Esketamine is an FDA-approved nasal spray treatment used for adults with certain forms of depression, including treatment-resistant depression and major depressive disorder with acute symptoms. It works differently from traditional antidepressants and is designed for patients who have not experienced adequate relief from standard oral medications.
At Gianan Health, our team provides Esketamine treatment in a supervised clinical setting to ensure safety, comfort, and proper monitoring throughout the treatment process.
Understanding How Esketamine Works in the Brain
Esketamine is derived from ketamine, but it is specifically formulated for controlled medical use. Unlike traditional antidepressants that primarily target serotonin, Esketamine works on a different brain pathway involving glutamate, which is one of the brain’s key neurotransmitters.
Glutamate plays an important role in learning, memory, and mood regulation. In individuals with depression, this system may become disrupted, affecting how brain cells communicate. Esketamine helps restore this communication by influencing NMDA receptors in the brain, which are linked to glutamate activity.
How This Differs From Traditional Antidepressants
Most antidepressants work by gradually adjusting serotonin or similar chemicals over several weeks. Esketamine works more rapidly by acting on different neural pathways.
This difference in mechanism is important for patients who have not responded well to standard medications. Instead of slowly building up chemical changes, Esketamine helps stimulate new connections between brain cells, which may support faster improvement in depressive symptoms.
What Happens During an Esketamine Treatment Session
Esketamine is administered as a nasal spray in a clinical setting under direct supervision. Patients do not take it at home. Instead, each session is carefully monitored by a medical provider.
Before treatment begins, patients undergo a full evaluation to ensure the medication is appropriate for their condition. Once administered, the patient remains in the clinic for observation for at least two hours.
During this time, our team monitors vital signs such as blood pressure and overall response to the medication. This ensures safety and allows us to manage any temporary side effects.
How Esketamine Affects Mood and Symptoms
Esketamine treatment works by rapidly influencing brain connectivity. In many patients, depression is associated with reduced communication between certain brain regions. By acting on glutamate pathways, Esketamine may help restore these connections.
As brain activity begins to shift, patients may experience a reduction in depressive symptoms such as low mood, lack of motivation, and emotional numbness. These changes can begin relatively quickly compared to traditional antidepressants, though results vary from person to person.
Why Medical Supervision Is Required
Because Esketamine affects the central nervous system, it must be administered under strict medical supervision. Some patients may experience temporary side effects such as dizziness, dissociation, or changes in blood pressure during or shortly after treatment.
At Gianan Health, our provider closely monitors each session to ensure patient safety and comfort throughout the entire process. This structured environment is a key part of the treatment’s effectiveness and safety profile.
Who Typically Benefits From Esketamine
Esketamine is generally recommended for individuals who have not responded adequately to at least two different antidepressant treatments. It may also be used for patients experiencing severe depressive symptoms that significantly impact daily functioning.
It is not intended as a first-line treatment but rather as a specialized option for more complex or resistant cases of depression.
What Patients Can Expect Over Time
Esketamine is typically used alongside an oral antidepressant as part of a broader treatment plan. Patients may begin to notice improvements in mood, energy, or emotional engagement after a series of supervised sessions.
Response varies, but the goal is to create meaningful improvement in symptoms that have not responded to standard therapies. Over time, treatment plans are adjusted based on individual progress and clinical evaluation.
Conclusion
Esketamine works for depression by targeting glutamate pathways in the brain, helping restore communication between neural circuits involved in mood regulation. Unlike traditional antidepressants, it can produce faster changes in brain activity and is used for treatment-resistant cases under strict medical supervision. At Gianan Health, our dedicated team provides carefully monitored Esketamine treatment designed to support safe and effective relief from depressive symptoms.

