Depression and treatment-resistant mood disorders have prompted advancements in therapies beyond traditional medications. At Gianan Health in Bolingbrook, IL, patients often encounter terms like Spravato and ketamine as emerging options. While both are connected to the NMDA receptor and can rapidly improve mood symptoms, they are distinct in administration, mechanism, and clinical applications. Understanding these differences is crucial for anyone exploring modern approaches to mental health care.
Spravato, also known as esketamine, and ketamine share a chemical relationship, yet their use in medical settings and regulatory oversight vary significantly. By breaking down each option’s characteristics, we can better comprehend how they impact the brain and what patients might experience.
Mechanism of Action
Both Spravato and ketamine function as NMDA receptor antagonists, meaning they interfere with the activity of a specific receptor in the brain involved in mood regulation. This interaction can trigger rapid improvements in depressive symptoms compared to conventional antidepressants, which often take weeks to take effect. However, the two substances differ in their molecular structure and potency. Spravato is the S-enantiomer of ketamine, making it more potent at the NMDA receptor and giving it distinct pharmacological properties.
Ketamine, originally developed as an anesthetic, is typically administered intravenously in a racemic form, meaning it contains both S- and R-enantiomers. Its broader receptor activity can contribute to mood-lifting effects and, in some cases, dissociative experiences. While both medications impact glutamate signaling, Spravato’s refined formulation allows for intranasal delivery, whereas ketamine requires IV or sometimes oral or sublingual administration, depending on the setting.
The difference in receptor interaction also translates to variations in duration of action and side effect profiles. Understanding these mechanisms helps clinicians predict responses and manage potential risks for patients seeking treatment for severe or treatment-resistant depression.
Administration and Clinical Use
One of the most noticeable distinctions between Spravato and ketamine is how they are delivered. Spravato is administered as a nasal spray under the supervision of a certified medical provider. Its dosing schedule is highly structured, typically starting with twice-weekly sessions before tapering to weekly or maintenance treatments. This structured approach allows for careful monitoring of blood pressure, mental status, and potential side effects during and after each session.
Ketamine, in contrast, is most commonly given intravenously in a clinical setting, although some clinics offer oral or sublingual formulations. IV ketamine is often administered over 40 minutes to an hour, and dosing can be more flexible depending on the patient’s response and tolerability. Unlike Spravato, ketamine has been used off-label for years in psychiatric care, giving clinicians more flexibility in adjusting doses for symptom relief.
Both treatments can be considered for patients with treatment-resistant depression, acute suicidal ideation, or severe mood disorders. Clinicians assess factors like medical history, severity of symptoms, and potential interactions with other medications when deciding between the two therapies.
Effects, Benefits, and Considerations
Spravato and ketamine can both produce rapid antidepressant effects, sometimes within hours. Patients may notice mood improvement, reduced suicidal thoughts, and enhanced emotional stability. However, individual experiences differ due to administration routes, dosage, and underlying physiology. Spravato’s nasal administration can produce subtle dissociative effects, while IV ketamine may cause more pronounced dissociation or mild hallucinations, which are usually short-lived and monitored in clinical settings.
Side effect profiles also vary. Common effects for both may include dizziness, nausea, or mild increases in blood pressure, but ketamine’s intravenous route can occasionally lead to more intense dissociation or perceptual changes. Spravato’s FDA-approved status ensures strict administration protocols, including in-clinic observation, which can reduce certain risks.
- Key considerations for patients include:
- Monitoring requirements
- Duration of effects
- Potential for mild dissociation
- Frequency and convenience of treatment
Understanding these factors helps differentiate which treatment may align with a patient’s needs and expectations, though such decisions should always be guided by a healthcare professional.
Making Sense of Choices
Both Spravato and ketamine offer promising advances in the treatment of depression and treatment-resistant mood disorders. While they share mechanisms and can rapidly improve symptoms, their differences in administration, potency, and side effect profiles are notable. At Gianan Health in Bolingbrook, IL, multiple providers emphasize education as a key component of navigating these options safely. By understanding how each medication works, patients and caregivers can make more informed decisions in collaboration with medical professionals.
Resources:
McLaughlin, K. A., & Nolen-Hoeksema, S. (2011). Rumination as a Transdiagnostic Factor in Depression and Anxiety. Behavior Research and Therapy.
Sanacora, G., et al. (2017). A Consensus Statement on the Use of Ketamine in the Treatment of Mood Disorders. JAMA Psychiatry.
Canuso, C. M., et al. (2018). Efficacy and Safety of Esketamine Nasal Spray Plus Oral Antidepressant Treatment for Relapse Prevention in Patients With Treatment-Resistant Depression. American Journal of Psychiatry.


