WO2011074567A1 - 塩基性消炎鎮痛剤含有経皮吸収製剤 - Google Patents
塩基性消炎鎮痛剤含有経皮吸収製剤 Download PDFInfo
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- WO2011074567A1 WO2011074567A1 PCT/JP2010/072454 JP2010072454W WO2011074567A1 WO 2011074567 A1 WO2011074567 A1 WO 2011074567A1 JP 2010072454 W JP2010072454 W JP 2010072454W WO 2011074567 A1 WO2011074567 A1 WO 2011074567A1
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- basic anti
- oxybuprocaine
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- acetaminophen
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/70—Web, sheet or filament bases ; Films; Fibres of the matrix type containing drug
- A61K9/7023—Transdermal patches and similar drug-containing composite devices, e.g. cataplasms
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/16—Amides, e.g. hydroxamic acids
- A61K31/165—Amides, e.g. hydroxamic acids having aromatic rings, e.g. colchicine, atenolol, progabide
- A61K31/167—Amides, e.g. hydroxamic acids having aromatic rings, e.g. colchicine, atenolol, progabide having the nitrogen of a carboxamide group directly attached to the aromatic ring, e.g. lidocaine, paracetamol
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/16—Amides, e.g. hydroxamic acids
- A61K31/18—Sulfonamides
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/21—Esters, e.g. nitroglycerine, selenocyanates
- A61K31/215—Esters, e.g. nitroglycerine, selenocyanates of carboxylic acids
- A61K31/235—Esters, e.g. nitroglycerine, selenocyanates of carboxylic acids having an aromatic ring attached to a carboxyl group
- A61K31/24—Esters, e.g. nitroglycerine, selenocyanates of carboxylic acids having an aromatic ring attached to a carboxyl group having an amino or nitro group
- A61K31/245—Amino benzoic acid types, e.g. procaine, novocaine
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/41—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with two or more ring hetero atoms, at least one of which being nitrogen, e.g. tetrazole
- A61K31/42—Oxazoles
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K45/00—Medicinal preparations containing active ingredients not provided for in groups A61K31/00 - A61K41/00
- A61K45/06—Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/0012—Galenical forms characterised by the site of application
- A61K9/0014—Skin, i.e. galenical aspects of topical compositions
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/70—Web, sheet or filament bases ; Films; Fibres of the matrix type containing drug
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P23/00—Anaesthetics
- A61P23/02—Local anaesthetics
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
- A61P25/04—Centrally acting analgesics, e.g. opioids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P29/00—Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
Definitions
- the present invention relates to a transdermally absorbable preparation, and in particular, contains a basic antiphlogistic analgesic as a medicinal ingredient and a local anesthetic as a local anesthetic and an absorption enhancer for the basic antiphlogistic analgesic. Relates to the patch.
- Patent Document 1 discloses that triacetin is a permeation enhancer for a basic drug having a dissociation constant (pKa) of 8 or more.
- Matrix patches formulated as are disclosed.
- Patent Document 2 reports a patch in which the transdermal absorbability of a basic drug is enhanced by blending a fatty acid having a specific carbon number into the patch.
- Patent Documents 3 to 5 disclose patches containing a basic drug and an organic acid and / or an organic acid salt. These proposals are intended to improve skin permeability of a basic drug by forming an ion pair stably with an organic acid (salt) blended with the basic drug.
- the present inventors have provided a percutaneous absorption that exhibits a high antiphlogistic analgesic effect without suppressing each other's drug release properties when a percutaneous absorption enhancer is added to a basic antiphlogistic analgesic.
- a local anesthetic can be selected as an absorption enhancer for a basic antiphlogistic analgesic and blended into a patch base to obtain a transdermal absorption preparation that exhibits excellent release properties of the basic antiphlogistic analgesic.
- the present inventors have found that a percutaneous absorption preparation having an excellent analgesic action can be obtained without impairing the transdermal absorbability of the local anesthetic agent, and the present invention has been completed.
- the present invention solves the above-described conventional problems, and in a transdermal absorption preparation containing a basic anti-inflammatory analgesic agent, an external patch that exhibits excellent drug release properties without impairing its physical properties
- the first task is to provide
- the present invention is capable of exhibiting a high release property of a basic anti-inflammatory analgesic agent in a transdermal preparation containing a local anesthetic agent and a basic anti-inflammatory agent without impairing the release property of the local anesthetic agent.
- the present invention that solves such problems is a transdermal absorption patch characterized by containing both a basic anti-inflammatory analgesic and a local anesthetic as an absorption accelerator for the basic anti-inflammatory analgesic.
- the present invention is a transdermal absorption patch that is a basic anti-inflammatory analgesic having an acid dissociation constant (pKa) of 7 or more as a basic anti-inflammatory analgesic.
- pKa acid dissociation constant
- the content of the basic anti-inflammatory analgesic is 0.1 to 10% by weight with respect to the total weight of the drug-containing paste, and the content of the absorption accelerator is the drug-containing paste.
- the transdermal patch is 0.01 to 20% by weight based on the total body weight.
- the present invention is a transdermal absorption patch wherein the basic anti-inflammatory analgesic is acetaminophen or valdecoxib and the local anesthetic is lidocaine or oxybuprocaine.
