if its depression.. it simply means -- there is an imbalance of certain kinds of neurotransmitters in the fluids that the nerves of your brain bathe themselves. the medications help get the right levels of neurotransmitters.. its like diabetes.. there is an embalance .. and the meds work to make a balance.. its no big deal.. see a DR. even GP's will subscribe them.. and if he/she is a good GP they will suggest u see a counselor too. (GP = General Practitioner)