What are the guidelines followed by pharmaceutical companies and where you can download?

Pharmaceutical companies follow guidelines established by regulatory bodies such as the FDA in the U.S. and EMA in Europe, which cover areas like clinical trials, manufacturing practices, labeling, and post-marketing surveillance. These guidelines ensure safety, efficacy, and quality in drug development and marketing. You can typically download these guidelines directly from the official websites of these regulatory agencies, such as the FDA (fda.gov) or EMA (ema.europa.eu). Additionally, the International Conference on Harmonisation (ICH) provides guidelines that can be accessed at ich.org.