- a transdermal absorption patch characterized by containing both a basic anti-inflammatory analgesic and a local anesthetic as an absorption accelerator for the basic anti-inflammatory analgesic.
- the present invention can exhibit a high release property of the basic anti-inflammatory analgesic agent by combining the local anesthetic agent with the basic anti-inflammatory analgesic agent in the plaster composition, and is excellent in the local anesthetic agent. It is possible to provide a transdermally absorbable preparation capable of exhibiting an analgesic effect. Therefore, the medical effect of the present invention is great in that it can provide a patch which is a transdermal absorption preparation containing a clinically extremely useful basic anti-inflammatory analgesic.
- the basic aspect of the present invention is a transdermal absorption patch characterized in that it contains both a basic anti-inflammatory analgesic and a local anesthetic as an absorption accelerator for the basic anti-inflammatory analgesic.
- the basic anti-inflammatory analgesic used in the transdermal absorption patch provided by the present invention may be a basic anti-inflammatory analgesic having an acid dissociation constant (pKa) of 7 or more. Specific examples include acetaminophen, butorphanol tartrate, buprenorphine hydrochloride, epirizole, celecoxib, valdecoxib, and the like, and the effect was particularly high when acetaminophen and valdecoxib were used.
- the amount of the basic anti-inflammatory analgesic is preferably 0.1 to 10% by weight based on the total weight of the drug-containing plaster, that is, 0.2% by weight. % To 5% by weight is preferable. If the compounding amount of the drug is less than 0.1%, the efficacy of the anti-inflammatory analgesic agent may not be sufficiently obtained, and if the compounding amount is 10% or more, the physical properties of the plaster may be impaired.
- the local anesthetic agent to be blended together with the basic anti-inflammatory analgesic can be blended without any problem as long as it is a known one, but lidocaine or oxybuprocaine is particularly preferred.
- These local anesthetics themselves exhibit analgesic action, and in the present invention, they act as absorption enhancers of basic anti-inflammatory analgesics.
- the amount of the local anesthetic is preferably 0.01 to 20% by weight, more preferably 0.1 to 10% by weight, based on the total weight of the drug-containing plaster. If the blending amount is less than 0.01% by weight, not only the skin permeability of the basic anti-inflammatory analgesic can not be sufficiently increased, but also the effect of the local anesthetic may not be sufficiently obtained. Even if it exceeds 5% by weight, not only the blending effect cannot be expected but also skin irritation may occur and the physical properties of the plaster may be impaired.
- both the local anesthetic and the basic anti-inflammatory analgesic formulated in the plaster composition are superior bases without suppressing the drug release of the local anesthetic. It exhibits effects such as the ability to obtain drug-releasing properties of natural anti-inflammatory analgesics.
- acetaminophen is selected as a basic anti-inflammatory analgesic, and these are combined in combination, a very high effect can be obtained. there were.
- the plaster composition used in the patch provided by the present invention can be prepared by mixing a local anesthetic and a basic anti-inflammatory analgesic with a patch base component.
- a patch base component is not particularly limited as long as it becomes a base of the adhesive layer that is a plaster composition, but is hydrophobic such as rubber polymer, acrylic polymer, and silicon polymer. Polymers are preferably used.
- Examples of rubber polymers include styrene-isoprene-styrene block copolymer (hereinafter referred to as SIS), polyisobutylene (hereinafter referred to as PIB), and styrene-butadiene-styrene block copolymer (hereinafter referred to as SBS). ), Styrene-butadiene rubber (hereinafter referred to as SBR), isoprene rubber and the like, among which SIS is particularly preferable.
- SIS styrene-isoprene-styrene block copolymer
- PIB polyisobutylene
- SBS styrene-butadiene-styrene block copolymer
- SBR Styrene-butadiene rubber
- isoprene rubber and the like among which SIS is particularly preferable.
- the acrylic polymer is a copolymer obtained by containing at least one (meth) acrylic acid derivative represented by 2-ethylhexyl acrylate, methyl acrylate, butyl acrylate, hydroxyethyl acrylate, 2-ethylhexyl methacrylate, etc.
- the acrylic acid / octyl acrylate ester copolymer, 2-ethylhexyl acrylate / vinyl pyrrolidone acrylate which are listed as adhesives in the Pharmaceutical Additives Dictionary 2007 (edited by Japan Pharmaceutical Additives Association).
- Copolymer solution acrylic ester-vinyl acetate copolymer, 2-ethylhexyl acrylate-2-ethylhexyl methacrylate / dodecyl methacrylate copolymer, methyl acrylate-2-ethylhexyl acrylate copolymer resin
- acrylic polymer alkanolamine liquid adhesives such as acrylic polymer, DURO-TAK acrylic adhesive series (National Starch and Chemical Co., Ltd.), Eudragit series (Higuchi Shokai), etc. can be used. .
- a silicone rubber such as polyorganosiloxane can be given as a specific example of the silicon polymer.
- Two or more of these hydrophobic polymers may be used as a mixture, and the blending amount based on the total mass of these polymers is determined in consideration of the formation of the adhesive layer and sufficient drug permeability. 5 to 80% by weight, preferably 10 to 70% by weight, more preferably 10 to 50% by weight.
