The discovery that many people with life problems or occasional bad moods would willingly dose themselves with antidepressants sailed pharma through the 2000s. A good chunk of pharma's $4.5 billion direct-to-consumer advertising has been devoted to convincing people they don't have problems with their job, the economy and their family, they have depression. Especially because depression can't be diagnosed from a blood test.
Unfortunately, three things dried up the depression gravy train for pharma. Blockbusters went off patent and generics took off, antidepressants were linked with gory and unpredictable violence, especially in young users, and they didn't even work, according to medical articles.
That's when pharma began debuting the concept of "treatment resistant depression." It wasn't that their drugs didn't work (or you didn't have depression in the first place), you had "treatment resistant depression." Your first expensive and dangerous drug needed to be coupled with more expensive and dangerous drugs because monotherapy, one drug alone, wasn't doing the trick.
You've got to admire pharma's audacity with this upsell strategy. Adding drugs to your treatment resistant depression triples its take, patients don't know which drug is working so they'll take all of them and the defective drugs are exonerated (because the problem is you).

Now pharma has a new whisper campaign to keep the antidepressant boat afloat. Your depression is "progressive." Once upon a time, when depression was neither seasonal, atypical, bipolar or treatment resistant, it was considered to be a self-limiting disease. In fact, just about the only good thing you could say about depression was it wouldn't last forever.
But now, pharma is giving depression the don't-wait scare treatment like coronary events (statins), asthma attacks ("controller" drugs) and thinning bones (Sally Field). If you don't hurry and take medication, your depression will get worse!
"Depressive episodes become more easily triggered over time," floats an article on the physician website Medscape (flanked by ads for the antidepressant Pristiq). "As the number of major depressive episodes increase, the risk for subsequent episodes is predicted more from the number of prior episodes and less from the occurrence of a recent life stress." The article, unabashedly titled "Neurobiology of Depression: Major Depressive Disorder as a Progressive Illness," is written by Vladimir Maletic, who happens to have served on Eli Lilly's Speaker's Bureau, says the disclosure information, and whose co-authors are each employees and/or Lilly shareholders.
Before direct-to-consumer advertising, the health care system was devoted to preventing over-treatment and assuring patients they were probably okay. Who remembers, "Take two aspirin and call me in the morning"? Now patients are assured they probably aren't okay but probably have a progressive disease. Luckily, their disease can be treated with progressive prescriptions from pharma.
Mark Hyman, MD: Why Antidepressants Don't Work for Treating Depression
Lloyd I. Sederer, MD: Depression Treatment: Treating Depression the Old-Fashioned Way
Marina Picciotto, Ph.D.: Advances in How to Think About and Treat Depression
Therese Borchard: 6 Steps Toward Freedom From Depression
Treatment-resistant depression: Explore options when depression ...
Treatment-Resistant Depression: Other Treatments for Severe Depression
Treatment-resistant depression - Wikipedia, the free encyclopedia
FDA Approves Symbyax for Treatment Resistant Depression | World of ...
New insights into treatment-resistant depression - Harvard Health ...
Mental Health America: Dealing with Treatment-resistant Depression ...
Citalopram HBR 40 mg Tablet
Tramadol HCL 50 mg Tablet 400 mg/day
Hydrochlorothiazide 12.5 mg (did not have high blood pressure before taking these medications)
Gabapentin 300 mg - 900 mg 3x/day (2700 mg/day)
Mirtazapine 45 mg tablet
Respiradone .5 mg/day
Baclofen 20 mg tablet 80 mg/day
Alieve (over the counter average 3x/day)
Alprazolam 1 mg tablet as needed to stop seizures (did not have seizures before taking these medications)
(Patient was prescribed various other medications which were discontinued ... this is the latest combination... )
rinse, lather repeat.
Big pharma does have a lot of influence on medical practice,and it is important to go in with your eyes open. They do also suppress effective "natural" treatments, but this does not mean all conventional medicine=bad and all alternative medicine=good. Diabetes can be very effectively controlled by diet , but that does not mean that you should not use insulin for an acute problem if you need it.
When you try to conduct research in terms of unquantifiable, unmeasurable DSM diagnoses, you will get whatever results your boss wants.
Look at any psychiatric study, and look at every diagnosis it cites, and check that diagnosis in the DSM, and ask how it can be distinguished from anything else. I've heard this discussion in national conventions, and the answer is to the effect, "we know it when we see it". Yet they still can't describe it, and they can't get any better than random results.
Take a look at the Wikipedia article on the Rosenhan experiment showing conclusively that psychiatric practitioners could not recognize a diagnosis, and that experiments within the last 3 years have confirmed nothing has changed.
These are behavioral issues, and neither medicine nor philosophy gets any better results than traditional witch doctors.
With all due respect to the experience of fellows like Dick Cavett, dwelling on the issue is rarely effective, nor are pills. OTOH, getting on a bike & going for a ride, working in the garden, tickling somebody, doing ALMOST ANYTHING gets wondrous results.
Then I gave up coffee and it magically dropped down to normal. What a rort.