, but the present invention is not limited to this, and the present invention is not limited thereto. As long as it has an effect of suppressing a decrease in the content of folic acid over time, it is included in the present invention.

本発明における内服液剤組成物のpHは、4.5〜7が好ましく、さらに好ましくはpH4.5〜6.5、特にpH5〜6の範囲内であることが好ましい。pH4.5未満では葉酸の含量低下を生じやすくなり、pH7を上回ると味が悪くなる。   The pH of the internal use liquid preparation composition in the present invention is preferably 4.5 to 7, more preferably 4.5 to 6.5, and particularly preferably 5 to 6. If it is less than pH4.5, it will become easy to produce the content fall of folic acid, and if it exceeds pH7, a taste will worsen.

本発明における内服液剤組成物のpH調節には酸又は塩基あるいはそれらの塩を用いることができる。また、これらのうち1種又は2種類以上を組み合わせて用いても良い。酸としては風味等の点から有機酸を用いるのが好ましい。好ましい有機酸としてはクエン酸、リンゴ酸、酒石酸などが挙げられ、クエン酸が特に好ましい。塩基としては水酸化ナトリウム、水酸化カリウム、水酸化カルシウム等が挙げられる。塩としてはクエン酸ナトリウム、リン酸水素ナトリウム、リン酸二水素ナトリウム等が挙げられる。   An acid, a base, or a salt thereof can be used for adjusting the pH of the internal liquid composition in the present invention. Moreover, you may use 1 type or in combination of 2 or more types among these. As the acid, an organic acid is preferably used from the viewpoint of flavor and the like. Preferred organic acids include citric acid, malic acid, tartaric acid and the like, with citric acid being particularly preferred. Examples of the base include sodium hydroxide, potassium hydroxide, calcium hydroxide and the like. Examples of the salt include sodium citrate, sodium hydrogen phosphate, sodium dihydrogen phosphate and the like.

本発明の内服液剤組成物には、葉酸又はその塩、ショウキョウ、バリン、ロイシン、及び水の他にも通常の内服液剤組成物に配合可能な成分、例えばビタミン類、カフェイン類、ミネラル及び添加剤を所望に応じて配合することができる。   In addition to folic acid or a salt thereof, ginger, valine, leucine, and water, the internal use liquid composition of the present invention includes components that can be added to a normal internal use liquid composition, such as vitamins, caffeine, minerals, and the like. Additives can be blended as desired.

ビタミン類としては、ビタミンB1、ビタミンB6、ビタミンB12、ビタミンE、ビタミンP、ニコチン酸アミド、パントテン酸カルシウム、ビオチン及びこれらの誘導体等が挙げられる。
カフェイン類としては、カフェイン、無水カフェイン、安息香酸ナトリウムカフェイン等が挙げられる。
ミネラルとしては、塩化ナトリウム、塩化カルシウム等が挙げられる。
添加剤としては、矯味剤、甘味剤、安定化剤、増粘剤、着色剤、可溶化剤、香料等を例示することができる。
矯味剤としては、例えばポビドン、メントール、グリチルリチン酸二カリウム等が挙げられる。
Examples of vitamins include vitamin B 1 , vitamin B 6 , vitamin B 12 , vitamin E, vitamin P, nicotinic acid amide, calcium pantothenate, biotin, and derivatives thereof.
Examples of caffeine include caffeine, anhydrous caffeine, sodium benzoate caffeine and the like.
Examples of the mineral include sodium chloride and calcium chloride.
Examples of additives include a corrigent, sweetener, stabilizer, thickener, colorant, solubilizer, and fragrance.
Examples of the corrigent include povidone, menthol, dipotassium glycyrrhizinate and the like.