- the adhesive composition in the patch that is a transdermally absorbable preparation provided by the present invention may contain a plasticizer.
- Plasticizers that can be used include petroleum oils (eg, paraffinic process oils such as liquid paraffin, naphthenic process oils, aromatic process oils), squalane, squalene, vegetable oils (eg, olive oil, camellia oil) , Tall oil, peanut oil, castor oil, etc.), silicone oil, dibasic acid ester (eg, dibutyl phthalate, dioctyl phthalate, etc.), liquid rubber (eg, polybutene, liquid isoprene rubber, etc.), liquid fatty acid esters (eg, myristin) Isopropyl acid, hexyl laurate, diethyl sebacate, diisopropyl sebacate, etc.). Liquid paraffin is particularly preferable.
- the blending amount based on the entire composition of the adhesive layer of such a plasticizer is a total in consideration of maintaining sufficient cohesive strength as a patch. It is 1 to 70% by weight, preferably 10 to 60% by weight, and more preferably 10 to 50% by weight.
- tackifier resins that can be used include rosin derivatives (eg, rosin, rosin glycerin ester, hydrogenated rosin, hydrogenated rosin glycerin ester, rosin pentaerythrester, etc.), alicyclic saturated hydrocarbon resins (eg, alkone). P100, Arakawa Chemical Industries), aliphatic hydrocarbon resins (for example, Quinton B170, Nippon Zeon), terpene resins (for example, Clearon P-125, Yasuhara Chemical), maleic resin, and the like.
- the blending amount of such a tackifying resin based on the entire composition of the pressure-sensitive adhesive composition is 5 to 70% by weight, preferably in consideration of sufficient adhesive strength as a patch preparation and irritation to the skin upon peeling. It can be 5 to 60% by weight, more preferably 10 to 50% by weight.
- an antioxidant if necessary, an antioxidant, a filler, a crosslinking agent, an antiseptic, and an ultraviolet absorber can be used.
- an antioxidant tocopherol and an ester derivative thereof, ascorbic acid, ascorbic acid stearate ester , Nordi-human log ayaretinic acid, dibutylhydroxytoluene (hereinafter referred to as BHT), butylhydroxyanisole and the like are desirable.
- filler calcium carbonate, magnesium carbonate, silicate (eg, aluminum silicate, magnesium silicate, etc.), silicic acid, barium sulfate, calcium sulfate, calcium zincate, zinc oxide, titanium oxide and the like are desirable.
- silicate eg, aluminum silicate, magnesium silicate, etc.
- silicic acid barium sulfate, calcium sulfate, calcium zincate, zinc oxide, titanium oxide and the like are desirable.
- crosslinking agent examples include thermosetting resins such as amino resins, phenol resins, epoxy resins, alkyd resins, and unsaturated polyesters, isocyanate compounds, blocked isocyanate compounds, organic crosslinking agents, and inorganic crosslinking agents such as metals or metal compounds. desirable.
- parabens such as ethyl paraoxybenzoate, propyl paraoxybenzoate, and butyl paraoxybenzoate are desirable.
- UV absorber p-aminobenzoic acid derivatives, anthranilic acid derivatives, salicylic acid derivatives, amino acid compounds, dioxane derivatives, coumarin derivatives, imidazoline derivatives, pyrimidine derivatives, and the like are desirable.
- Such antioxidants, fillers, crosslinking agents, preservatives, UV absorbers are 10 wt% or less, preferably 5 wt% or less, more preferably based on the total mass of the adhesive layer of the preparation. It can mix
- the patch which is the transdermally absorbable preparation of the present invention having the composition as described above can be produced by any method.
- a method generally referred to as a hot melt method in which a base component containing a drug is melted by heat, applied to a release film or a support, and then bonded to the support or the release film to obtain this agent, or generally a solvent method
- the base component containing the drug is dissolved in an organic solvent such as toluene, hexane, ethyl acetate, and N-methyl-2-pyrrolidone, stretched onto a release film or support, applied, and the solvent is dried.
- the thickness of the pressure-sensitive adhesive layer in the patch that is a transdermal preparation for external use provided by the present invention is not particularly limited, but is usually 500 ⁇ m or less, preferably 20 to 300 ⁇ m.
- a stretchable or non-stretchable support can be used.
- it is selected from cloth, non-woven fabric, polyurethane, polyester, polyvinyl acetate, polyvinylidene chloride, polyethylene, polyethylene terephthalate (hereinafter abbreviated as PET), aluminum sheet, or a composite material thereof.
- the release film protects the adhesive layer until the patch, which is a transdermally absorbable preparation, is applied to the skin, does not alter the main ingredient, and is coated with silicon so that it can be easily peeled off.
- specific examples thereof include a silicon film coated polyethylene film, PET film or polypropylene film.
- Example 1 Acetaminophen / lidocaine combination preparation
- Acetaminophen was selected as a basic anti-inflammatory analgesic
- lidocaine was selected as a local anesthetic
- an external patch containing both was prepared.
- SIS 16% Liquid paraffin 28%
- Hydrogenated rosin glycerin ester 40%
- Acetaminophen 5% 100%
- acetaminophen was dissolved in N-methyl-2-pyrrolidone and lidocaine in toluene, and each was sequentially mixed with the remaining base components dissolved in toluene. After the mixture was applied onto a release film, toluene and N-methyl-2-pyrrolidone were removed by drying and bonded to a PET film support to obtain a desired transdermally absorbable preparation (adhesive layer thickness 100 ⁇ m).
