Bitter Pills:Medicines & The Third World Poor | Page 115

remove their product from the Third World market. The problems are illustrated by two chemically-related painkillers, whose use has recently either been controlled or completely stopped in a number of developed countries. By contrast, they continued to be widely marketed in Third World countries for over-the-counter sale, with no warnings of the dangers. AMIDOPYRINE For over 30 years amidopyrine has been known to cause agranulocytosis. This fatal blood disease kills by destroying the body's protective mechanism against infection - the white blood cells. As early as 1938 sales in the US were restricted to a doctor's prescription. In 1963 in response to the consensus of medical opinion, the drug was voluntarily withdrawn in Britain by one of its leading Swiss producers, today's Ciba-Geigy, (Ciba and Geigy merged in 1970).(75) Amidopyrine is only one of a number of drugs, such as chloramphenicol, that can cause similar fatal toxic reactions. (76) But whereas chloramphenicol is an inexpensive life-saving drug, invaluable in typhoid epidemics, not only does amidopyrine not save lives, but it offers few advantages over other 'safer' painkillers. When the drug also came under suspicion of causing cancer, the Swiss drug regulatory authorities recommended its complete withdrawal. (77) In 1977 two Swiss manufacturers, Ciba-Geigy (which marketed four amidopyrine-based products) and Sandoz, with two, announced their intention to remove amidopyrine from all their formulations by the end of the year. (78) They were to be reformulated with prophyRhenazone, a chemically-related drug. Three years later, however, Ciba products containing amidopyrine were still being sold under the brand-names Cibalgin and Spasmo-Cibalgin in ten developing countries, and Portugal. In only one case was any warning given about the risk of fatal agranulocytosis. (79) The drug was still being used for minor pains including "painful conditions of all kinds e.g. headache, toothache, feverish colds, chills and influenza".<80) In December 1979 all six Ciba and Sandoz formulations were on sale over the counter in Mexico. (8I) Ciba explain that they "did not think that the substitution of propyphenazone was urgent or demanded a product recall". (82) The reason for withdrawing amidopyrine was ostensibly the cancer risk, not agranulocytosis (which had been known abou t for so long). Consequently Ciba decided "to give priority to northern or non- tropical countries where nitrites are found in higher concentrations" because of the greater consumption of processed foods "such as sausages and hamburgers, but also beer". (83) But it was not just a question of the old stocks that remained on pharmacy shelves in developing countries. As The Lancet reported in November 1981, "There is evidence that Ciba-Geigy has continued to manufacture preparations containing amidopyrine and that they have been selling off old stocks of preparations containing amidopyrine even after registering the new formulations". (84) Mexican trade statistics for 1978 show that Ciba imported 8,500 kilos of amidopyrine into the country, with 80% of the supply coming from Switzerland.(85) 108