In December, Pfizer said that a government-funded study testing whether Celebrex could prevent colon polyps instead showed that long-term use of Celebrex doubled the risk of heart attack and stroke.
He has shown a strong interest in turning the island into a giant laboratory when the switch to fuel cell vehicles begins in earnest 10 to 15 years from now, as well as in testing the safety of hydrogen gas stations, the long-term reliability of cars and the economic viability of fuel cells.
South African politicians insist that they are worried about the long-term cost and efficacy of such drugs, and fret that western drug makers may use the country as a testing ground for markets elsewhere.