List of top Pharmaceutical Sciences Questions on Clinical Pharmacy asked in NIPER JEE

The observations of a study on drug hydrolysis were plotted as the logarithm of the amount of drug remaining (Y-axis) against time (X-axis) and found to be linear. What might be the correct inference?
Cilostazol, a drug used in the treatment of intermittent claudication, inhibits which phosphodiesterase enzyme for its clinical effect?
Which international clinical trial is launched by WHO and partners to help find an effective treatment for COVID-19?