The aim of this report was to study the reciprocal exchange of information within the whole supply chain in the structure of the Brazilian pharmaceutical business environment. The first step was to search previous studies in the literature, that could describe all the framework of the logistics processes and whether information played a significant role in them. In this report, the supply chain management concepts were studied, including relationships between its members and several aspects of performance measurements proposed by scholars. Performance indicators which deal with both parties, suppliers and customers, are not common. As an alternative, this report has chosen a generic measure called DSCC (Degree of supply chain coupling) which calculates how information flows throughout the supply chain. A check list has been applied to two important pharmaceutical companies. The aswers obtained not only reveal how these companies interact in both directions of the supply chain but also suggest other future studies about logistics processes in the Brazilian phamaceutical sector.