| abstract |
(57) [Abstract] [Object] The present invention provides an oral preparation containing a cyclic GMP phosphodiesterase inhibitor, which masks unpleasant taste such as bitterness, and a method for producing the same. The present invention relates to an oral preparation comprising a cyclic GMP phosphodiesterase inhibitor having an unpleasant taste and an anionic polymer, which masks the unpleasant taste and a method for producing the same. |