SPL Set ID: 5c232a94-0842-4efc-98a6-9d23e3b15a76

Scopolamine transdermal system is designed for continuous release of scopolamine following application to an area of intact skin on the head, behind the ear. Each system contains 1.28 mg of scopolamine base. Scopolamine is (9-methyl-3-oxa-9-azatricyclo[3.3.1.0 2,4 ]nonan-7-yl) 3-hydroxy-2-phenylpropanoate. The molecular formula is C 17 H 21 NO 4 and its structural formula is: Scopolamine has a molecular weight of 303.35 and a pKa of 7.55 to 7.81. The scopolamine transdermal system is a circular, 0.1 mm thick, 2.13 cm 2 film with two layers. Proceeding from the visible surface towards the surface attached to the skin, these layers are: (1) a backing layer composed of a tan colored, pigmented, flexible film consisting of a polyethylene outer layer and a metalized polyester inner layer; (2) an adhesive matrix of the drug substance scopolamine, acrylic adhesive solution, isopropyl myristate, and oleyl alcohol. A release liner which protects the adhesive matrix layer during storage should be removed immediately prior to application. Cross section of the system: 1 1