甘味剤としては、ショ糖、果糖、ブドウ糖、乳糖、ソルビトール、マルチトール、エリスリトール、キシリトール、トレハロース、スクラロース、ハチミツ、サッカリン、ステビア抽出物等が挙げられる
安定化剤としては、例えばポビドン、グリセリン、エリソルビン酸及びその塩、エデト酸及びその塩等が挙げられる。
増粘剤としては、例えばカルメロースナトリウム、寒天、ゼラチン、ポビドン、ポリビニルアルコール等が挙げられる。
着色剤としては、例えばタール色素、三二酸化鉄、カラメル等が挙げられる。
Sweeteners include sucrose, fructose, glucose, lactose, sorbitol, maltitol, erythritol, xylitol, trehalose, sucralose, honey, saccharin, stevia extract, etc. Stabilizers include, for example, povidone, glycerin, erythorbine An acid and its salt, an edetic acid, its salt, etc. are mentioned.
Examples of the thickener include carmellose sodium, agar, gelatin, povidone, polyvinyl alcohol and the like.
Examples of the colorant include tar pigments, iron sesquioxide, and caramel.

可溶化剤としては、例えばポリオキシエチレン硬化ヒマシ油、ショ糖脂肪酸エステル、グリセリン脂肪酸エステル等の非イオン系界面活性剤、レシチン、ポビドン等が挙げられる。
香料としては、例えばアップルティーフレーバー、アプリコットティーフレーバー、ローズティーフレーバー、コウチャフレーバー、アップルフレーバー、パイナップルフレーバー等が挙げられる。
Examples of the solubilizer include nonionic surfactants such as polyoxyethylene hydrogenated castor oil, sucrose fatty acid ester, glycerin fatty acid ester, lecithin, povidone and the like.
Examples of the fragrance include apple tea flavor, apricot tea flavor, rose tea flavor, kocha flavor, apple flavor, pineapple flavor and the like.

本発明の内服液剤組成物は通常の方法で製造することが可能であり、製造方法は特に限定されない。例えば、ショウキョウ、バリン、ロイシン及びその他の原料を適量の精製水で溶解させる。続いて該溶液をpH4.5〜7に調節した後、葉酸又はその塩を溶解させた上で必要に応じてpHを調節する。残りの精製水を加えて該溶液の容量調整を行い、必要に応じて濾過、加熱殺菌処理することにより目的の内服液剤組成物が得られる。   The internal liquid composition of the present invention can be produced by a usual method, and the production method is not particularly limited. For example, ginger, valine, leucine and other raw materials are dissolved in an appropriate amount of purified water. Then, after adjusting this solution to pH 4.5-7, after dissolving folic acid or its salt, pH is adjusted as needed. The remaining purified water is added to adjust the volume of the solution, and if necessary, filtration and heat sterilization treatment are performed to obtain the intended oral solution composition.

次に参考例、実施例及び比較例を挙げて本発明を詳細に説明するが、本発明はこれらに限定されるものではない。   Next, although a reference example, an Example, and a comparative example are given and this invention is demonstrated in detail, this invention is not limited to these.

参考例1
精製水20mLに、ショウキョウ(ショウキョウエキス・日本粉末製)73mg(原生薬換算値750mg)、クエン酸300mgを加え、攪拌溶解した。これに水酸化ナトリウムを加えpH6に調節し、葉酸(葉酸・ロシュビタミン製)0.2mgを加え、攪拌溶解した。さらに精製水(常温)適量を加えて全量30mLとして内服液剤を製造した。
Reference example 1
To 20 mL of purified water were added 73 mg of Shokyo (Chrysanthemum extract, manufactured by Nippon Powder Co., Ltd.) (crude drug equivalent value 750 mg) and 300 mg of citric acid, and dissolved by stirring. Sodium hydroxide was added to this to adjust the pH to 6, 0.2 mg of folic acid (folic acid / Roche vitamin) was added and dissolved by stirring. Further, an appropriate amount of purified water (room temperature) was added to make a total volume of 30 mL to produce an internal liquid.