- Example 2 Acetaminophen / oxybuprocaine combination preparation
- Acetaminophen was selected as a basic anti-inflammatory analgesic
- oxybuprocaine was selected as a local anesthetic, and an external patch containing both was prepared.
- Acetaminophen 5% 100%
- Valdecoxib / oxybuprocaine combination preparation Valdecoxib was selected as a basic anti-inflammatory analgesic, and oxybuprocaine was selected as a local anesthetic, and an external patch containing both was prepared.
- valdecoxib was dissolved in N-methyl-2-pyrrolidone and oxybuprocaine in toluene, and each was sequentially mixed with the remaining base components dissolved in toluene. After the mixture was applied onto a release film, toluene and N-methyl-2-pyrrolidone were removed by drying and bonded to a PET film support to obtain a desired transdermally absorbable preparation (adhesive layer thickness 100 ⁇ m).
- Comparative Example 1 Acetaminophen Formulation Formulation As Comparative Example 1, an external patch containing only acetaminophen was prepared. (Prescription) SIS 16% Liquid paraffin 38% BHT 1% Hydrogenated rosin glycerin ester 40% Acetaminophen 5% Total amount 100%
- Acetaminophen was previously dissolved in N-methyl-2-pyrrolidone and then mixed with the remaining base components dissolved in toluene. After applying the mixture onto a release film, toluene and N-methyl-2-pyrrolidone were removed by drying and bonded to a PET film support to obtain a desired transdermal absorption preparation (adhesive layer thickness 100 ⁇ m).
- Comparative Example 2 Lidocaine Formulation Formulation As Comparative Example 2, an external patch containing only lidocaine was prepared. (Prescription) SIS 16% Liquid paraffin 33% BHT 1% Hydrogenated rosin glycerin ester 40% Lidocaine 10% Total amount 100%
- Lidocaine and other base components were dissolved and mixed in toluene. After applying the mixture onto a release film, toluene was removed by drying, and the mixture was bonded to a PET film support to obtain a desired transdermal absorption preparation (adhesive layer thickness 100 ⁇ m).
- Comparative Example 3 Oxybuprocaine Formulation Formulation As Comparative Example 3, an external patch containing only oxybuprocaine was prepared. (Prescription) SIS 16% Liquid paraffin 33% BHT 1% Hydrogenated rosin glycerin ester 40% Oxybuprocaine 10% Total amount 100%
- Oxybuprocaine and other base components were dissolved and mixed in toluene. After applying the mixture onto a release film, toluene was removed by drying, and the mixture was bonded to a PET film support to obtain a desired transdermal absorption preparation (adhesive layer thickness 100 ⁇ m).
- Comparative Example 4 Valdecoxib Formulation Formulation As Comparative Example 4, an external patch containing only valdecoxib was prepared. (Prescription) SIS 18% Liquid paraffin 38% BHT 1% Hydrogenated rosin glycerin ester 40% Valdecoxib 3% Total amount 100%
- Valdecoxib was previously dissolved in N-methyl-2-pyrrolidone and mixed with other base components dissolved in toluene. After applying the mixture onto a release film, toluene was removed by drying, and the mixture was bonded to a PET film support to obtain a desired transdermal absorption preparation (adhesive layer thickness 100 ⁇ m).
- Comparative Example 5 Oxybuprocaine combination preparation As Comparative Example 5, an external patch containing only oxybuprocaine was prepared. (Prescription) SIS 18% Liquid paraffin 26% BHT 1% Hydrogenated rosin glycerin ester 40% Oxybuprocaine 15% Total amount 100%
- Oxybuprocaine and other base components were dissolved and mixed in toluene. After applying the mixture onto a release film, toluene was removed by drying, and the mixture was bonded to a PET film support to obtain a desired transdermal absorption preparation (adhesive layer thickness 100 ⁇ m).
- Example 1 which is an external patch containing both acetaminophen and lidocaine of the present invention
- Comparative Example 1 containing only acetaminophen
- Comparative Example 2 containing only lidocaine Of the release of acetaminophen and lidocaine by comparison with other preparations.
- Example 2 which is an external patch containing both acetaminophen and oxybuprocaine of the present invention using another local anesthetic agent, and Comparative Example 1 containing only acetaminophen Examination of release properties of acetaminophen and oxybuprocaine by comparison with the preparation and the preparation of Comparative Example 3 containing only oxybuprocaine.
- Example 3 which is an externally applied patch containing both valdecoxib and oxybuprocaine of the present invention using another basic anti-inflammatory analgesic agent, and the preparation of Comparative Example 4 containing only valdecoxib And the release of valdecoxib and oxybuprocaine by comparison with the preparation of Comparative Example 5 containing only oxybuprocaine.
- Test Example 1 Rat skin permeability test
- the isolated skin of male rats Wistar strain, 8 weeks old was used.
- An in vitro skin permeability test was conducted, and the release specificity of each drug in an external patch containing both the local anesthetic and the basic anti-inflammatory analgesic of the present invention was verified.
