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Ketamine Nasal Spray

Ketamine Nasal Spray

Table of Contents

Ketamine nasal spray has emerged as a groundbreaking treatment for depression, pain, and anxiety, offering a fast-acting alternative to traditional antidepressants. Initially developed as an anesthetic, ketamine has gained significant attention for its ability to alleviate symptoms in individuals who have not responded to conventional treatments. The nasal ketamine spray is now being prescribed for various conditions, with esketamine nasal spray (Spravato) being the first FDA-approved version. This approval marks a significant shift in how mental health conditions are approached, providing hope for those who have struggled with treatment-resistant depression.


Unlike oral antidepressants, which may take weeks to show results, ketamine nasal spray for depression can offer relief within hours. This rapid onset is particularly beneficial for individuals experiencing severe depressive episodes or suicidal thoughts, where immediate intervention is crucial. However, questions remain about its safety, effectiveness, and potential for addiction. This guide explores everything you need to know about ketamine nasal spray dosage, side effects, and how long ketamine nasal spray lasts to help you make an informed decision.

What Is Ketamine Nasal Spray?

Ketamine nasal spray is a form of intranasal ketamine designed for medical use. It works by targeting the glutamate system, a neurotransmitter network involved in mood regulation and pain perception. The most well-known brand is Spravato (esketamine nasal spray), which is FDA-approved for treatment-resistant depression. However, compounded ketamine nasal spray is also prescribed off-label for conditions like chronic pain and anxiety. The versatility of ketamine nasal spray lies in its ability to address multiple conditions through a non-invasive method.


While esketamine nasal spray for anxiety is being researched, ketamine nasal spray is already showing promise as an effective alternative to nasal spray antidepressants. Unlike ketamine infusions, which require intravenous administration, nasal spray ketamine is easier to administer and can be self-administered in some cases, though always under medical supervision. This ease of use makes it more accessible to a wider range of patients.

How Does Ketamine Nasal Spray Work?

Unlike traditional antidepressants that target serotonin and dopamine, ketamine nasal spray affects the glutamate system. This mechanism helps create new neural connections, which can improve mood and cognitive function. By modulating glutamate, ketamine nasal spray works differently than nasal antidepressants that typically target serotonin. It is often used as a last resort for treatment-resistant depression and severe anxiety disorders, providing rapid relief in comparison to SSRIs and SNRIs.


The effectiveness of intranasal ketamine varies, but many patients report improvements within hours of administration. This rapid onset is one of the reasons why ketamine nasal spray for depression has gained popularity. The ability to provide quick relief makes it a valuable option for managing acute depressive episodes.

How Long Does Ketamine Nasal Spray Last & Take to Work?

One of the most commonly asked questions is how long does ketamine nasal spray last? The effects of nasal ketamine can be felt within 30 minutes to 2 hours, depending on the individual and dosage. Typically, relief from depressive symptoms can last anywhere from a few days to a week. This duration can vary significantly based on factors such as dosage, individual response, and frequency of use.

  • How long does ketamine nasal spray take to work? Most patients feel relief within hours, making it significantly faster than SSRIs, which can take weeks to show effects.
  • Unlike traditional antidepressants, ketamine nasal spray may require weekly or biweekly doses rather than daily use, which can be more convenient for some patients.
  • The rapid onset of action makes ketamine nasal spray particularly useful for managing severe depressive episodes where immediate relief is needed.

Ketamine Nasal Spray Dosage & How to Use It

The ketamine nasal spray dosage depends on whether a patient is using Spravato (esketamine nasal spray) or a compounded ketamine nasal spray.

  • Esketamine nasal spray dosage: Typically 56-84 mg per session, administered under medical supervision to ensure safety and efficacy.
  • Compounded ketamine nasal spray dosage: Varies depending on formulation and physician recommendations. It is crucial to follow the prescribed dosage carefully to avoid overuse and potential side effects.
  • Requires careful titration to ensure the right balance between therapeutic benefits and minimizing side effects.

Due to the potential risks associated with ketamine use, nasal ketamine spray should always be taken under professional guidance. This ensures that patients receive the correct dosage and are monitored for any adverse reactions.

Ketamine Nasal Spray vs. Ketamine Infusions: Which Is Better?

Both ketamine nasal spray and ketamine infusions offer benefits, but they have key differences:

  • Nasal spray ketamine is non-invasive and can be self-administered in some cases, making it more accessible and convenient for patients.
  • Ketamine infusions may provide more controlled and consistent results but require intravenous administration, which can be more invasive and may not be suitable for all patients.
  • Ketamine nasal spray vs. infusion: While infusions may offer longer-lasting relief, nasal spray ketamine provides greater accessibility and ease of use, which can be a significant advantage for many patients.

Is Ketamine Nasal Spray Addictive?

