COMPOSIZIONI FARMACEUTICHE LAMINATE TRANSDERMALI AD EFFETTO PROLUNGATO E PROCEDIMENTO PER LA LORO PREPARAZIONE

The invention relates to a transdermal laminated pharmaceutical composition (plaster) having prolonged effect, wherein one or more storing layer(s) comprising the active ingredient, an ethylene/vinyl acetate copolymer regulating layer and an adhesive layer are applied onto the carrier. The pharmaceu...

Full description

Saved in:
Bibliographic Details
Main Authors BARTA IREN, FEKETE PAL, KOVACS GABOR, PALLOS LASZLO, MAHR LAJOS
Format Patent
LanguageItalian
Published 12.09.1990
Edition5
Subjects
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
Online AccessGet full text

Cover

More Information
Summary:The invention relates to a transdermal laminated pharmaceutical composition (plaster) having prolonged effect, wherein one or more storing layer(s) comprising the active ingredient, an ethylene/vinyl acetate copolymer regulating layer and an adhesive layer are applied onto the carrier. The pharmaceutical composition is prepared by coupling a carrier comprising the active ingredient with a regulating layer consisting of an ethylene/vinyl acetate copolymer foil having a vinal acetate content of 2-40 molar %. The foil is previously irradiated in a thickness of 100-300 mu m with a high-energy irradiation in a dose of 1-15 Mrad-preferably with electrone radiation-and thereafter stretched at 80 DEG -90 DEG C. to a thickness of 2-200 mu m. The system comprising the carrier and the regulating layer is subsequently coupled with an adhesive layer.
Bibliography:Application Number: IT19870022032