USP <661> compared with USP <661.1> and USP <661.2>

Ahead of the upcoming changes to USP <661>, Smithers Rapra have also provided a downloadable comparison chart on the differences between USP <661> and USP <661.1> and <661.2>. You can download a copy for free below.

Smithers Rapra expert Michael Crease has provided a comprehensive overview of the changes coming into play from 1 May 2020. You can read the full article here.