Letter to FDA: 4-Aminophenol Share page: CHPA recognizes the need for modernization of USP monographs. CHPA member companies are dedicated to fulfilling their commitment outlined in the letter to this Planning Committee on February 2, 2011. Download Document Issues: OTC Medicines Acetaminophen Related Posts Regulation of OTC Medicines Press Releases and Statements CHPA Congratulates Dr. Doug Bierer as First Recipient of the William Cooley Regulatory & Scientific Affairs Career Achievement Award Sep 18, 2024 Press Releases and Statements Health In Hand Foundation Announces 2024 U.S. Self-Care Marketing Awards Finalists Sep 9, 2024