“…In the 1990s, the Peruvian pharmaceutical sector underwent profound changes, from being a highly regulated market, with price controls and multiple barriers to entry, to a less regulated market, with prices set by the pharmaceutical companies [2] , [3] . The General Health Law 26842 enacted in 1997 [4] stated that the registration of drugs was possible with the simple presentation of an affidavit about the quality of the product and the enclosure of a free sale certificate issued by the health authority from where the product was imported; and the procedure lasted only seven days [6] , [5] . Thus, a large number of products were registered during the period 1990–2008 [2] .…”