摘要:
Stretchable, occlusive backing layers for transdermal drug delivery systems are disclosed, that maintain occlusivity after stretching. The backing layers are comprised of a stretchable backing material provided with an occlusive coating comprising a styrene-isoprene-styrene block copolymer and tackifier. Also described are transdermal drug delivery systems having such backing layers, including transdermal drug delivery systems for non-steroidal anti¬ inflammatory drugs (NSAIDs), and methods of making and using such backing layers and transdermal drug delivery systems.
摘要:
The present invention provides a compound having the structure wherein A is a ring structure, with or without substitution; X1 is C or N; X2 is N, 0, or S; Y1 is H, -(alkyi), -(alkenyl), -(alkynyl), -(cycloalkyi), (haloalkyi), -(alkyl)-O-(alkyl) or -(alkyl)-(cycloalkyl); Y 2 is H, -(alkyi), -(alkenyl), -(alkynyl), -(cycloalkyi), (haloalkyi), -(alkyl)-O-(alkyl) or -(alkyl)-(cycloalkyl); Y3 is H, -(alkyi), -(alkenyl), -(alkynyl), -(cycloalkyi), (haloalkyi), -(alkyl)-O-(alkyl) or -(alkyl)-(cycloalkyl); Y 4 is H, -(alkyi), -(alkenyl), -(alkynyl), -(cycloalkyi), (haloalkyi), -(alkyl)-O-(alkyl) or -(alkyl)-(cycloalkyl); Y5 is H, -(alkyi), -(alkenyl), -(alkynyl), -(cycloalkyi), (haloalkyi), -(alkyl)-O-(alkyl) or -(alkyl)-(cycloalkyl); a and P are each present or absent and when present each is a bond.
摘要:
This invention relates to a wound dressing, particularly to a stimuli responsive wound dressing comprising a lyophilized hyaluronic acid (HA) hydrogel, and a plurality of devices embedded within said lyophilized hyaluronic acid hydrogel. Each of the plurality of devices including chitosan and hypromellose and may be formed as biofilms and/or electrospun fiber mats.
摘要:
Described herein are abuse-resistant multi-layer transdermal patches comprising opioids and opioid prodrugs having a barrier layer located between the layer containing opioid or opioid prodrug and a layer containing an opioid antagonist or opioid antagonist prodrug.
摘要:
The invention relates to a self-destructing transdermal therapeutic system (TTS), preferably in the form of a transdermal patch, comprising an active ingredient, an agent rendering the active ingredient useless, and a mechanical means for perforation. The mechanical means for perforation brings about that a mobile phase may approach the agent rendering the active ingredient useless after pulling off the TTS after use, said agent then coming in contact with the active ingredient and destroying the same in the presence of the mobile phase.
摘要:
An (10) apparatus and method for applying a beneficial agent (14b) to the skin is disclosed in one embodiment of the invention as including first and second chemical reactants (14a), each being compatible with the skin. The first and second chemical reactants (14a) react with one another to generate a (14b) beneficial agent (14b) and enhance the permeability of the skin (e.g., by generating heat). The beneficial agent (14b) may then be applied to the skin while the permeability of the skin is enhanced. In selected embodiments, the first chemical reactant (14a) includes one or more metals, or alloys thereof, that are compatible (i.e., not harmful) with the skin. Similarly, in selected embodiments, the second chemical reactant (14a) may include water. In certain embodiments, the beneficial agent generated by the first and second chemical reactants (14a) includes an antioxidant such as hydrogen.