Abstract
<jats:p>In the series of original articles is analyzed formation of pharmaceutical information market in Russia. It emerged from two sources: fragments of the Soviet system of circulation of pharmaceutical information and as result of consequences of business projects. The informational segment, being “sectoral” or “internal” for pharmaceutical market, formed over time infrastructure of production, distribution, storage and consumption of its goods. Initially considered as auxiliary one, it turned out into autonomous market with its own rules of the game, leading players and prices for services. The fourth report deals with formal rules of market of pharmaceutical information, history of achievement of agreements regarding official and marketing information about medications.</jats:p>