Core Viewpoint - The recent monitoring data from the Chinese Center for Disease Control and Prevention indicates a significant rise in influenza cases, with the percentage of influenza-like cases reaching 6.5%, signaling a rapid increase in flu activity across the country. This surge has led to a dramatic increase in sales of antiviral medications, particularly oseltamivir and baloxavir marboxil, with sales of oseltamivir increasing by 237% in one week and baloxavir marboxil rising by 180% [1][4][8]. Group 1: Market Dynamics - The sales of oseltamivir capsules in the domestic hospital market are projected to reach nearly 1.9 billion yuan in 2024, with Dongyang Sunshine Pharmaceutical holding a market share of 56.66%, dominating the domestic hospital market [4]. - Following the expiration of Roche's patent in 2016, numerous domestic generic versions of oseltamivir have emerged, with 138 related drug approvals currently available, indicating increased competition for Dongyang Sunshine Pharmaceutical [7]. - Baloxavir marboxil, developed by Roche, has seen its sales in the domestic market exceed 400 million yuan in 2023, with a projected sales figure of nearly 1.4 billion yuan in 2024, reflecting a year-on-year growth of 216.54% [8]. Group 2: Innovation and New Entrants - New domestic antiviral drugs are emerging, with Qingfeng Pharmaceutical's GP681, a first-class new drug for influenza, approved for the market in March 2025, providing a new treatment option for influenza patients aged 12 and older [13]. - The launch of innovative drugs such as Amlodipine tablets by Zhongsheng Pharmaceutical in May 2025 marks a significant breakthrough in the antiviral drug development field in China, potentially allowing the country to secure a position in the global influenza market [15]. - The inclusion of Jichuan Pharmaceutical's Jin Tong Bei and Ji Ke Shu in the first batch of the Jiangsu Province Innovation Drug and Device Product Directory highlights the recognition of their advanced technology and clinical value, enhancing their competitive edge in the antiviral market [21]. Group 3: Overall Market Trends - The current landscape of China's antiviral drug market is characterized by a combination of steady growth in traditional products and explosive growth in innovative products, with Dongyang Sunshine Pharmaceutical leading the market with oseltamivir, while Roche's baloxavir marboxil rapidly gains traction due to its unique advantages [22].