This week, the South African cabinet approved a plan to distribute free antiretroviral drugs as soon as feasible, and the country's generic drug manufacturers are gearing up to produce enough of the low-cost drugs for the millions who will eventually receive the once-unaffordable treatment...most people close to the industry say that with intense public pressure to keep drug costs low, profit margins will be thin...But...many companies feel a social responsibility and are worried about consumers simply disappearing. [refers to Aspen Pharmacare, Ranbaxy Laboratories, Adcock Ingram (part of Tiger Brands), Cipla]