Failing Two Antidepressants: Step Therapy Explained

If you have researched whether you might be a candidate for Spravato, you have probably run into the same phrase again and again: you need to have “failed two antidepressants.” It sounds simple, but it is one of the most misunderstood requirements in mental health care, and it is usually the single factor that decides whether your insurance will approve treatment.

The good news is that “failing” almost never means what patients fear it means. It does not mean you gave up, did something wrong, or that your depression is untreatable. In clinical and insurance terms, it means something specific and measurable. This article explains what insurers actually count, what does not count, and how to reconstruct your medication history so nothing that should qualify gets overlooked.

This is patient education, not medical advice. Your candidacy for any treatment is determined by the NeuroGlow medical team at your consultation.

The clinical definition insurers use

Spravato (esketamine) is FDA-approved for adults with treatment-resistant depression, defined as an inadequate response to at least two oral antidepressants. That FDA language is the foundation, and insurers build their coverage rules on top of it. The medical term for this is “step therapy”: before a plan pays for a newer or higher-cost treatment, it asks you to have first “stepped through” more established options.

Most plans require documentation of the following before approving Spravato:

• At least two separate antidepressant medications. This aligns with the FDA indication of an inadequate response to two or more oral antidepressants.
• An adequate dose. The medication has to have been taken at a generally accepted therapeutic dose, not just a starter dose you stopped before adjusting.
• An adequate duration. Many plans look for roughly four to six weeks or more on each medication at that dose, long enough to give it a fair chance to work.
• Different drug classes. Most plans want the two trials to come from different classes of antidepressants (for example, an SSRI and an SNRI) rather than two very similar drugs.

These are common patterns, not universal rules. Coverage criteria are plan-specific, and the exact number of weeks, the classes accepted, and the paperwork required vary from one insurer to the next. That is why we describe them as what “most plans require” rather than a guarantee. To understand the diagnosis these rules are built around, our overview of treatment-resistant depression is a helpful companion read.

What counts as an “adequate trial” — and what doesn’t

This is where most confusion happens. An “adequate trial” is a real, documented attempt at a therapeutic dose for a meaningful length of time. Understanding the edges of that definition can change whether you qualify.

What usually counts:

• A medication that simply did not help. If you took an antidepressant at a normal dose for several weeks and your depression did not meaningfully improve, that is the textbook example of a failed trial.
• A medication you stopped early because of side effects. This surprises many people. If you had to discontinue a drug because of intolerable or clinically significant side effects, that can still count as a failed trial under many plans, precisely because you could not stay on an effective dose. The key is that it needs to be documented by a provider. There is a reason antidepressants do not work, or become unusable, for so many people, a topic we explore in why antidepressants don’t work for everyone.
• A medication that worked for a while and then stopped. A partial or fading response is still an inadequate response over time.

What usually does not count on its own:

• A dose you never titrated up. Stopping at the lowest starter dose after a few days is generally not viewed as a full trial.
• A prescription you filled but did not take consistently. Adequate adherence is part of the definition.
• Over-the-counter supplements. Herbal products or supplements are not prescription antidepressants and are not counted.

The practical takeaway: side-effect discontinuations are your friend when it comes to eligibility, but only if there is a record of them. Whether a specific medication counts is a clinical judgment made during your evaluation, so the goal is to bring the fullest possible history so nothing gets missed.

Wondering whether your history already meets the bar? The NeuroGlow team can review your medication record and walk you through it. Learn more about Spravato at NeuroGlow and request a consultation.

How to reconstruct your medication history

Many patients cannot immediately name every antidepressant they have tried, especially if the trials were spread across years or different providers. You do not need a perfect memory. You need a paper trail, and there are several reliable ways to build one.

• Pharmacy records. Your pharmacy can print a full medication history, often going back several years. Large chains can pull records across all their locations, and this single document frequently captures medications patients had forgotten. It shows the drug, the dose, and the fill dates, which help establish duration.
• Prior providers. Any psychiatrist, primary care physician, or therapist-affiliated prescriber who treated you can supply visit notes documenting what was prescribed, at what dose, and why it was changed or stopped. Those notes are especially valuable for capturing side-effect discontinuations.
• Your insurance claims history. Prescriptions run through insurance leave a claims record you can often request from your plan or view in its member portal.
• Your own notes. Old calendar entries, a symptom journal, or even messages to a partner about starting a new medication can help you reconstruct the timeline and jog your memory for records to request.

Gather what you can before your evaluation, but do not delay reaching out because your file feels incomplete. Part of the clinic’s job is to help you fill the gaps.

What happens at your NeuroGlow evaluation

NeuroGlow is a REMS-certified Spravato clinic serving Fort Worth, McKinney, and Flower Mound, under medical director Dr. Aaron Brown, DO. At your consultation, the medical team reviews your diagnosis and your full medication history against both the clinical definition of treatment-resistant depression and the specific requirements of your insurance plan.

The team looks at which medications you tried, at what dose, for how long, and why each one ended, then determines whether your history supports a Spravato prior authorization. If it does, the clinic prepares the documentation your insurer needs. Candidacy is always a clinical decision made by the medical team, and no one can promise approval in advance, but a thorough review gives your case its best, most accurate footing.

Because Spravato is only given in a REMS-certified setting, treatment itself involves about two hours of monitoring after each dose, and you will need a ride home. You should not drive the day of treatment; most people are able to drive the next day after a restful night of sleep. The two-hour window is for observation only.

If you haven’t tried two yet: realistic paths

If you have only tried one antidepressant, or none, that does not close the door. It usually just means the conversation starts in a slightly different place.

• You may be closer than you think. Once your pharmacy and provider records are pulled, patients often discover a second qualifying trial they had forgotten, including one they stopped for side effects.
• You can complete the remaining step with support. If you genuinely need one more documented trial, a prescriber can help you pursue an adequate trial of an appropriate medication so your history meets the standard most plans require.
• Other options exist. Beyond FDA-approved Spravato, some patients explore other treatments. NeuroGlow also offers IV ketamine, which is used off-label and is not FDA-approved for depression. The medical team can explain where each option fits.

The point of step therapy is not to keep you from care. It is to document that you have earned access to it. Getting your history organized is the single most productive thing you can do before a consultation.

Frequently asked questions

Do side-effect discontinuations count as failures?

Often, yes. If you had to stop an antidepressant because of intolerable or clinically significant side effects, many plans count that as a failed trial, because you were unable to stay on an effective dose. The key is documentation: the discontinuation and the reason should appear in a provider’s records or your pharmacy history. Whether it counts in your specific case is a clinical judgment made during your evaluation.

Do antidepressants from years ago count?

They can. Step therapy generally looks at your history of adequate trials, not just recent ones, so a medication you tried years ago may still count if it was taken at an appropriate dose for an adequate duration and there is a record of it. This is exactly why pulling old pharmacy and provider records is worthwhile. Rules are plan-specific, so the medical team will confirm how your history applies.

Does therapy count toward step requirements?

No. Step therapy for Spravato is based on trials of oral antidepressant medications, not psychotherapy. Talk therapy is a valuable part of many treatment plans and worth continuing, but it does not substitute for the medication trials most plans require for coverage. The two antidepressants remain the relevant threshold.