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Transdermal Drug Delivery System Regulatory Requirements (USA)

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<strong>Transdermal</strong> <strong>Drug</strong> <strong>Delivery</strong> <strong>System</strong>s<br />

• DOT Matrix<br />

• Two polymers in its drug in adhesive blend<br />

– an acrylic that holds high concentration of<br />

drug in microcells and a silicone that holds<br />

the patch to the skin.<br />

• Drives more drug through a smaller area<br />

• Advantage – smaller, more wearable<br />

patches e.g., estrogen patch

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