The pharmaceutical industry is a tremendously profitable one, as anyone who reads the business pages of their newspaper can see. Although it can take years to develop a new drug and bring it to market, the profits obtained from a breakthrough drug can be staggering. Last year Merck sold about $2.5 billion worth of Vioxx, and Pfizer sold about $1.3 billion worth of Bextra. The profits are huge, but so are the losses if a problem should develop with a pharmaceutical product. Pfizer voluntarily withdrew the popular anti-inflammatory drug Bextra from the market last month, and their stock has suffered from both the loss of sales and the potential for a large number of product liability lawsuits. Pfizer may have to endure a double whammy this year as the FDA announced that they are investigating reports that the impotence drug Viagra may be linked to cases of blindness in male users. Cialis and Levitra were also mentioned in the report, although most of the cases involved the use of Viagra.

The FDA reports shouldn