A simple technique has been developed to encapsulate lidocaine, a common painkiller, or collagen in the tiny needles attached to an adhesive patch. When applied to the skin, the microneedles deliver the drug or collagen rapidly into the skin without any discomfort to the user.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/GhoAtjgB7c8/140905090221.htm
Novel microneedle patch for faster, effective delivery of painkiller, collagen
5 September 2014
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