ES2322699T3 - Lamina o capa soluble en agua, que presenta humectabilidad inmediata para la aplicacion oral. - Google Patents
Lamina o capa soluble en agua, que presenta humectabilidad inmediata para la aplicacion oral. Download PDFInfo
- Publication number
- ES2322699T3 ES2322699T3 ES03014213T ES03014213T ES2322699T3 ES 2322699 T3 ES2322699 T3 ES 2322699T3 ES 03014213 T ES03014213 T ES 03014213T ES 03014213 T ES03014213 T ES 03014213T ES 2322699 T3 ES2322699 T3 ES 2322699T3
- Authority
- ES
- Spain
- Prior art keywords
- mucoadhesive
- sheet according
- mucoadhesive sheet
- polyethoxy
- sheet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 27
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- 229920000642 polymer Polymers 0.000 claims abstract description 20
- 239000002537 cosmetic Substances 0.000 claims abstract description 11
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- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims abstract description 5
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- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 claims abstract description 5
- -1 sorbitan fatty acid Chemical class 0.000 claims description 17
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 16
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- MIDXCONKKJTLDX-UHFFFAOYSA-N 3,5-dimethylcyclopentane-1,2-dione Chemical compound CC1CC(C)C(=O)C1=O MIDXCONKKJTLDX-UHFFFAOYSA-N 0.000 claims 1
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- IEQAICDLOKRSRL-UHFFFAOYSA-N 2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-(2-dodecoxyethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethanol Chemical compound CCCCCCCCCCCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO IEQAICDLOKRSRL-UHFFFAOYSA-N 0.000 description 3
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- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 2
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- RFRMMZAKBNXNHE-UHFFFAOYSA-N 6-[4,6-dihydroxy-5-(2-hydroxyethoxy)-2-(hydroxymethyl)oxan-3-yl]oxy-2-(hydroxymethyl)-5-(2-hydroxypropoxy)oxane-3,4-diol Chemical compound CC(O)COC1C(O)C(O)C(CO)OC1OC1C(O)C(OCCO)C(O)OC1CO RFRMMZAKBNXNHE-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
- A61K8/0208—Tissues; Wipes; Patches
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- 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
- A61K9/0053—Mouth and digestive tract, i.e. intraoral and peroral administration
- A61K9/006—Oral mucosa, e.g. mucoadhesive forms, sublingual droplets; Buccal patches or films; Buccal sprays
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- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
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- A61K8/39—Derivatives containing from 2 to 10 oxyalkylene groups
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- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/49—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds
- A61K8/4906—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds with one nitrogen as the only hetero atom
- A61K8/4926—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds with one nitrogen as the only hetero atom having six membered rings
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- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/81—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
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- A—HUMAN NECESSITIES
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- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q11/00—Preparations for care of the teeth, of the oral cavity or of dentures; Dentifrices, e.g. toothpastes; Mouth rinses
Landscapes
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Abstract
Lámina mucoadhesiva para la administración oral, que contiene por lo menos un polímero soluble o dispersable en agua, por lo menos un polialcohol y un principio activo farmacéutico o cosmético, caracterizada porque contiene hidroxi propil metil celulosa así como una combinación de dos o más sustancias tensioactivas, no iónicas.
Description
Lámina o capa soluble en agua, que presenta
humectabilidad inmediata para la aplicación oral.
La presente invención describe una preparación
que contiene sustancias activas farmacéuticas y/o sustancias
activas para refrescar el aliento, y que se aplican en la cavidad
bucal. El soporte comprende polímeros solubles en agua, en
combinación con determinados componentes y tiene un efecto
terapéutico y/o cosmético. La lámina se aplica y se seca utilizando
tecnologías de recubrimiento actuales y presenta una humectabilidad
inmediata, seguida de una rápida disolución/disgregación cuando se
aplica en la cavidad bucal.
En el estado de la técnica se conocen sistemas
de dosificación que se adhieren a la mucosa (mucoadhesivos), que
se aplican en la cavidad bucal, con los cuales se suministran
principios activos terapéuticos y/o cosméticos a la mucosa
bucal.
