The FDA has issued a new warning for celexa (citalopram). Patients 60 years old or older should not be prescribed 20 mg or more of celexa. Studies have shown that amounts over 40 mg/day may cause significant cardiac irregular heart beats. For details see;
http://www.fda.gov/D...y/ucm269086.htm
As lexapro (escitalopram) is only diferent from celexa by a few atoms many drs. are using the same criteria for lexapro usage.