In a 6-month, double-blind, placebo-controlled study, 100 to 150 mg/d
indomethacin appeared to protect mild to moderately impaired Alzheimer
's disease patients from the degree of cognitive decline exhibited by
a well-matched, placebo-treated group. Over a battery of cognitive tes
ts, indomethacin patients improved 1.3% (+/-1.8%), whereas placebo pat
ients declined 8.4% (+/-2.3%)-a significant difference (p < 0.003). Ca
veats include adverse reactions to indomethacin and the limited scale
of the trial.