One major concern is whether ketamine nasal spray is addictive. While esketamine (Spravato) nasal spray is regulated and administered in clinical settings, compounded versions carry a risk of misuse. It is essential to differentiate between medical-grade ketamine and recreational use, as the latter poses a higher risk for abuse.

  • Does ketamine nasal spray get you high? At therapeutic doses, it may cause mild dissociation but is not the same as recreational ketamine use, which can lead to more severe dissociative effects.
  • Is esketamine addictive? It has a lower risk of addiction compared to recreational ketamine, but caution is advised. Patients should be closely monitored to prevent misuse.
  • K spray (a street name for ketamine) is different from medical-grade formulations and poses a higher risk for abuse due to its unregulated nature.

Side Effects & Safety Considerations

Like any medication, ketamine nasal spray side effects must be considered before starting treatment. Common side effects include dizziness, nausea, disorientation, and increased blood pressure. Some patients experience mild hallucinations or dissociation, but this usually subsides within a few hours. Long-term safety data is still being studied, and ketamine nasal spray prescription should only be given to those who meet medical criteria.

How to Get Ketamine Nasal Spray: Prescription & Cost

  • How much is ketamine nasal spray? Costs range from $600 to $900 per treatment session.
  • Doctors who prescribe ketamine nasal spray are typically psychiatrists specializing in treatment-resistant depression.

DIY & Compounded Ketamine Nasal Spray: Is It Safe?

  • At home ketamine nasal spray should never be attempted due to dosage inconsistencies and legal risks.

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If you or a loved one is struggling with depression, anxiety, or chronic pain, Asana Recovery offers compassionate and evidence-based care. While ketamine nasal spray is a promising treatment for those with treatment-resistant depression, it’s essential to explore all options with the guidance of medical professionals. Our dedicated team at Asana Recovery provides personalized treatment plans to help you regain control of your mental health.


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FAQs About Ketamine Nasal Spray


How long does ketamine nasal spray last?

The effects of ketamine nasal spray typically last between a few days to a week, depending on the individual, dosage, and frequency of use.

How long does ketamine nasal spray take to work?

Ketamine nasal spray can start working within 30 minutes to 2 hours, making it much faster than traditional antidepressants, which may take weeks to take effect.

Does ketamine nasal spray get you high?

While ketamine nasal spray may cause mild dissociation, it is not the same as recreational ketamine use, often referred to as K spray. Under medical supervision, it is used for therapeutic purposes.

 Is ketamine nasal spray addictive?

Esketamine nasal spray (Spravato) is administered under medical supervision to reduce the risk of addiction. However, compounded ketamine nasal spray may carry a higher risk of misuse.

What are the side effects of ketamine nasal spray?

Common ketamine nasal spray side effects include dizziness, nausea, increased blood pressure, and mild hallucinations. These effects typically subside within a few hours after administration.

 How do I get a prescription for ketamine nasal spray?

Doctors who prescribe ketamine nasal spray typically evaluate patients for treatment-resistant depression. Spravato (esketamine nasal spray) requires in-office administration, while compounded ketamine nasal spray may be available through specialized clinics.

How much is ketamine nasal spray?

The cost of ketamine nasal spray varies, ranging from $600 to $900 per session. Insurance coverage may depend on whether it is Spravato or a compounded ketamine nasal spray.

Can I buy ketamine nasal spray online?

No, buying ketamine nasal spray online without a prescription is illegal. Esketamine nasal spray is only available through certified providers, and compounded ketamine nasal spray should only be obtained through legitimate medical professionals.

What is the difference between esketamine and ketamine nasal spray?

Esketamine nasal spray (Spravato) is FDA-approved for treatment-resistant depression, while compounded ketamine nasal spray is used off-label for various conditions, including anxiety and pain management.


Is there a difference between ketamine nasal spray and ketamine infusions?
Ketamine nasal spray vs. infusion—while both treat depression and pain, nasal ketamine spray is easier to administer and more accessible, whereas IV ketamine infusions may offer more controlled, long-lasting effects.

Can I make ketamine nasal spray at home?

No, making ketamine nasal spray at home is dangerous and illegal. DIY ketamine nasal spray lacks proper dosing and medical oversight, increasing the risk of harmful side effects and addiction.

What are alternatives to ketamine nasal spray for depression?

Alternatives include nasal spray antidepressants, transcranial magnetic stimulation (TMS), and electroconvulsive therapy (ECT). Some patients explore nasal ketamine for depression when other treatments are ineffective.

Can ketamine nasal spray be used for pain?

Yes, ketamine nasal spray for pain is sometimes prescribed for chronic pain conditions. However, its use should always be supervised by a medical professional to prevent misuse.


How long does ketamine nasal spray last? A: Effects can last several days to a week. Q: Can you buy ketamine nasal spray online? A: No, it requires a prescription. Q: What’s the difference between esketamine and regular ketamine? A: Esketamine is FDA-approved, while compounded ketamine is not.

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