SPL Set ID: 5c66f3b9-6e04-47ab-8d94-21e89ceec154

Lidocaine patch 5% is comprised of an adhesive material containing 5% lidocaine, USP, which is applied to a pigmented polyethylene/polyester backing film printed with brown ink and covered with a silicone coated polyester film release liner. The release liner is removed prior to application to the skin. The size of the patch is 10 cm × 14 cm. Lidocaine is chemically designated as 2-(Diethylamino)-2’,6’-acetoxylidide, has an octanol: water partition ratio of 43 at pH 7.4, and has the following structure: Each adhesive patch contains 140 mg of lidocaine, USP (50 mg per gram adhesive) in a polyisobutylene adhesive matrix. Lidocaine Structural Formula