Is a uniform definition of a counterfeit medicine necessary?

Yes, it is necessary if we want to understand and combat the problem.

The absence of a universally accepted definition makes information exchange between countries very difficult, limits the ability to understand the true extent of the problem at global level, and hinders the development of global strategies to combat the problem. In order to address this issue the World Health Organization (WHO) had formulated a definition already in 1992. Discussions on further improving this definition for legal use have continued under the IMPACT taskforce.