La patente US 5,047,244 describe un soporte que
se adhiere a la mucosa bucal para la emisión controlada de un
principio activo terapéutico a través del tejido mucoso, que
contiene una matriz polímera anhidra, pero que se puede hidratar, y
dióxido de silicio amorfo.
Se puede añadir, si se desea, una lámina
insoluble en agua, para que la superficie no sea adhesiva.
El documento WO 91/06270, del mismo inventor,
describe una lámina de tres capas para la emisión prolongada de un
principio activo en la cavidad bucal.
Asimismo describe el documento US 4,876,092 una
preparación adhesiva, en forma de superficie, que comprende una
capa adhesiva, que contiene determinados polímeros solubles e
insolubles en agua y un soporte insoluble en agua, que se adhiere a
la mucosa bucal, emitiendo de esta forma una sustancia activa en la
cavidad bucal.
Todos los dispositivos antes citados no se
disuelven completamente en agua y permanecen en la cavidad bucal,
incluso tras haber alcanzado el objetivo terapéutico y proporcionan
al paciente cierta sensación desagradable, que se debe
principalmente a la capa de soporte que deja un residuo insoluble en
la boca.
Se ha realizado toda una serie de ensayos para
reducir la sensación desagradable en la cavidad bucal, causado por
la rigidez y la falta de flexibilidad de la capa de soporte,
introduciendo soportes de lámina blandos. Los documentos EP 0 200
508 y EP 0 381 194 proponen la utilización de películas de
polietileno, polivinil acetato, copolímero de
etileno-vinil acetato, hojas de metal, laminados de
tela o de papel y una lámina de plástico, y materiales similares,
como soportes blandos, siendo los materiales preferidos las resinas
sintéticas como el polietileno, los homopolímeros de vinil acetato
y el etileno-vinil acetato.
De forma similar, el documento CA 1 263 312
describe la utilización de poliolefinas como polietileno,
polipropileno, poliéster, PVC así como fibras no tejidas, como
materiales de soporte blandos.
No obstante, dichos materiales dejan, en el
paciente, una cantidad considerable de residuos procedentes de la
lámina de soporte insoluble en agua y siguen causando por lo tanto
una sensación desagradable. Una solución evidente para solucionar
este problema consistía en desarrollar unas láminas que se
adhirieran a las mucosas, y que se disgregaran completamente o se
disolvieran en la saliva.
Fuchs e Hilmann (DE 24 49 865.5 y DE 24 32 925)
produjeron láminas homogéneas, solubles en agua, para la
administración bucal de hormonas. Propusieron utilizar derivados
solubles en agua de la celulosa como hidroxi etil celulosa, hidroxi
propil celulosa o metil hidroxi propil celulosa como agentes
filmógenos.
Las dos patentes DE 36 30 603 y EP 0 219 762
describen la utilización de polímeros hinchables como gelatina o
almidón de maíz como agentes filmógenos, los cuales se disgregan
lentamente en la cavidad bucal después de la aplicación, liberando
una sustancia activa contenida en la lámina. Se pueden utilizar
también los mismos polímeros para fabricar láminas que se utilizan
en el cuidado dental, como se describe en el documento EP 0 452
446.
No obstante, también estas preparaciones
producen una sensación desagradable en la boca, causada
particularmente por su rigidez inicial y su reblandecimiento
retardado. De ahí la necesidad de una composición que se utilice en
la cavidad bucal y que tenga en cuenta la necesidad de tener una
sensación agradable en la boca.
La presente invención describe un procedimiento
y unas preparaciones, mediante los cuales se puede evitar la
sensación desagradable, utilizando una lámina o capa que presente
una humectabilidad inmediata para aplicarla a la mucosa bucal,
mediante lo cual se consigue una resistencia a la rotura en la
lámina libre, que permite un recubrimiento sin problemas, una
elaboración ulterior así como el envasado de un producto agradable
para el usuario.