- Test Example 2 Rat Skin Permeability Test In vitro skin using the skin of male hairless rats (HWY, 7 weeks old) for external patches prepared in Example 3 and Comparative Examples 4 to 5 described above A permeability test was conducted to verify the release specificities of each drug in an external patch containing both the local anesthetic and the basic anti-inflammatory analgesic of the present invention.
- the external patch containing both acetaminophen and oxybuprocaine of the present invention is capable of releasing acetaminophen due to good release of oxybuprocaine as an absorption accelerator. It is understood that it is also increasing.
- the external patch containing both valdecoxib and oxybuprocaine of the present invention is excellent in oxybuprocaine as an absorption accelerator. It is understood that the release property of valdecoxib is also enhanced by the excellent release property.
- the patch of the present invention in which a local anesthetic is combined with a basic antiphlogistic analgesic does not suppress the release of the local anesthetic. It has been found that, along with its release, it is a transdermally absorbable preparation that can exhibit very excellent release properties of a basic anti-inflammatory analgesic, and the extremely excellent specificity of the present invention is understood. is there.
- Tables 1 and 2 below show formulation examples other than the external patch of the present invention shown in Examples 1 and 2 above. However, the present invention is not limited to these.
- Adhesive layer thickness 100 ⁇ m
- Adhesive layer thickness 100 ⁇ m
- the percutaneous absorption preparation provided by the present invention can provide a preparation exhibiting an excellent analgesic effect of a local anesthetic and an excellent anti-inflammatory analgesic effect of a basic anti-inflammatory analgesic.
- the present invention is capable of providing a transdermal absorption preparation that exhibits a high anti-inflammatory and analgesic effect without damaging the release of the local anesthetic and showing a high release of the basic anti-inflammatory analgesic. The medical effects are enormous.
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Abstract
Description
例えば、貼付剤中に特定の溶解剤あるいは吸収促進剤を添加する方法が提供されており、特許文献1には、解離定数(pKa)が8以上の塩基性薬物に対し、トリアセチンを透過増強剤として配合するマトリックスパッチが開示されている。
また、特許文献2には、貼付剤中に特定炭素数の脂肪酸を配合することによって塩基性薬物の経皮吸収性を高めた貼付剤が報告されている。
さらにまた、特許文献3~5には、塩基性薬物と有機酸及び/又は有機酸塩を配合した貼付剤が開示されている。
これらの提案は、塩基性薬物と配合する有機酸(塩)が安定的にイオン対を形成することにより、塩基性薬物の皮膚透過性の向上を図ったものである。
しかしながら、これらの報告において使用されている薬物は、インドメタシン、ジクロフェナクナトリウム、およびロキソプロフェンナトリウム等の、いわゆる酸性薬物を配合した貼付剤であり、アセトアミノフェン、ブトルファノール、あるいはブプレノルフィン等の塩基性消炎鎮痛剤と局所麻酔剤を配合した貼付剤に関する報告はほとんど見られないのが現状である。
