Do antidepressants help?

I was interested in following question, do antidepressants really help?
Many people take antidepressants to treat depression, but they dont know what consequences it can cause. For some people it can help, but for some people it can cause addiction. They are trying to change the medications, but it also harmful. I found some useful information about this type of medications in wikipedia and was horrified. Most of antidepressants are narcotic medications!
They are divided into antidepressants & anti-anxiety (for panic disorders). On pharmaexperts.info i found some interesting facts about antidepressant drugs such as xanax (misspelling: zanax or xanex), zyban, paxil & other. Buy Celexa Antidepressant