If you've tried two or more medications without adequate relief, your depression is classified as treatment-resistant. You're not broken. The medications were targeting the wrong pathway.
It's not always the version you see in commercials. Sometimes it's subtler. Sometimes it's been there so long you've stopped recognizing it as something separate from who you are.
You've tried two or more antidepressants. Each one helped a little, then plateaued — or the side effects outweighed the benefit.
You feel emotionally flat. Not actively in crisis, but not really here either. The color has drained out of things you used to care about.
You're functional. You go to work, you show up. But there's a gap between the person everyone sees and how you actually feel.
People tell you to exercise more, sleep better, think positive. You've done all of it. This isn't a motivation problem.
You've done therapy — maybe years of it. It helped you understand your patterns. But understanding hasn't been enough to change the underlying weight.
You're skeptical about trying another thing. That skepticism isn't irrational. It's what happens when you've been let down by treatments that promised more than they delivered.
Traditional antidepressants increase serotonin between neurons. But depression isn't fundamentally a serotonin problem — it's a connectivity problem. Chronic depression physically degrades the synaptic connections in your prefrontal cortex, the region responsible for decision-making, emotional regulation, and the ability to imagine a future.
Research using brain imaging has shown that patients with treatment-resistant depression have measurably reduced dendritic spine density in the prefrontal cortex. Fewer connections. Less signal. This is why depression feels like fog — because your brain's communication infrastructure has literally thinned out.
Ketamine targets this directly. By blocking NMDA receptors and triggering a cascade through the glutamate system, it activates BDNF (brain-derived neurotrophic factor) and the mTOR signaling pathway. These are the biological mechanisms that build new synaptic connections.
Two-photon microscopy studies have shown visible new dendritic spine growth within 24 hours of a single ketamine dose. Your brain isn't just feeling better — it's physically rebuilding the wiring that depression degraded.
This is why ketamine can produce effects in hours or days instead of weeks. It's not masking symptoms. It's restoring the biological infrastructure that symptoms arise from.
If you've tried two or more antidepressants at adequate doses for adequate durations without sufficient improvement, you meet the clinical definition of treatment-resistant depression. This applies to roughly 30% of people diagnosed with major depressive disorder. The 45–65% response rate above is specifically for this population — people for whom traditional treatments have already failed.
I have treatment-resistant depression. Every doctor just throws psychotropic meds at me. This therapy has truly helped in ways I couldn't have imagined. The care and attention at Music City Ketamine is unlike anything I've experienced.Verified PatientTreatment-Resistant Depression
Every session is administered and monitored by our anesthesia team — the same professionals managing airways in operating rooms across Nashville. Hospital-grade monitoring tracks your heart rate, blood pressure, and oxygen saturation throughout.
You'll settle into a private treatment suite designed to feel nothing like a clinic. Weighted blanket, eye mask, curated music. Your provider calibrates your dose in real time based on how you're responding — not a template.
Most patients begin with an initial series of infusions. Your provider builds your protocol around your response, adjusting as needed. There's no one-size-fits-all schedule. The goal is meaningful, lasting change — not dependency on a treatment.
Ketamine works through a completely different mechanism than SSRIs and SNRIs. In most cases, you can continue your current medications during treatment. Certain medications (particularly MAOIs and high-dose benzodiazepines) may require adjustment — we'll review your full medication list during your initial conversation.
A conversation costs nothing. We'll be honest about whether ketamine therapy makes sense for your specific situation — and we'll tell you if it doesn't.
Schedule a ConversationNot ready to schedule? Text us at (615) 988-4600.