This report studies the global market size of Guaifenesin (API) and especially focuses on key regions like the United States, European Union, China and other regions (Japan, Korea, India and Southeast Asia). This study presents the Guaifenesin (API) sales volume, revenue, market share and growth rate for each key company and also covers breakdown data (sales, revenue and market share) by region, type, application, and history breakdown data from 2014 to 2019, forecast to 2025.