How Traditional Antidepressants Work
Most people who’ve dealt with depression have tried at least one traditional antidepressant. These medications typically fall into categories like SSRIs (selective serotonin reuptake inhibitors) or SNRIs (serotonin-norepinephrine reuptake inhibitors). Medications like Prozac, Zoloft, Lexapro, and Effexor work by increasing the availability of neurotransmitters – primarily serotonin and norepinephrine – in the brain.
The theory behind these medications centers on the idea that depression involves an imbalance of these chemical messengers. By preventing their reabsorption (reuptake) or blocking their breakdown, these drugs aim to keep more of these neurotransmitters active in the brain. However, there’s a significant catch: they typically take 4-8 weeks to show meaningful effects, and many people don’t respond to them at all.
The Glutamate System: A Different Approach to Depression Treatment
Spravato takes an entirely different route by targeting the glutamate system, the brain’s primary excitatory neurotransmitter system. Glutamate plays a crucial role in neural communication, learning, and memory formation. Research over the past two decades has revealed that glutamate dysfunction may be a key factor in depression, particularly in cases that don’t respond to traditional medications.
Rather than slowly building up neurotransmitter levels over weeks, Spravato works as an NMDA receptor antagonist. It blocks certain glutamate receptors, which triggers a cascade of effects, including:
- Rapid formation of new neural connections
- Increased production of brain-derived neurotrophic factor (BDNF)
- Enhanced neuroplasticity, or the brain’s ability to reorganize itself
- Quick anti-inflammatory effects in the brain
This fundamentally different mechanism explains why Spravato can work when traditional antidepressants fail – it’s not simply doing the same thing in a different way; it’s addressing depression through an entirely separate biological pathway.
Key Differences Between Spravato (Esketamine) and Traditional Antidepressants
Speed of Depression Relief
Perhaps the most striking difference is timing. While traditional antidepressants require weeks or months to determine if they’re effective, some patients report improvement within hours or days of their first Spravato treatment. This rapid onset can be life-saving for individuals experiencing severe depression with suicidal ideation.
Traditional antidepressants work gradually, requiring consistent daily dosing to build therapeutic levels. Spravato, by contrast, is initially administered twice weekly, then potentially reduced to weekly or every-other-week maintenance dosing once symptoms improve.
The Clinical Setting Requirement for FDA-Approved Treatment
One major practical difference involves where and how these treatments are administered. Traditional antidepressants are taken at home as a daily pill. Spravato, however, must be administered in a certified clinical setting under medical supervision.
This requirement exists because Spravato is a nasal spray that can cause dissociation, sedation, and temporary increases in blood pressure. Patients must:
- Self-administer the nasal spray under direct observation of a healthcare provider
- Remain at the clinic for at least two hours after administration
- Have their blood pressure monitored before and after treatment
- Arrange for transportation home, as driving is not permitted on treatment days
While this creates logistical challenges, the clinical setting also ensures safety and allows for immediate medical intervention if needed.
How Spravato Treatment Works for Treatment-Resistant Depression
Spravato received FDA-approved status specifically for treatment-resistant depression, which is generally defined as depression that hasn’t adequately responded to at least two different antidepressant trials. This is a crucial distinction – Spravato isn’t meant as a first-line treatment but as an option when other approaches have failed.
The treatment protocol typically involves an induction phase with twice-weekly dosing for the first month, followed by a maintenance phase in which the frequency may be reduced based on individual response. Throughout treatment, patients continue taking their oral antidepressant medication – Spravato is used in conjunction with, not instead of, traditional antidepressants.
Research has shown that roughly 70% of people with treatment-resistant depression experience some degree of improvement with Spravato, with many experiencing significant symptom reduction. For context, each new antidepressant trial typically has only a 10-15% chance of success in people who’ve already failed multiple medications.
Finding the Right Treatment: Practical Considerations
When Traditional Antidepressants Make Sense
For many people experiencing their first or second episode of depression, traditional antidepressants remain the appropriate first choice. They’re:
- More convenient (daily pill at home)
- Less expensive and more widely covered by insurance
- Well-studied with decades of safety data
- Effective for many patients without the need for clinic visits
If you haven’t tried traditional antidepressants or have only tried one or two, these medications still represent a reasonable treatment path.
When to Consider Spravato for Severe Depression
Spravato becomes a compelling option in specific circumstances:
- You’ve tried multiple antidepressants (typically at least two) without adequate relief
- Your depression is severe and causing significant functional impairment
- You’re experiencing suicidal thoughts and need faster intervention
- Traditional antidepressants have caused intolerable side effects
- You can manage the logistical requirements of clinic-based treatment
The Reality of Side Effects and Tolerability
Traditional antidepressants commonly cause side effects like sexual dysfunction, weight gain, nausea, and emotional blunting. These effects typically persist as long as you take the medication, though some may diminish over time.
Spravato’s side effects are different and largely acute, meaning they occur during or shortly after treatment and resolve within hours:
- Dissociation (feeling detached from reality)
- Dizziness and sedation
- Nausea
- Temporary blood pressure increase
- Altered perception
Most patients find these effects manageable and worth tolerating given the potential for rapid symptom improvement. Clinical setting supervision ensures safety during the period when these effects are most likely.
Making an Informed Decision About Depression Relief
The choice between Spravato and traditional antidepressants isn’t always an either-or proposition. Many patients continue oral antidepressants while adding Spravato, combining the benefits of both approaches. The right treatment depends on your individual history, symptom severity, response to previous medications, and practical considerations, such as your ability to attend clinic appointments.
If you’re struggling with treatment-resistant depression, discussing Spravato with your psychiatrist or mental health provider is worthwhile. They can evaluate whether you meet the criteria for this FDA-approved treatment and whether the unique timing and mechanism of action might offer benefits that traditional approaches haven’t provided.
Conclusion
The debate around Spravato vs antidepressants ultimately centers on finding the most effective way to treat depression for each individual struggling with major depressive disorder. While traditional treatments that target serotonin in brain cells have helped millions achieve mood regulation and manage depression symptoms, they don’t work for everyone – particularly patients with treatment-resistant depression who haven’t found symptom relief after trying at least two antidepressants. Unlike traditional antidepressants that can take weeks to show effects, Spravato offers rapid relief for those experiencing severe depressive episodes or chronic depression, though considerations like elevated blood pressure, patient safety protocols, and the more intensive treatment process must be carefully weighed. Some patients may also deal with additional challenges like chronic pain alongside their depression, making a personalized treatment plan even more essential.
Ultimately, the choice between these approaches isn’t about which is universally “better” but about matching the right mechanism, timing, and delivery method to your specific situation. Whether you’re just beginning to explore options for major depressive disorder or you’ve been navigating chronic depression for years without adequate relief, understanding how different medications work to treat depression empowers you to collaborate more effectively with your healthcare team. The goal remains the same regardless of which path you take: achieving lasting relief from depression symptoms and restoring your quality of life through the treatment approach that’s right for you.
About the Author
Erin Jones