その結果、塩基性消炎鎮痛剤に対する吸収促進剤として局所麻酔剤を選択し、貼付剤基剤に配合することにより、塩基性消炎鎮痛剤の優れた放出性を示す経皮吸収製剤を得ることができ、同時に、局所麻酔剤の経皮吸収性を損なうことなく、優れた鎮痛作用を併せ持つ経皮吸収製剤となること見出し、本発明を完成させるに至った。
また、本発明は、局所麻酔剤と、塩基性消炎鎮痛剤を配合した経皮吸収製剤において、局所麻酔剤の放出性を損なうことなく、塩基性消炎鎮痛剤の高い放出性を示すことが可能である製剤を提供することを第二の課題とする。
特に本発明は、局所麻酔剤を塩基性消炎鎮痛剤と共に膏体組成物中に配合した貼付剤とすることにより、塩基性消炎鎮痛剤の高い放出性を発揮できるとともに、局所麻酔剤の優れた鎮痛効果をも示すことが可能な経皮吸収製剤を提供できるものである。
したがって、臨床的に極めて有用な塩基性消炎鎮痛剤を含有する経皮吸収製剤である貼付剤を提供できる点で、本発明の医療上の効果は多大なものである。
本発明が提供する経皮吸収貼付剤において使用される塩基性消炎鎮痛剤としては、その酸解離定数(pKa)が7以上の塩基性消炎鎮痛剤であれば良い。
具体的には、アセトアミノフェン、酒石酸ブトルファノール、塩酸ブプレノルフィン、エピリゾール、セレコキシブ、およびバルデコキシブ等が挙げられるが、特にアセトアミノフェン並びにバルデコキシブを使用した場合にその効果が高いものであった。
薬物の配合量が、0.1%未満であると消炎鎮痛剤の薬効を十分に得られない場合があり、また、10%以上配合すると、膏体の物性を損なう場合があり好ましくない。
これらの局所麻酔剤は、それ自体が鎮痛作用を示す他、本発明では塩基性消炎鎮痛剤の吸収促進剤として作用するものである。
配合量が0.01重量%未満であると、塩基性消炎鎮痛剤の皮膚透過性を十分に高めることができないばかりか、局所麻酔剤の薬効を十分に得られない場合があり、逆に20重量%を超えて配合しても、その配合効果は期待できないばかりか、かえって皮膚刺激を生じたり、膏体の物性を損なったりする場合もあるため、好ましいものではない。
そのなかでも、特に、局所麻酔剤としてリドカインあるいはオキシブプロカインを選択し、塩基性消炎鎮痛剤としてアセトアミノフェンを選択し、これらを組み合わせて配合した場合に、非常に高い効果が得られるものであった。
かかる貼付剤基剤成分は、膏体組成物である粘着剤層の基剤となるものであれば特に限定されないが、ゴム系高分子、アクリル系高分子、およびシリコン系高分子等の疎水性高分子が好ましく使用される。
例えば、一般にホットメルト法と呼ばれる、薬物を含む基剤成分を熱融解させ、剥離フィルム又は支持体に塗工後、支持体又は剥離フィルムと貼り合わせて本剤を得る方法と、もしくは一般に溶媒法と呼ばれる、薬物を含む基剤成分をトルエン、ヘキサン、酢酸エチル、およびN-メチル-2-ピロリドン等の有機溶媒に溶解させ、剥離フィルム又は支持体上に伸展して塗工し、溶剤を乾燥除去後、支持体又は剥離フィルムと貼り合わせ本剤を得る方法である。
なお、以下の記載において、%は、特に示さない限り全て重量%を意味する。
塩基性消炎鎮痛剤としてアセトアミノフェンを、また、局所麻酔剤としてリドカインを選択し、両者を配合した外用貼付剤を調製した。
(処方)
SIS 16%
流動パラフィン 28%
BHT 1%
水添ロジングリセリンエステル 40%
リドカイン 10%
アセトアミノフェン 5%
全 量 100%
予め、アセトアミノフェンをN-メチル-2-ピロリドン、およびリドカインをトルエンに溶解させ、それぞれを順次、トルエンに溶解させた残りの基剤成分と混合した。混合物を剥離フィルム上に塗工後、トルエン、およびN-メチル-2-ピロリドンを乾燥除去し、PETフィルム支持体と貼り合わせて、所望の経皮吸収製剤(粘着層の厚み100μm)を得た。
塩基性消炎鎮痛剤としてアセトアミノフェンを、また、局所麻酔剤としてオキシブプロカインを選択し、両者を配合した外用貼付剤を調製した。
(処方)
SIS 16%
流動パラフィン 28%
BHT 1%
水添ロジングリセリンエステル 40%
オキシブプロカイン 10%
アセトアミノフェン 5%
全 量 100%
予め、アセトアミノフェンをN-メチル-2-ピロリドン、およびオキシブプロカインをトルエンに溶解させ、それぞれを順次、トルエンに溶解させた残りの基剤成分と混合した。混合物を剥離フィルム上に塗工後、トルエン、およびN-メチル-2-ピロリドンを乾燥除去し、PETフィルム支持体と貼り合わせて、所望の経皮吸収製剤(粘着層の厚み100μm)を得た。
塩基性消炎鎮痛剤としてバルデコキシブを、また、局所麻酔剤としてオキシブプロカインを選択し、両者を配合した外用貼付剤を調製した。
(処方)
SIS 18%
流動パラフィン 23%
BHT 1%
水添ロジングリセリンエステル 40%
オキシブプロカイン 15%
バルデコキシブ 3%
全 量 100%
予め、バルデコキシブをN-メチル-2-ピロリドン、およびオキシブプロカインをトルエンに溶解させ、それぞれを順次、トルエンに溶解させた残りの基剤成分と混合した。混合物を剥離フィルム上に塗工後、トルエン、およびN-メチル-2-ピロリドンを乾燥除去し、PETフィルム支持体と貼り合わせて、所望の経皮吸収製剤(粘着層の厚み100μm)を得た。
比較例1として、アセトアミノフェンのみを配合した外用貼付剤を調製した。
(処方)
SIS 16%
流動パラフィン 38%
BHT 1%
水添ロジングリセリンエステル 40%
アセトアミノフェン 5%
全 量 100%
予め、アセトアミノフェンをN-メチル-2-ピロリドンに溶解した後、トルエンに溶解させた残りの基剤成分と混合した。混合物を剥離フィルム上に塗工後トルエン、およびN-メチル-2-ピロリドンを乾燥除去し、PETフィルム支持体と貼り合わせて、所望の経皮吸収製剤(粘着層の厚み100μm)を得た。
比較例2として、リドカインのみを配合した外用貼付剤を調製した。
(処方)
SIS 16%
流動パラフィン 33%
BHT 1%
水添ロジングリセリンエステル 40%
リドカイン 10%
全 量 100%
リドカインと他の基剤成分とをトルエンに溶解、混合した。混合物を剥離フィルム上に塗工後、トルエンを乾燥除去し、PETフィルム支持体と貼り合わせて、所望の経皮吸収製剤(粘着層の厚み100μm)を得た。
