There are several meds out there that are in the same class of drugs, or in different classes of drugs. For example, Zoloft is an SSRI (seratonin) while my fav, Cymbalta, is a SNRI (seratonin and norepinephrin). And there are others out there too. If one does not work for you, dont give up, change to another one. This takes time, I won't mislead you, time to get on, see if it works, get off, try another one...but when you find one your brain likes, your life will be peaceful, you will be able to stay motivated and happy, and you will enjoy life as a "normal" person, not a zombie.