No, antidepressants do not change your personality, in fact, when taken correctly and when they are working exactly how they are supposed to, antidepressants do nothing but help with the depression. Some people may experience some apathy or loss of emotions but even that is only limited to a certain type of antidepressants and even in these cases, if something like that happens, the dose can be lowered, which can help with the symptoms almost right away.