NHI Drug Price Listing and Release of a selective P2X3 receptor antagonist for the treatment of cough "Lyfnua® Tablet 45 mg" April 20, 2022 Please see the PDF file below for details. NHI Drug Price Listing and Release of a selective P2X3 receptor antagonist for the treatment of cough "Lyfnua® Tablet 45 mg" [ 262.8 KB ] Previous Article Next Article