Razadyne

According the FDA "two randomized placebo controlled trials of 2 years duration in subjects with mild cognitive impairment (MCI), a total of 13 subjects on Razadyne(n=1026) and 1 subject on placebo (n=1022) died." http://www.drugs.com/pro/razadyne.html
My question is if so many more people died while on these mind drugs---why do we keep using them on the elderly?
Insightcaregivers must be aware of the dangers of these drugs period, not merely concerned with how these drugs are administered.
klcouncil