比較例3として、オキシブプロカインのみを配合した外用貼付剤を調製した。
(処方)
SIS 16%
流動パラフィン 33%
BHT 1%
水添ロジングリセリンエステル 40%
オキシブプロカイン 10%
全 量 100%
オキシブプロカインと他の基剤成分をトルエンに溶解、混合した。混合物を剥離フィルム上に塗工後、トルエンを乾燥除去し、PETフィルム支持体と貼り合わせて、所望の経皮吸収製剤(粘着層の厚み100μm)を得た。
比較例4として、バルデコキシブのみを配合した外用貼付剤を調製した。
(処方)
SIS 18%
流動パラフィン 38%
BHT 1%
水添ロジングリセリンエステル 40%
バルデコキシブ 3%
全 量 100%
予めバルデコキシブをN-メチル-2-ピロリドンに溶解し、トルエンに溶解した他の基剤成分と混合した。混合物を剥離フィルム上に塗工後、トルエンを乾燥除去し、PETフィルム支持体と貼り合わせて、所望の経皮吸収製剤(粘着層の厚み100μm)を得た。
比較例5として、オキシブプロカインのみを配合した外用貼付剤を調製した。
(処方)
SIS 18%
流動パラフィン 26%
BHT 1%
水添ロジングリセリンエステル 40%
オキシブプロカイン 15%
全 量 100%
オキシブプロカインと他の基剤成分をトルエンに溶解、混合した。混合物を剥離フィルム上に塗工後、トルエンを乾燥除去し、PETフィルム支持体と貼り合わせて、所望の経皮吸収製剤(粘着層の厚み100μm)を得た。
[対比検討]
(1)本発明のアセトアミノフェン及びリドカインの両者を配合した外用貼付剤である実施例1の製剤と、アセトアミノフェンのみを配合した比較例1の製剤、及びリドカインのみを配合した比較例2の製剤との対比による、アセトアミノフェン及びリドカインの放出性の検討。
(2)別の局所麻酔剤を用いた、本発明のアセトアミノフェン及びオキシブプロカインの両者を配合した外用貼付剤である実施例2の製剤と、アセトアミノフェンのみを配合した比較例1の製剤、及びオキシブプロカインのみを配合した比較例3の製剤との対比による、アセトアミノフェン及びオキシブプロカインの放出性の検討。
(3)さらに別の塩基性消炎鎮痛剤を用いた、本発明のバルデコキシブ及びオキシブプロカインの両者を配合した外用貼付剤である実施例3の製剤と、バルデコキシブのみを配合した比較例4の製剤、及びオキシブプロカインのみを配合した比較例5の製剤との対比による、バルデコキシブ及びオキシブプロカインの放出性の検討。
上記した実施例1、実施例2、および比較例1~3で調製された外用貼付剤について、雄性ラット(ウィスター系、8週齢)の摘出皮膚を使用したin vitro皮膚透過性試験を行い、本発明の局所麻酔剤及び塩基性消炎鎮痛剤の両者を配合した外用貼付剤における各薬物の放出性の特異性を検証した。
ラットの腹部皮膚を剥離し、真皮側をレセプター層側にし、その内側にはリン酸緩衝生理食塩水を満たし、ウォータージャケットには37℃の温水を還流させた。実施例1、実施例2、および比較例1~3で調製された各製剤を、円状(1.77cm2)に打ち抜き、摘出皮膚を貼付し、経時的にレセプター液をサンプリングし、高速液体クロマトグラフ法により、各薬物(リドカイン、オキシブプロカイン、及びアミノアセトフェン)の透過量を測定した。
上記した実施例3、および比較例4~5で調製された外用貼付剤について、雄性ヘアレスラット(HWY系、7週齢)の摘出皮膚を使用したin vitro皮膚透過性試験を行い、本発明の局所麻酔剤及び塩基性消炎鎮痛剤の両者を配合した外用貼付剤における各薬物の放出性の特異性を検証した。
ラットの腹部皮膚を剥離し、真皮側をレセプター層側にし、その内側にはリン酸緩衝生理食塩水を満たし、ウォータージャケットには37℃の温水を還流させた。実施例1、実施例3、および比較例4~5で調製された各製剤を、円状(1.77cm2)に打ち抜き、摘出皮膚を貼付し、経時的にレセプター液をサンプリングし、高速液体クロマトグラフ法により、各薬物(オキシブプロカイン、及びバルデコキシブ)の透過量を測定した。
その結果を図1~図6に示した。
対比検討(1)に対する考察
図1及び図2に示した結果の対比より明らかなように、アセトアミノフェンとリドカインの両者を配合した実施例1の外用貼付剤は、アセトアミノフェンのみを配合した比較例1の外用貼付剤と比較して、アセトアミノフェンの放出性は、飛躍的に高いものであった(図1)。
また、アセトアミノフェンとリドカインの両者を配合した実施例1の外用貼付剤は、リドカインのみを配合した製剤である比較例2の外用貼付剤と比較して、ほぼ同等のリドカイン放出性を示していた(図2)。
この両者の結果を加味すると、本発明のアセトアミノフェンとリドカインの両者を配合した外用貼付剤は、吸収促進剤としてのリドカインの良好な放出性により、アセトアミノフェンの放出性も高まっていることが理解される。
一方、同様な試験を、別の局所麻酔剤であるオキシブプロカインについて検討したが、対比検討(1)と同様に、アセトアミノフェンとオキシブプロカインの両者を配合した実施例2の外用貼付剤は、アセトアミノフェンのみを配合した製剤である比較例2の外用貼付剤と比較して、アセトアミノフェンの放出性は、飛躍的に高いものであった(図3)。
また、アセトアミノフェンとオキシブプロカインの両者を配合した実施例2の外用貼付剤は、オキシブプロカインのみを配合した製剤である比較例3の外用貼付剤と比較して、ほぼ同等のオキシブプロカインの放出性を示していた(図4)。
さらに、同様な試験を、別の塩基性消炎鎮痛剤であるバルデコキシブについて検討したが、対比検討(1)と同様に、バルデコキシブとオキシブプロカインの両者を配合した実施例3の外用貼付剤は、バルデコキシブのみを配合した製剤である比較例4の外用貼付剤と比較して、バルデコキシブの放出性は、良好なものであった(図5)。
また、バルデコキシブとオキシブプロカインの両者を配合した実施例3の外用貼付剤は、オキシブプロカインのみを配合した製剤である比較例5の外用貼付剤と比較して、ほぼ同等のオキシブプロカインの放出性を示していた(図6)。
以下に、上記の実施例1及び2に示した本発明の外用貼付剤以外の製剤例を、下記表1及び表2に示した。但し、本発明はこれらに限定されるものではない。
