Full form ICH Guidelines is The International Council for Harmonization. it is Requirements for Pharmaceuticals for Human Use (ICH).
Aims of ICH is provide uniform standards for technical requirements for pharmaceuticals for human use. They are developed by regulatory and pharma industry authorities. The purpose of ICH guidelines is to ensure safe, effective and high-quality medicines are developed and registered efficiently.

The ICH topics are divided into the four categories below and ICH topic codes are assigned according to these categories.