Remind your son that the list of side effects is a compilation of EVERY complaint that came up during trials. Some of those may only have occurred for a single person, but they still have to be listed.

As to Electro-Convulsive Therapy, ECT, what i remember of my sister's experience was the memory loss. and that is corroborated here:

http://www.theuniversityhospital.com/ect/effects.htm