Topical drug patch including microspheres
AssigneeSwansea University
InventorsZhidao Xia, Alan Marsh
Life of this patent
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Abstract
A topical drug delivery patch (1) comprising a drug delivery layer (3) including microspheres (2) encapsulating a drug, said microspheres being carried in a hydro gel. The drug delivery layer has a support layer (5) which is attached to a first face of the drug deliver layer and a releasable protective layer (4) attached to a second face of the drug delivery layer. The releasable protective layer can be peeled away do the patch can be applied to the skin to release drugs in the microspheres. The patch is particularly useful for treating skin conditions such as psoriasis and eczema.
Claims16
A topical drug delivery patch, comprising:
- a hydrogel;
- a drug delivery layer including the hydrogel and microspheres encapsulating a drug, said microspheres being carried in the hydrogel, the microspheres each formed of a solid polymer having the drug encapsulated therein;
- a support layer which is attached to a first face of the drug deliver layer;
- and
- a releasable protective layer attached to a second face of the drug delivery layer, with the releasable protective layer being removable such that in use the second face can be applied to the skin of an individual so the drug in the microspheres can be released onto the skin while the support layer forms a covering for the drug delivery layer.
Dependencies are inferred from the claim text.