PHARMACEUTICAL COMPOSITIONS COMPRISING PH-DEPENDENT DRUG COMPOUND, PH MODIFIER AND RETARDING AGENT

摘要

PROBLEM TO BE SOLVED: To provide pharmaceutical compositions including a pH-dependent drug compound and a pH modifier.SOLUTION: The pharmaceutical compositions include a pH-dependent drug compound, a pH modifier and a retarding agent, and the release of the drug from the pharmaceutical composition is completed after a maximum dissolution time of 1-4 hours.