Ketamine therapy has emerged as a promising option for people struggling with depression and anxiety, especially when traditional treatments haven’t worked. As interest in ketamine treatment has grown, so have the number of ways it can be administered.
Two commonly discussed options are intranasal ketamine and sublingual ketamine, both of which are offered by Pacific Mind Health. While both aim to reduce symptoms of depression and anxiety, they differ in how they’re delivered, how quickly they work, and how closely they are monitored.
Understanding the differences between intranasal vs sublingual ketamine can help patients have more informed conversations with their care providers about what option may be appropriate for them.
What is ketamine therapy?
Ketamine therapy has gained attention for its ability to provide rapid antidepressant effects, particularly for individuals with treatment-resistant depression (TRD) and major depressive disorder (MDD). Unlike traditional oral antidepressants, which can take weeks to work, ketamine may relieve symptoms within hours or days.
Ketamine treatment is also being explored for anxiety symptoms, suicidal ideation, and other mental health conditions. Its growing use reflects a need for alternatives when standard medications fail to provide relief.
Ketamine can be administered in several forms, including intravenous (IV) ketamine, intranasal ketamine, and sublingual ketamine. Each method has unique considerations related to safety, effectiveness, and patient experience.
Ketamine is closely related to Spravato® (esketamine,) a nasal spray developed specifically to make it eligible for approval by the US Food and Drug Administration (FDA.) It is administered only under medical supervision in a certified treatment center. Ketamine, on the other hand, is not approved by the FDA.
The challenge of treatment-resistant depression
TRD is defined as depression that does not improve after trying at least two antidepressant medications at adequate doses and duration. TRD can significantly impact quality of life and increase the risk of anxiety, functional impairment, and suicidal thoughts.
Ketamine treatment has shown promise for people with TRD, with studies demonstrating meaningful reductions in depressive symptoms. For many patients, ketamine offers hope when other options have fallen short.
The antidepressant effects of ketamine are believed to stem from its impact on brain circuits involved in mood regulation and emotional processing.
How ketamine works in the brain
The exact mechanism of action of ketamine is still being studied, but researchers believe it works differently from traditional antidepressants.
Ketamine blocks certain receptors while enhancing others, leading to increased glutamate signaling in the brain. This process activates pathways involved in neuroplasticity, allowing the brain to form new connections more quickly.
These changes are thought to explain ketamine’s rapid effects on mood and its potential to reduce suicidal thoughts in high-risk patients.
Ketamine treatment options
Ketamine can be administered in several ways, including:
- IV ketamine infusions
- Sublingual ketamine (absorbed under the tongue)
- Intranasal ketamine, including FDA-approved esketamine nasal spray
Each method varies in how quickly ketamine enters the bloodstream, how predictable dosing is, and how closely treatment is supervised.
Pacific Mind Health currently offers both sublingual and intranasal ketamine treatments, as well as sublingual ketamine-assisted therapy.
Intranasal ketamine
Intranasal ketamine is a nasal spray administered through the nose under close medical supervision. This method allows ketamine to be absorbed through the nasal lining and enter the bloodstream relatively quickly.
Intranasal ketamine is typically provided in a certified clinical setting, where patients are monitored before, during, and after treatment. Because of potential side effects such as dizziness or dissociation, observation after each session is required.
This form of ketamine offers a structured treatment experience with consistent dosing and clinical oversight, which can be reassuring for many patients.
Sublingual ketamine
Sublingual ketamine is placed under the tongue and absorbed through the oral mucosa. It is sometimes prescribed for at-home use, depending on the provider and treatment plan.
Absorption with sublingual ketamine can be slower and more variable than intranasal administration. Factors such as saliva production, swallowing, and individual metabolism can affect how much medication is absorbed.
Sublingual ketamine is administered and monitored at Pacific Mind Health under close medical supervision. It can also be combined with therapy treatment.
Intranasal vs sublingual ketamine: key differences
When comparing intranasal vs sublingual ketamine, several important differences stand out:
- Speed of onset: Intranasal ketamine generally works faster than sublingual ketamine.
- Dosing consistency: Intranasal dosing tends to be more predictable.
- Monitoring: At Pacific Mind Health, both intranasal and sublingual ketamine are administered in a clinical setting.
- Safety oversight: Clinical monitoring reduces the risk of misuse and helps manage side effects.
The right option depends on a patient’s symptoms, medical history, and comfort level with supervision.
Safety and side effects
Ketamine treatment is generally well tolerated when properly prescribed and monitored. Common side effects may include:
- Dizziness
- Nausea
- Temporary dissociation
- Mild increases in blood pressure
These effects usually resolve within hours. Careful screening helps reduce risks, especially for individuals with certain medical conditions or a history of substance use.
Close monitoring is particularly important with ketamine due to its potential for misuse.
Clinical evidence
Research supporting ketamine treatment for depression continues to grow. Clinical studies have shown improvements in depressive symptoms and anxiety, particularly in people with TRD.
Intranasal ketamine has been studied extensively in controlled settings, while research on sublingual ketamine is still evolving. Ongoing studies aim to better understand long-term outcomes, optimal dosing, and safety across different administration methods.
Future directions
Future research will continue to explore ketamine’s role in treating other conditions, including bipolar depression and post-traumatic stress disorder (PTSD). Researchers are also studying new formulations and delivery methods to improve convenience while maintaining safety.
Combining ketamine treatment with psychotherapy and ongoing psychiatric care may further enhance outcomes for many patients.
Frequently asked questions (FAQ)
Is intranasal ketamine the same as Spravato?
Spravato is an FDA-approved intranasal form of esketamine used under medical supervision.
Is sublingual ketamine FDA-approved?
Sublingual ketamine is prescribed off-label and is not FDA-approved for depression.
Which works faster, intranasal or sublingual ketamine?
Intranasal ketamine generally has a faster and more predictable onset.
Is ketamine safe for anxiety?
Ketamine may help anxiety symptoms for some people, but it should be evaluated on a case-by-case basis.
Do I need ongoing care after ketamine treatment?
Yes. Ketamine is most effective when combined with continued psychiatric care and therapy.
Key takeaways
- Ketamine offers rapid relief for treatment-resistant depression
- Intranasal ketamine provides structured, supervised treatment
- Sublingual ketamine may be more convenient but less predictable
- Safety and monitoring are essential for all ketamine therapies
- A psychiatric evaluation helps determine the best option
Looking for Spravato or ketamine treatment near you?
Pacific Mind Health offers Spravato (esketamine) and ketamine therapy for treatment-resistant depression, major depressive disorder, and more. Our experienced clinicians provide compassionate, evidence-based care to help you feel better.
Ready to take the next step? Schedule a free consultation today to see if Spravato or ketamine is right for you.
