Group 1 - 康哲药业 has signed an exclusive distribution agreement with Teikoku Pharma USA, Inc. for the Lidoderm product, granting the company exclusive rights in mainland China for ten years starting from the first commercial sale [1] - Lidoderm is a lidocaine patch approved by the FDA in 1999 for treating postherpetic neuralgia (PHN), with clinical studies showing about 25% to 33% of patients experiencing at least 50% pain relief within 4 to 12 weeks [2] - The prevalence of PHN is significant, with estimates suggesting that approximately 4 million patients in China may be affected, particularly among older populations [3] Group 2 - Teikoku Pharma USA, Inc. is a subsidiary of Teikoku Seiyaku Co., Ltd., which has a long history in developing innovative products for pain management and other therapeutic areas [4] - The introduction of Lidoderm enhances 康哲药业's product portfolio and is expected to synergize with existing products, expanding market reach and driving growth [5] - The company aims to leverage new retail and multi-channel marketing strategies to create a comprehensive commercial ecosystem, enhancing both hospital and outpatient market penetration [5]