HARTFORD, Conn.--(BUSINESS WIRE)--Aetna (NYSE:AET) today announced the launch of a program that waives copays for six months when members change from brand-name antidepressants Lexapro or Paxil CR to generics citalopram or paroxetine, respectively. The program is not available in all states or under all benefit plans. This class of drugs is an addition to the current portfolio of drugs included in the copay waiver program, which includes statin cholesterol reducers, proton pump inhibitor (PPI) acid reducers, and nonsedating antihistamines.