La presente invención se refiere a una lámina
mucoadhesiva, de disolución rápida, para la administración oral,
que se adhiere a la cavidad bucal, emitiendo de este modo una
sustancia activa farmacéutica o cosmética, con la particularidad de
que la lámina contiene por lo menos un polímero soluble o
dispersable en agua, por lo menos un polialcohol y un principio
activo farmacéutico o cosmético, así como una combinación de dos o
más sustancias tensioactivas, no iónicas. La lámina contiene hidroxi
propil metil celulosa como polímero soluble o dispersable en
agua.
Opcionalmente, la formulación puede contener una
combinación de determinados plastificantes, colorantes,
edulcorantes, aromatizantes, saborizantes u otros correctores, como
los que se utilizan habitualmente para la aplicación en la cavidad
bucal de determinadas formulaciones. La lámina resultante se
caracteriza por su humectabilidad inmediata, lo cual hace que la
lámina se reblandezca inmediatamente después de su aplicación al
tejido mucoso, con lo cual se evita que el paciente tenga una
sensación desagradable y duradera en la boca, así como por una
resistencia a la rotura adecuada para operaciones normales de
recubrimiento, corte, recorte y envasado.
La lámina mucoadhesiva de la presente invención
contiene como componentes esenciales un polímero soluble en agua o
una combinación de polímeros solubles en agua, uno o más
plastificantes o sustancias tensioactivas, uno o varios
polialcoholes y una sustancia activa farmacéutica o cosmética.
Los polímeros utilizados para la lámina
mucoadhesiva son polímeros hidrófilos y/o dispersables en agua. Los
polímeros particularmente preferidos son los derivados solubles en
agua de la celulosa como hidroxi propil metil celulosa, hidroxi etil
celulosa e hidroxi propil celulosa, solos o en mezcla. Como ejemplos
de otros polímeros facultativos, sin que esto suponga limitar la
invención, se pueden citar los siguientes:
polivinil-pirrolidona, carboxi metil celulosa,
polivinil alcohol, alginato sódico, polietilen glicol, gomas
naturales como resina de xantano, traganto, resina guar, resina de
acacia, goma arábiga, poliacrilatos dispersables en agua como ácido
poliacrílico, copolímeros de metil metacrilato, copolímeros de
carboxi vinilo. La concentración del polímero soluble en agua en la
lámina terminada puede oscilar entre 20 y 75% en peso. Una
concentración preferida oscila entre 50 y 75% en peso.
Las sustancias tensioactivas que se utilizan
para la lámina mucoadhesiva son una combinación de dos o más
sustancias tensioactivas no iónicas. El primer componente puede ser
un éster del ácido graso poli etoxi sorbitan o un copolímero en
bloque de
\alpha-hidro-\omega-hidroxipoli(etoxi)-poli
(propoxi)-poli(etoxi), mientras que el
segundo componente puede ser un polietoxi alquil éter o un derivado
de aceite de polietoxi-ricino.
De preferencia, el valor HLB de los ésteres del
ácido graso polietoxi sorbitan está comprendido entre 10 y 20, de
preferencia, en particular, entre 13 y 17. El copolímero en bloque
de
\alpha-hidro-\omega-hidroxi
poli(etoxi)-poli(propoxi)-poli
(etoxi) contiene por lo menos 35, de preferencia, por lo menos 50
unidades propoxi.
El polietoxi alquil éter debe tener un valor HLB
comprendido entre 10 y 20, de preferencia no inferior a 15. El
derivado de polietoxi-aceite de ricino debe tener un
valor HLB entre 14 y 16.
Para lograr la humectibilidad inmediata deseada,
la proporción entre el primero y el segundo componente de una
mezcla tensioactiva binaria debe mantenerse entre 1:10 y 1:1, de
preferencia entre 1:5 y 1:3.
La concentración total de las sustancias
tensioactivas en la película terminada depende de las propiedades
de los demás ingredientes, aunque por lo general, oscila entre 0,1
y 5% en peso.
El polialcohol se necesita para alcanzar el
grado de blandura deseado de la lámina. Como ejemplos de
polialcoholes, se pueden mencionar la glicerina, el polietilen
glicol, el polipropilen glicol, monoésteres de glicerina con ácidos
grasos u otros polialcoholes farmacéuticos utilizados. La
concentración de polialcohol en la masa seca de la lámina suele ser
de 0,1 a 5% en peso.