特に本発明は、局所麻酔剤の放出性を損なうことなく、かつ塩基性消炎鎮痛剤の高い放出性を示し、その結果、優れた消炎鎮痛効果を発揮する経皮吸収製剤を提供できるものであり、その医療上の効果は多大なものである。
Claims (6)
- 塩基性消炎鎮痛剤と、それに対する吸収促進剤としての局所麻酔剤の両者を含有することを特徴とする経皮吸収貼付剤。
- 塩基性消炎鎮痛剤が、酸解離定数(pKa)が7以上である塩基性消炎鎮痛剤である請求項1に記載の経皮吸収貼付剤。
- 塩基性消炎鎮痛剤の含有量が、薬物含有膏体全重量に対して0.1~10重量%である請求項1に記載の経皮吸収貼付剤。
- 吸収促進剤の含有量が、薬物含有膏体全重量に対して0.01~20重量%である請求項1に記載の経皮吸収貼付剤。
- 塩基性消炎鎮痛剤がアセトアミノフェン又はバルデコキシブである請求項1ないし4のいずれかに記載の経皮吸収貼付剤。
- 局所麻酔剤がリドカイン又はオキシブプロカインである請求項1ないし4のいずれかに記載の経皮吸収貼付剤。
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| WO2005115355A1 (ja) | 2004-05-28 | 2005-12-08 | Hisamitsu Pharmaceutical Co., Inc. | 貼付製剤 |
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| US7871607B2 (en) * | 2003-03-05 | 2011-01-18 | Halozyme, Inc. | Soluble glycosaminoglycanases and methods of preparing and using soluble glycosaminoglycanases |
| US7666914B2 (en) * | 2004-06-03 | 2010-02-23 | Richlin David M | Topical preparation and method for transdermal delivery and localization of therapeutic agents |
| AU2007309281B2 (en) * | 2006-10-20 | 2013-10-31 | Johnson & Johnson Consumer Inc. | Acetaminophen / ibuprofen combinations |
| US7829116B2 (en) * | 2006-11-14 | 2010-11-09 | Momentive Performance Materials Inc. | Adhesive-forming composition and blend of adhesives obtained therefrom |
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2010
- 2010-12-14 KR KR1020127017962A patent/KR101738200B1/ko active Active
- 2010-12-14 JP JP2011546128A patent/JP5677680B2/ja not_active Expired - Fee Related
- 2010-12-14 US US13/516,094 patent/US20120322840A1/en not_active Abandoned
- 2010-12-14 TW TW099143613A patent/TW201129397A/zh unknown
- 2010-12-14 ES ES10837593.2T patent/ES2628421T3/es active Active
- 2010-12-14 WO PCT/JP2010/072454 patent/WO2011074567A1/ja not_active Ceased
- 2010-12-14 CN CN201080063967.4A patent/CN102740890B/zh not_active Expired - Fee Related
- 2010-12-14 EP EP10837593.2A patent/EP2514440B1/en active Active
- 2010-12-14 AU AU2010331264A patent/AU2010331264B2/en not_active Ceased
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Also Published As
| Publication number | Publication date |
|---|---|
| KR101738200B1 (ko) | 2017-05-19 |
| EP2514440A4 (en) | 2013-06-05 |
| US20120322840A1 (en) | 2012-12-20 |
| AU2010331264A1 (en) | 2012-07-12 |
| KR20120109552A (ko) | 2012-10-08 |
| TW201129397A (en) | 2011-09-01 |
| CA2783569A1 (en) | 2011-06-23 |
| ES2628421T3 (es) | 2017-08-02 |
| JPWO2011074567A1 (ja) | 2013-04-25 |
| CN102740890A (zh) | 2012-10-17 |
| CN102740890B (zh) | 2015-05-13 |
| JP5677680B2 (ja) | 2015-02-25 |
| AU2010331264B2 (en) | 2014-05-01 |
| CA2783569C (en) | 2017-07-04 |
| EP2514440A1 (en) | 2012-10-24 |
| EP2514440B1 (en) | 2017-03-29 |
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