About Authors:
Shakya Pragati*, Khwaja Sadiya,
Asst. Professor, Integral University,
Lucknow,
U.P, India
1.ABSTRACT
Transdermal delivery of medications was foreshadowed in earlier eras by the use of certain plasters and ointments. The mustard plaster, applied as a home remedy for severe chest congestion, may be considered an example. (This author remembers his mother making mustard plasters for members of the family.) Powdered mustard seed (Brassica nigra) was mixed with warm water, and the resulting paste was spread on a strip of flannel, which was applied to the patient’s chest with a cloth binding wrapped around the body to hold the plaster in place. The moisture and body warmth activated an enzyme (myrosin) in the mustard that hydrolyzed a glycoside (sinigrin), causing the release of the pungent active ingredient allyl isothio-cyanate (CH2=CHCH2NCS) (7). This substance possesses the qualifications listed above for transdermal absorption. A transdermal patch or skin patch is a medicated adhesive patch that is placed on the skin to deliver a specific dose of medication through the skin and into the bloodstream.
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