La lámina resulta particularmente bien adecuada
para la emisión de sustancias activas farmacéuticas de amplio
espectro a través de las membranas de las mucosas de un paciente, en
particular, a través de las mucosas bucales. Resultan
particularmente adecuadas las sustancias activas terapéuticas que
tienen problemas de absorción como consecuencia de una solubilidad
limitada, degradación en el tracto gastrointestinal o metabolismo
extensivo.
Como ejemplos de sustancias activas terapéuticas
que se pueden utilizar, se mencionan las siguientes: hipnóticos,
sedativos, antiepilépticos, aminas analépticas, psiconeurotrópicos,
neurobloqueantes musculares, antiespasmódicos, antihistamínicos,
antialérgicos, cardiotónicos, antiarrítmicos, diuréticos,
hipotensivos, vasopresores, antitusivos, expectorantes, hormona
tiroidea, hormona sexual, antidiabéticos, principios activos
antitumorales, antibióticos así como quimioterapéuticos y
narcóticos. La cantidad de sustancia activa a depositar en la
lámina depende de su naturaleza y suele oscilar entre 0,01 y 20% en
peso; no obstante, puede ser mayor si se requiere para lograr el
efecto
deseado.
deseado.
Las sustancias cosméticas pueden ser
refrescantes como el mentol, otras sustancias gustativas,
aromáticas o materias olorosas, como las que se utilizan
habitualmente para la higiene bucal, y/o sustancias activas para el
cuidado dental y/o la higiene bucal, por ejemplo, bases de amonio
cuaternario. El efecto de las sustancias gustativas y aromáticas se
puede potenciar con reforzadores gustativos como el ácido
tartárico, ácido cítrico, vainillina o similares.
Los colorantes que se añadan opcionalmente a la
lámina deben ofrecer garantías en cuanto a toxicidad y deben ser
autorizados por las autoridades competentes para poderlos utilizar
en cosméticos.
\newpage
La lámina mucoadhesiva según la invención puede
fabricarse del siguiente modo:
El polialcohol, las sustancias tensioactivas,
los plastificantes y otros posibles componentes, con excepción
del/de los polímero(s) solubles o dispersables en agua, se
disuelven con una cantidad suficiente de disolvente compatible. Como
ejemplos de disolventes compatibles, se pueden citar: el agua, los
alcoholes o sus mezclas. Una vez que se ha formado una solución
clara, se añade el polímero dispersable en agua o la mezcla de
polímeros dispersables en agua, agitando lentamente, y, si es
preciso, con calor, hasta que se forma una solución clara y
homogénea. Esta se aplica sobre un soporte y se seca para obtener
una lámina. El material de soporte debe tener una tensión
superficial que permite distribuir de forma homogénea la solución
de polímeros sobre la anchura prevista de recubrimiento, sin que
se absorba la solución y se genere de este modo una unión
destructiva entre el soporte y el recubrimiento.
Como ejemplos de materiales adecuados, se pueden
citar las láminas de polietilen-tereftalato no
siliconadas, papel Kraft no siliconado, papel Kraft impregnado de
polietileno o lámina de polietileno no siliconado.
La aplicación de la solución sobre el material
de soporte se puede realizar con cualquier dispositivo habitual.
Una técnica de aplicación especialmente preferida recurre a una
máquina estucadora de raspador.
El grosor de la capa laminar resultante depende
de la concentración de las sustancias sólidas en la solución de
recubrimiento así como de la separación entre rodillos de la
máquina de carga y puede oscilar entre 5 y 200 \mum. El secado de
la lámina se realiza en un baño de aire caliente utilizando un
horno de secado, túnel de secado, secador al vacío o cualquier otro
dispositivo de secado adecuado, que no incida negativamente en la
eficacia de la/de las sustancia(s)
activa(s) o de las sustancias gustativas. Para evitar, de forma fiable, una sensación desagradable en la boca, el grosor de la lámina no debe superar los 70 \mum.
activa(s) o de las sustancias gustativas. Para evitar, de forma fiable, una sensación desagradable en la boca, el grosor de la lámina no debe superar los 70 \mum.
