Throughout my life I've done some extensive research regarding anti depressants and their correlation to weight gain and hormone alteration. What I've found is significant alteration of both leading to a myriad of health disorders, though usually relating to excess weight gain in the form of fat and obviously higher cholesterol.
It has been officially noted for quite some time now that anti depressants in all forms (though it should be mentioned specifically in out-dated tricyclics), cause weight gain. However, this was after much public concern and it's no surprise that that manufacturers were slow to publish their own findings on the matter. My own doctor did not know of any significant weight gain possibilities when questioned recently - this is after literally tens of thousands of anti depressant users complaining the world over. As always, the manufacturers place small warnings under 'possible adverse reactions'.
I now believe the extent to which we know how these chemicals operate in our bodies is grossly lacking. It is openly admitted that even the suppliers and scientists creating and perfecting their products DO NOT KNOW HOW THEY WORK, just that they do, indeed, work.
Now to my assumptions on gynecomastia and anti depressants. My personal experience is to do with SSRI's - namely fluoxetine sold under the popular brand name Prozac. We now know that much of the weight gain many exerperience as a result of ingesting this chemical is due to thyroid and adrenal hormonal alteration. We don't know why the hormone levels are altered (I have my own theories on the matter), but we do know that they are altered in a significant way. Almost every action/modification of such, in our body (such as altering our serotonin levels), has a massive chain reaction leading to many seemingly unrelated and unknown consequences. I won't go into detail regarding estradiol, testosterone, LH, FSH, HGH and estrogen; suffice it so say that my humble research has led me to the conclusion that they ARE altered (to extremes in some cases), as a result of simply taking this seemingly 'selective' serotonin reuptake inhibitor. To a young developing body, such as in my case, it was enough to throw out my testosterone and estradiol levels to an extent which led to minor breast development and substantial weight gain (further reinforcing this synergistic reaction).
I'd like to open the floor to anyone else out there that relates. What age did you begin taking anti depressants? What period did you continue until? Did you notice significant changes before, during, or after, particularly in regards to breast development, weight gain, unusually sparce acne and body hair, delayed pubertal onset, or otherwise 'less masculine' or 'more feminine' traits?
I have also considered the link between having gynecomastia and this subsequently causing depression.