参考例2
精製水20mLに、クエン酸300mgを加え、攪拌溶解した。これに水酸化ナトリウムを加えpH6に調節し、葉酸(葉酸・ロシュビタミン製)0.2mgを加え、攪拌溶解した。さらに精製水(常温)適量を加えて全量30mLとして内服液剤を製造した。
Reference example 2
To 20 mL of purified water, 300 mg of citric acid was added and dissolved by stirring. Sodium hydroxide was added to this to adjust the pH to 6, 0.2 mg of folic acid (folic acid / Roche vitamin) was added and dissolved by stirring. Further, an appropriate amount of purified water (room temperature) was added to make a total volume of 30 mL to produce an internal liquid.

試験例1
参考例1、2で得られた内服液剤を60℃で1ヶ月間暗所保存した後、各内服液剤の葉酸含量をHPLC法により測定した。60℃、1ヶ月間保存後の各内服液剤の葉酸含量の、各内服液剤の調製直後における葉酸含量に対する残存率として算出したものを表1に示す。
Test example 1
The internal liquid preparations obtained in Reference Examples 1 and 2 were stored in the dark at 60 ° C. for 1 month, and then the folic acid content of each internal liquid preparation was measured by HPLC. Table 1 shows the folic acid content of each internal solution after storage at 60 ° C. for 1 month, calculated as the residual ratio with respect to the folic acid content immediately after the preparation of each internal solution.

Figure 2008024675
Figure 2008024675

ショウキョウを配合しない内服液剤(参考例2)においては、60℃1ヶ月の葉酸残存率は約97%であり、経時的な残存率の低下はほぼ認められなかった。しかし、葉酸とショウキョウを配合した内服液剤(参考例1)では、60℃1ヶ月の葉酸残存率はpHの変動がほとんどないにもかかわらず87%であり、経時的な残存率の低下を認めた。なお、いずれの内服液剤も製造直後及び60℃1ヶ月のpHに変化は認められなかった。この結果から、ショウキョウの配合により、pHの影響とは無関係に葉酸残存率が大幅に低下することが判明した。   In the internal use liquid preparation (Reference Example 2) containing no ginger, the residual rate of folic acid for 1 month at 60 ° C. was about 97%, and almost no decrease in the residual rate over time was observed. However, in the oral solution (Reference Example 1) containing folic acid and ginger, the residual rate of folic acid for 1 month at 60 ° C is 87% even though there is almost no change in pH. Admitted. In addition, no change was observed in the pH immediately after production and at 60 ° C. for one month in any of the internal use liquid preparations. From these results, it was found that the residual ratio of folic acid was significantly reduced by the blending of shochu regardless of the effect of pH.

実施例1
精製水20mLに、ショウキョウ(ショウキョウエキス・日本粉末製)73mg(原生薬換算値750mg)、バリン(L−バリン・協和醗酵製)80mg、ロイシン(L−ロイシン・協和醗酵製)240mg、クエン酸300mgを加え、攪拌溶解した。これに水酸化ナトリウムを加えpH6に調節し、葉酸(葉酸・ロシュビタミン製)0.2mgを加え、攪拌溶解した。さらに精製水(常温)適量を加えて全量30mLとして内服液剤を製造した。
Example 1
In 20 mL of purified water, 73 mg of Pepper (Chrysanthemum extract, made in Japan powder) (750 mg of raw material equivalent), 80 mg of valine (made by L-valine, Kyowa Hakko), 240 mg, leucine (made by L-leucine, Kyowa Hakko), Quen 300 mg of acid was added and dissolved by stirring. Sodium hydroxide was added to this to adjust the pH to 6, 0.2 mg of folic acid (folic acid / Roche vitamin) was added and dissolved by stirring. Further, an appropriate amount of purified water (room temperature) was added to make a total volume of 30 mL to produce an internal liquid.

比較例1
表2の処方に従い、ロイシンを加えない他は実施例1と同様に内服液剤を製造した。
Comparative Example 1
According to the formulation of Table 2, an internal preparation was prepared in the same manner as in Example 1 except that leucine was not added.

比較例2
表2の処方に従い、バリンを加えない他は実施例1と同様に内服液剤を製造した。
Comparative Example 2
According to the formulation of Table 2, an internal solution was produced in the same manner as in Example 1 except that valine was not added.