Para facilitar la utilización, se puede cortar y
envasar la lámina en trozos de tamaño y forma adecuados.
La invención se ilustra con los siguientes
ejemplos.
\vskip1.000000\baselineskip
Ejemplo
1
En una mezcla de 250 g de agua y 250 g de etanol
a 60ºC, se agitan 15 g de sorbita, 6 g de glicerina, 0,5 g de
polisorbato 80 (Tween 80), 2 g de Brij 35, 25 g de aroma de
menta-limón, 3 g de aspartamo, 15 g de
1-mentol y 3 g de ácido cítrico, hasta que se forma
una solución clara.
Se añade a la solución 30 g de hidroxi propil
metil celulosa agitando lentamente hasta que se forme una solución
clara y homogénea. La solución resultante se deja entonces enfriar
hasta temperatura ambiente y se aplica sobre un material de soporte
adecuado utilizando un dispositivo habitual de
recubrimiento/secado. El material de soporte puede ser, por
ejemplo, papel Kraft recubierto de polietileno, no siliconado. La
separación de recubrimiento y la velocidad de alimentación se
tienen que ajustar de forma que se obtenga un grosor de lámina seca
entre 20 y 50 \mum. La temperatura de secado depende de la
longitud del horno de secado y de la velocidad del material y se
tiene que ajustar de modo que el disolvente se elimine completamente
o por lo menos lo más completamente posible de la lámina. La
lámina resultante se desprenderá del soporte y se dividirá en trozos
de tamaño y forma adecuados.
\vskip1.000000\baselineskip
Ejemplo
2
En una mezcla de 400 g de agua y 400 g de etanol
a 60ºC se disuelven agitando 3 g de sorbita, 1,5 g de Kollidon 30
(proveedor: BASF), 5 g de glicerina, 5 g de propilen glicol, 5 g de
polietilen glicol, 4 g de polisorbato 80 (Tween 80), 8 g de Brij 35,
12 g de aroma de menta, 0,8 g de aspartamo. Se añade a la solución
clara 28 g de hidroxi propil metil celulosa, agitando lentamente.
Una vez que se ha disuelto completamente el polímero, se enfría la
solución a temperatura ambiente y se aplica sobre un soporte, en
las mismas condiciones de recubrimiento y secado que el ejemplo 1.
La lámina seca se divide también en trozos de tamaño y forma
adecuados.
\vskip1.000000\baselineskip
Ejemplo
3
En una mezcla de 250 g de agua y 250 g de etanol
a 60ºC se disuelven agitando constantemente 15 g de sorbita, 2,5 g
de glicerina, 2,5 g de propilen glicol, 2,5 g de Brij 35, 2,5 g de
Poloxamer 407, 3,5 g de Cremophor RH 40, 9 de aroma de hierba buena,
0,5 g de aspartamo. Se añade a la solución clara 75 g de hidroxi
propil celulosa, agitando lentamente y de forma constante. Se
recubre nuevamente con la solución clara y se seca en las
condiciones descritas en el ejemplo 1. La lámina seca se divide
también en trozos de tamaño y forma adecuados.
\vskip1.000000\baselineskip
Ejemplo
4
En una solución de 600 ml de agua y 2800 ml de
etanol se disuelven agitando a temperatura ambiente, 3,6 g de
Tween 80, 3,6 g de glicerina, 39 g de mentol y 171 g de Kollidon
30. Se añade entonces lentamente y en porciones 247,5 g de hidroxi
propil metil celulosa, a 50-55ºC y se agita hasta
la disolución completa. Una vez que se ha enfriado la mezcla, se
añade sucesivamente, agitando, 90 g de aroma de menta limón,
seguido de una solución/suspensión de 27,13 g de aspartamo, 18 g de
ácido cítrico y 0,17 g de FD&C yellow #5 en 120 ml de agua. La
solución clara se aplica y se seca en las mismas condiciones que en
el ejemplo 1; la lámina seca se divide en trozos de tamaño y forma
adecuados para la aplicación prevista.
