theoldsole
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Whoops! forgot the link to the study about topical delivery in rabbits: http://www.aapsj.org/view.asp?art=aapsj060318
I agree that the youtube video is probably not talking about a topical application, that was just the first thing I saw in a quick search trying to see if DIY liopsomal encapsulation was possible. The study mentions the following a method of topical delivery of cetirizine, but has no info on their manufacture that I can see.
So it seems that topical delivery is superior (in rabbits anyway) by encapsulating the cetirizine in HPC (which is an egg lechtin) I see available here http://www.sigmaaldrich.com/catalog/product/SIGMA/P4139?lang=en®ion=US. They also say they mix it with Glaxal Base which is here for pretty cheap as well http://www.drugstore.com/glaxal-base-moisturizing-cream/qxp220701.
Glaxal base was less effective in suppressing histamine response (which i'm going to assume correlates the effectiveness of delivery) compared to HPC but it's alot cheaper. I think i'm going to buy some and mix it with cetirizine solute to see if it works. Anybody want to help me investigate how to prepare some cetirizine encapsulated in L-α-phosphatidylcholine hydrogenate? I'm alot more inclined to buy some and experiment if I had any idea how to prepare it. Thoughts?
I agree that the youtube video is probably not talking about a topical application, that was just the first thing I saw in a quick search trying to see if DIY liopsomal encapsulation was possible. The study mentions the following a method of topical delivery of cetirizine, but has no info on their manufacture that I can see.
Cetirizine was incorporated into small unilamellar vesicles (SUV) and multilamellar vesicles (MLV) prepared using L-α-phosphatidylcholine hydrogenated (HPC), and into Glaxal Base (GB) as the control.
So it seems that topical delivery is superior (in rabbits anyway) by encapsulating the cetirizine in HPC (which is an egg lechtin) I see available here http://www.sigmaaldrich.com/catalog/product/SIGMA/P4139?lang=en®ion=US. They also say they mix it with Glaxal Base which is here for pretty cheap as well http://www.drugstore.com/glaxal-base-moisturizing-cream/qxp220701.
Glaxal base was less effective in suppressing histamine response (which i'm going to assume correlates the effectiveness of delivery) compared to HPC but it's alot cheaper. I think i'm going to buy some and mix it with cetirizine solute to see if it works. Anybody want to help me investigate how to prepare some cetirizine encapsulated in L-α-phosphatidylcholine hydrogenate? I'm alot more inclined to buy some and experiment if I had any idea how to prepare it. Thoughts?