Viagra May Cause Heart Attack Deaths In Younger Men With No Heart Problems, Study Finds
          
            
March 14, 2000. Viagra, commonly prescribed by doctors to treat male erectile dysfunction, is turning up too  often at the scene  of heart attack  death in relatively young men. Some men may be vulnerable to heart attack after taking this drug,  made by Pfizer. That is not  known, but the drug itself is beginning  to look like more than a bystander in the deaths.      
            
              Some men who have died  after taking Viagra   were  elderly and on heart medication. But a study reported March 14 finds that  more men who have died were    under age sixty-five. Most of the deaths have occurred  within a few hours of taking the drug. Most of the men took the standard dose.  Most of the men had no reported heart problems. Although some men who died were taking nitrates as well as Viagra,  men who were not taking nitrates died at a higher rate.
            
            This  new evidence comes from  post-marketing adverse event
                reports about Viagra made to the FDA. Researchers at  Cedars-Sinai Medical Center in Los Angeles  analyzed these reports and found  that there "appears to be  a high number of deaths and serious
                cardiovascular events associated with the use of Viagra." They presented the study  March 14 at the meeting of the American College of
              Cardiologists in Anaheim, CA. 
            In an analysis of 1,473 major adverse events recorded in these reports about Viagra  to the FDA,  522 people died, most of them from  cardiovascular causes.
                According to the study's senior author, Dr. Kaul, the majority of deaths were associated with standard Viagra
                dosages (70 percent of the deaths were associated with the 50 mg dose). The deaths were  due to cardiovascular causes
                and appeared to be clustered around the time of dosing (two thirds of deaths in which the time from
                ingestion to death was reported, occurred within 4-5 hours of taking Viagra). The majority of deaths
                occurred in patients who were less than 65 years of age, and who had no reported cardiac risk factors. 
            
             The study confirmed the well-documented increased risk with combined use of nitrates and Viagra. Of 90   patients who suffered major heart events  while taking  Viagra on top of nitrates,  death occurred in about 68 percent, and when myocardial infarction was counted,  the number of major cardiovascular events in that group rose to  88 percent.  
            However, the study found that  most deaths (88 percent)
                actually occurred in patients who were not taking nitrates, leading investigators to speculate whether there
                are some susceptible individuals who don't need nitrates to unmask the harmful effects of Viagra.