Claims (18)
-
\global\parskip0.950000\baselineskip
1. Lámina mucoadhesiva para la administración oral, que contiene por lo menos un polímero soluble o dispersable en agua, por lo menos un polialcohol y un principio activo farmacéutico o cosmético, caracterizada porque contiene hidroxi propil metil celulosa así como una combinación de dos o más sustancias tensioactivas, no iónicas. - 2. Lámina mucoadhesiva según la reivindicación 1, caracterizada porque la concentración total de las sustancias tensioactivas es de 0,1 a 5% en peso.
- 3. Lámina mucoadhesiva según la reivindicación 1 o 2, caracterizada porque la combinación de sustancias tensioactivas no iónicas contiene como primer componente un éster del ácido graso de polietoxi sorbitan o un copolímero en bloque de \alpha-hidro-\omega-hidroxipoli(etoxi)-poli(propoxi)-poli (etoxi) y, como segundo componente un polietoxi alquil éter o un derivado de aceite de polietoxi ricino.
- 4. Lámina mucoadhesiva según la reivindicación 3, caracterizada porque el valor HLB de los ésteres del ácido graso polietoxi sorbitan está comprendido entre 10 y 20, de preferencia, en particular, entre 13 y 17.
- 5. Lámina mucoadhesiva según la reivindicación 1 o 2, caracterizada porque el polietoxi alquil éter posee un valor HLB comprendido entre 10 y 20, de preferencia, no inferior a 15.
- 6. Lámina mucoadhesiva según una de las reivindicaciones 3 a 5, caracterizada porque el derivado del aceite de polietoxi ricino posee un valor HLB comprendido entre 14 y 16.
- 7. Lámina mucoadhesiva según una de las reivindicaciones 3 a 6, caracterizada porque el copolímero en bloque de \alpha-hidro-\omega-hidroxipoli(etoxi)-poli(propoxi)-poli(etoxi)contiene por lo menos 35, de preferencia, por lo menos 50 unidades propoxi.
- 8. Lámina mucoadhesiva según una de las reivindicaciones 3 a 7, caracterizada porque contiene una mezcla tensioactiva binaria, constituida por los componentes primero y segundo mencionados, manteniéndose la proporción entre el primer componente y el segundo entre 1:10 y 1:1, de preferencia entre 1:5 y 1:3.
- 9. Lámina mucoadhesiva según una de las reivindicaciones anteriores, caracterizada porque la concentración de polialcohol en la masa seca de la lámina es de 0,1 a 5% en peso.
- 10. Lámina mucoadhesiva según una de las reivindicaciones anteriores, caracterizada porque el/los polialcohol/es se eligen dentro del grupo formado por glicerina, polietilen glicol, propilen glicol, monoéster de glicerina con ácidos grasos.
- 11. Lámina mucoadhesiva según una de las reivindicaciones anteriores, caracterizada porque la concentración del polímero soluble o dispersable en agua está comprendida entre 20 y 75% en peso.
- 12. Lámina mucoadhesiva según una de las reivindicaciones anteriores, caracterizada porque el contenido de principio activo farmacéutico o cosmético en la lámina oscila entre 0,01 y 20% en peso.
- 13. Lámina mucoadhesiva según una de las reivindicaciones anteriores, caracterizada porque posee un grosor inferior a 70 \mum.
- 14. Lámina mucoadhesiva según una de las reivindicaciones anteriores, caracterizada porque contiene un principio activo terapéutico elegido dentro del grupo formado por hipnóticos, sedativos, antiepilépticos, aminas analépticas, psico-neurotrópicos, neurobloqueantes musculares, antiespasmódicos, antihistamínicos, antialérgicos, cardiotónicos, antiarrítmicos, diuréticos, hipotensivos, vasopresores, antitusivos, expectorantes, hormona tiroidea, hormona sexual, antidiabéticos, principios activos antitumorales, antibióticos así como quimioterapéuticos y narcóticos.
- 15. Lámina mucoadhesiva según una de las reivindicaciones anteriores, caracterizada porque contiene un principio activo cosmético del grupo de los refrescantes de aliento, principios activos para el cuidado dental y principios activos para la higiene bucal.