比較例3
表2の処方に従い、ロイシン及びバリンを加えない他は実施例1と同様に内服液剤を製造した。
Comparative Example 3
According to the formulation of Table 2, an internal preparation was prepared in the same manner as in Example 1 except that leucine and valine were not added.

試験例2
実施例1及び比較例1〜3で得られた内服液剤を60℃で1ヶ月間暗所保存した後、各内服液剤の葉酸含量をHPLC法により測定した。60℃、1ヶ月間保存後の各内服液剤の葉酸含量の、各内服液剤の調製直後における葉酸含量に対する残存率として算出したものを表2に示す。
Test example 2
After the internal liquids obtained in Example 1 and Comparative Examples 1 to 3 were stored in the dark at 60 ° C. for 1 month, the folic acid content of each internal liquid was measured by the HPLC method. Table 2 shows the folic acid content of each internal solution after storage at 60 ° C. for 1 month, calculated as the residual ratio with respect to the folic acid content immediately after the preparation of each internal solution.

Figure 2008024675
Figure 2008024675

葉酸、ショウキョウ、バリン、ロイシン、及び水を配合した本発明の内服液剤(実施例1)では、60℃1ヶ月で葉酸残存率は約92%であった。一方、実施例1からロイシンを配合しない内服液剤(比較例1)、バリンを配合しない内服液剤(比較例2)、バリン及びロイシンを配合しない内服液剤(比較例3)においては、60℃1ヶ月で葉酸残存率は約87%であり、経時的にほぼ同等な残存率の低下を認めた。よって本発明の内服液剤組成物は葉酸の経時的な含量低下が抑制されることが確認された。   In the internal use liquid preparation (Example 1) of the present invention containing folic acid, ginger, valine, leucine, and water, the residual ratio of folic acid was about 92% at 60 ° C. for 1 month. On the other hand, in Example 1, the oral solution containing no leucine (Comparative Example 1), the internal solution containing no valine (Comparative Example 2), or the internal solution containing no valine and leucine (Comparative Example 3), 60 ° C. for 1 month The residual rate of folic acid was about 87%, and a similar decrease in the residual rate over time was observed. Therefore, it was confirmed that the internal use liquid composition of the present invention suppresses a decrease in the content of folic acid over time.

本発明の内服液剤組成物は葉酸又はその塩、ショウキョウ、及び水を含有し、かつ、葉酸の経時的な含量低下が抑制された内服液剤組成物であり、医薬品産業、食品産業において利用できる。   The internal liquid composition of the present invention is an internal liquid composition that contains folic acid or a salt thereof, Tokyo, and water, and is capable of being used in the pharmaceutical industry and the food industry. .

Claims (2)

葉酸又はその塩、ショウキョウ、バリン、ロイシン、及び水を含有する内服液剤組成物。   An oral liquid composition containing folic acid or a salt thereof, ginger, valine, leucine, and water. 葉酸又はその塩1質量部に対し、ショウキョウを原生薬換算で25〜400000質量部、バリンを2.5〜100000質量部、ロイシンを2.5〜100000質量部含有するものである請求項1記載の内服液剤組成物。   2. 1 to 5 parts by mass of folic acid or a salt thereof, containing 25 to 400000 parts by mass in terms of crude drug, 2.5 to 100000 parts by mass of valine, and 2.5 to 100000 parts by mass of leucine The internal use liquid preparation composition as described.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011151685A1 (en) * 2010-06-03 2011-12-08 Raouf Rekik N-acetyl-dl-leucine, neuroprotective and retinoprotective medicament

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011151685A1 (en) * 2010-06-03 2011-12-08 Raouf Rekik N-acetyl-dl-leucine, neuroprotective and retinoprotective medicament
US9155719B2 (en) 2010-06-03 2015-10-13 Raouf Rekik N-acetyl-DL-leucine, neuroprotective and retinoprotective medicament

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