- 16. Lámina mucoadhesiva según una de las reivindicaciones anteriores, caracterizada porque contiene sustancias gustativas, aromáticas o materias olorosas.
- 17. Lámina mucoadhesiva según una de las reivindicaciones anteriores, caracterizada porque contiene 1-mentol, aroma de menta-limón, aroma de menta, aroma de hierba buena, aspartamo y/o caramelo.
- 18. Procedimiento para la obtención de una lámina mucoadhesiva, soluble en agua según una de las reivindicaciones anteriores, que comprende las siguientes etapas:
- a)
- Disolver un polialcohol, sustancias tensioactivas no-iónicas, así como todos los demás componentes, con excepción del/de los polímero(s) soluble(s) o dispersable(s) en agua, en un disolvente compatible;
\global\parskip1.000000\baselineskip
- b)
- Una vez formada una solución clara, añadir el/los polímero(s) mencionado(s), agitando hasta que se forme una solución;
- c)
- Aplicar la solución sobre un material de soporte, que presenta una tensión superficial que impide la absorción de la solución;
- d)
- Secar la solución, formándose entonces una lámina.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19646392 | 1996-11-11 | ||
| DE19646392A DE19646392A1 (de) | 1996-11-11 | 1996-11-11 | Zubereitung zur Anwendung in der Mundhöhle mit einer an der Schleimhaut haftklebenden, Pharmazeutika oder Kosmetika zur dosierten Abgabe enthaltenden Schicht |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2322699T3 true ES2322699T3 (es) | 2009-06-25 |
Family
ID=7811214
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES03014213T Expired - Lifetime ES2322699T3 (es) | 1996-11-11 | 1997-10-22 | Lamina o capa soluble en agua, que presenta humectabilidad inmediata para la aplicacion oral. |
| ES97911237T Expired - Lifetime ES2206692T3 (es) | 1996-11-11 | 1997-10-22 | Pelicula soluble en agua o capa soluble en agua de humectabilidad inmediata para aplicacion oral. |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES97911237T Expired - Lifetime ES2206692T3 (es) | 1996-11-11 | 1997-10-22 | Pelicula soluble en agua o capa soluble en agua de humectabilidad inmediata para aplicacion oral. |
Country Status (25)
| Country | Link |
|---|---|
| US (8) | US5948430A (es) |
| EP (2) | EP0936905B1 (es) |
| JP (3) | JP4063331B2 (es) |
| KR (2) | KR100569847B1 (es) |
| AT (2) | ATE422157T1 (es) |
| AU (1) | AU739698B2 (es) |
| CA (1) | CA2265651C (es) |
| CZ (1) | CZ297354B6 (es) |
| DE (4) | DE19646392A1 (es) |
| DK (2) | DK1362584T3 (es) |
| ES (2) | ES2322699T3 (es) |
| HU (2) | HU228464B1 (es) |
| ID (1) | ID22526A (es) |
| IL (2) | IL129819A0 (es) |
| MY (1) | MY125548A (es) |
| NO (2) | NO325073B1 (es) |
| NZ (1) | NZ335063A (es) |
| PL (1) | PL190376B1 (es) |
| PT (2) | PT1362584E (es) |
| SI (1) | SI0936905T1 (es) |
| SK (2) | SK285100B6 (es) |
| TR (1) | TR199901633T2 (es) |
| TW (2) | TWI250029B (es) |
| WO (1) | WO1998020862A1 (es) |
| ZA (1) | ZA9710093B (es) |
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-
1996
- 1996-11-11 DE DE19646392A patent/DE19646392A1/de not_active Withdrawn
-
1997
- 1997-08-01 US US08/904,607 patent/US5948430A/en not_active Expired - Lifetime
- 1997-10-21 TW TW092105140A patent/TWI250029B/zh not_active IP Right Cessation
- 1997-10-21 TW TW086115552A patent/TW533083B/zh not_active IP Right Cessation
- 1997-10-22 HU HU9904207A patent/HU228464B1/hu not_active IP Right Cessation
- 1997-10-22 SK SK622-99A patent/SK285100B6/sk not_active IP Right Cessation
- 1997-10-22 DE DE59712993T patent/DE59712993D1/de not_active Expired - Lifetime
- 1997-10-22 DK DK03014213T patent/DK1362584T3/da active
- 1997-10-22 SK SK5041-2005A patent/SK285999B6/sk not_active IP Right Cessation
- 1997-10-22 KR KR1020057014063A patent/KR100569847B1/ko not_active Expired - Fee Related
- 1997-10-22 IL IL12981997A patent/IL129819A0/xx not_active IP Right Cessation
- 1997-10-22 DE DE29724755U patent/DE29724755U1/de not_active Expired - Lifetime
- 1997-10-22 WO PCT/EP1997/005820 patent/WO1998020862A1/de not_active Ceased
- 1997-10-22 PL PL97333677A patent/PL190376B1/pl unknown
- 1997-10-22 HU HU0500666A patent/HU230022B1/hu unknown
- 1997-10-22 AU AU48682/97A patent/AU739698B2/en not_active Ceased
- 1997-10-22 ID IDW990297A patent/ID22526A/id unknown
- 1997-10-22 JP JP52208898A patent/JP4063331B2/ja not_active Expired - Lifetime
- 1997-10-22 PT PT03014213T patent/PT1362584E/pt unknown
- 1997-10-22 ES ES03014213T patent/ES2322699T3/es not_active Expired - Lifetime
- 1997-10-22 CZ CZ0164799A patent/CZ297354B6/cs not_active IP Right Cessation
- 1997-10-22 EP EP97911237A patent/EP0936905B1/de not_active Expired - Lifetime
- 1997-10-22 SI SI9730590T patent/SI0936905T1/xx unknown
- 1997-10-22 PT PT97911237T patent/PT936905E/pt unknown
- 1997-10-22 TR TR1999/01633T patent/TR199901633T2/xx unknown
- 1997-10-22 CA CA002265651A patent/CA2265651C/en not_active Expired - Lifetime
- 1997-10-22 AT AT03014213T patent/ATE422157T1/de active
- 1997-10-22 ES ES97911237T patent/ES2206692T3/es not_active Expired - Lifetime
- 1997-10-22 DE DE59710670T patent/DE59710670D1/de not_active Expired - Lifetime
- 1997-10-22 DK DK97911237T patent/DK0936905T3/da active
- 1997-10-22 NZ NZ335063A patent/NZ335063A/xx not_active IP Right Cessation
- 1997-10-22 AT AT97911237T patent/ATE247954T1/de active
- 1997-10-22 KR KR1019997004145A patent/KR100604995B1/ko not_active Expired - Fee Related
- 1997-10-22 EP EP03014213A patent/EP1362584B1/de not_active Expired - Lifetime
- 1997-11-10 MY MYPI97005325A patent/MY125548A/en unknown
- 1997-11-10 ZA ZA9710093A patent/ZA9710093B/xx unknown
-
1999
- 1999-04-06 US US09/287,181 patent/US6177096B1/en not_active Expired - Lifetime
- 1999-04-22 NO NO19991921A patent/NO325073B1/no not_active IP Right Cessation
-
2000
- 2000-08-02 US US09/630,562 patent/US6284264B1/en not_active Expired - Lifetime
-
2001
- 2001-08-13 US US09/927,327 patent/US20010046511A1/en not_active Abandoned
-
2002
- 2002-05-14 US US10/143,962 patent/US6709671B2/en not_active Expired - Lifetime
- 2002-06-05 US US10/161,670 patent/US6592887B2/en not_active Expired - Lifetime
-
2004
- 2004-02-05 US US10/771,388 patent/US8865202B2/en not_active Expired - Fee Related
-
2005
- 2005-06-01 JP JP2005161714A patent/JP4817721B2/ja not_active Expired - Fee Related
- 2005-07-06 NO NO20053307A patent/NO20053307D0/no not_active Application Discontinuation
- 2005-07-31 IL IL169984A patent/IL169984A/en not_active IP Right Cessation
-
2009
- 2009-09-28 JP JP2009222637A patent/JP2010006832A/ja active Pending
-
2011
- 2011-11-09 US US13/292,590 patent/US20120114705A1/en not_active Abandoned
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