SAFETY
Spravato Safety, Warnings, and Contraindications
Published Updated 11 min read
Spravato carries a boxed warning covering sedation, dissociation, respiratory depression, abuse and misuse, and suicidal thoughts and behaviors, and is available only through a restricted REMS program. [FDA label] The labeling lists three contraindications: aneurysmal vascular disease or arteriovenous malformation, a history of intracerebral hemorrhage, and hypersensitivity to esketamine or ketamine. Other issues — blood pressure, pregnancy, substance use history, and drug interactions — are precautions that require individual clinical judgment rather than automatic exclusion.
KEY POINTS
- Boxed warning: sedation; dissociation; respiratory depression; abuse and misuse; and suicidal thoughts and behaviors. [FDA label]
- Three contraindications: aneurysmal vascular disease or arteriovenous malformation; history of intracerebral hemorrhage; hypersensitivity to esketamine, ketamine, or any excipient.
- Blood pressure rises at all recommended doses, peaking around 40 minutes and lasting about four hours; elevated baseline pressure requires weighing risk against benefit.
- Not recommended during pregnancy; breastfeeding is not recommended during treatment.
- No driving or operating machinery until the next day after a restful sleep.
- None of this replaces screening by a clinician who knows your history — that is where these considerations are actually applied.
The boxed warning
- Boxed warning
- The most prominent warning the FDA requires on prescription labeling, used for risks that can be serious or life-threatening.
The Spravato boxed warning is titled: sedation; dissociation; respiratory depression; abuse and misuse; and suicidal thoughts and behaviors. Its themes are: [FDA label]
- patients are at risk for sedation after administration;
- patients are at risk for dissociative or perceptual changes after administration;
- respiratory depression has been observed in postmarketing experience;
- Spravato has the potential to be abused and misused;
- because of these risks, Spravato is available only through a restricted program under a Risk Evaluation and Mitigation Strategy;
- antidepressants increased the risk of suicidal thoughts and behavior in pediatric and young adult patients.
The last item is a class-wide warning that applies to antidepressants generally. It sits alongside the labeling’s statement that the effectiveness of Spravato in preventing suicide or in reducing suicidal ideation or behavior has not been demonstrated.
Contraindications
- Contraindication
- A situation in which a medication should not be used because the risk outweighs any benefit. This is stronger than a precaution.
The prescribing information lists three:
- Aneurysmal vascular disease, including of the thoracic and abdominal aorta, intracranial vessels, and peripheral arterial vessels, or arteriovenous malformation.
- History of intracerebral hemorrhage.
- Hypersensitivity to esketamine, ketamine, or any of the excipients.
Aneurysmal vascular disease and intracerebral hemorrhage
The first two contraindications share a logic. Spravato raises blood pressure at all recommended doses, and in a vessel that is already aneurysmal or malformed — or in someone who has previously bled into the brain — a sudden pressure increase carries risk that cannot be justified for this treatment. [FDA label]
“Aneurysmal vascular disease” in the labeling explicitly includes the thoracic and abdominal aorta, intracranial vessels, and peripheral arterial vessels. If you have ever been told you have an aneurysm or an arteriovenous malformation anywhere, or have had a brain bleed, say so during screening even if it was years ago and is considered resolved.
Hypersensitivity
Known hypersensitivity to esketamine, ketamine, or any of the excipients in the product is a contraindication. [FDA label] Any prior reaction to ketamine — including during surgery or a procedure — is relevant history worth reporting.
Blood pressure considerations
Spravato causes increases in systolic and/or diastolic blood pressure at all recommended doses. The increase peaks approximately 40 minutes after administration and lasts approximately four hours. [FDA label]
Elevated baseline blood pressure is not a contraindication, but the labeling directs that its risks be weighed against the benefit of treatment, and that patients with cardiovascular or cerebrovascular conditions warrant particular consideration. Blood pressure is measured before dosing and again around 40 minutes afterward, then monitored until it declines and the patient is stable.
Practically, this means blood pressure control is part of the treatment conversation, and readings may influence whether a given session goes ahead.
Pregnancy and reproductive considerations
The prescribing information states that Spravato is not recommended during pregnancy. Human data are insufficient, and animal studies of ketamine in pregnant animals showed fetal neuronal cell death and skeletal malformations at maternally toxic doses. Women of reproductive potential are advised to consider pregnancy planning and prevention during treatment. [FDA label]
Breastfeeding is not recommended during treatment, because esketamine is present in human milk and published studies have shown potential neurotoxicity in juvenile animals.
If you are pregnant, may become pregnant, or are breastfeeding, this belongs at the front of the conversation rather than in a form.
Substance use history
Esketamine is a Schedule III controlled substance, and the labeling directs that the risk of abuse or misuse be assessed before prescribing and that patients be monitored during treatment for signs and symptoms. [FDA label]
A history of substance use disorder is not listed as a contraindication. It is information that shapes how treatment is planned and monitored, and withholding it makes that harder rather than easier. The prohibition on take-home dispensing under the REMS program is itself part of how this risk is managed. [SPRAVATO REMS]
Cognitive effects and driving
The labeling addresses cognitive impairment and impaired ability to drive and operate machinery. Short-term declines in measured cognitive performance occurred around 40 minutes after dosing and returned toward baseline by two hours in the studies described; longer-term open-label data showed generally stable cognitive performance over time. [FDA label]
The instruction that follows is fixed: do not drive or operate machinery until the next day, after a restful sleep.
Medication interactions
Two interaction categories in the labeling have direct practical consequences:
- Central nervous system depressants — including alcohol and benzodiazepines — may increase sedation when used with Spravato.
- Psychostimulants and monoamine oxidase inhibitors may increase blood pressure when used with Spravato.
[FDA label] Provide a full medication list, including over-the-counter products, supplements, and medications taken only occasionally. Nasal corticosteroids and decongestants are not prohibited but should be taken at least one hour before a dose.
Why individual medical screening matters
Everything above describes categories. Applying them to a person requires knowing that person’s history: prior imaging findings, blood pressure trends, current medications, reproductive plans, other diagnoses, and how previous treatments went.
This page cannot tell you whether Spravato is safe for you, and nothing here is personalized medical advice. That determination belongs to a clinician who has evaluated you — at Innerbloom Medical, that begins with a clinical evaluation of eligibility.
What this means for patients
Three items in your history are worth checking before your first appointment: whether you have ever been told you have an aneurysm or arteriovenous malformation, whether you have ever had bleeding in the brain, and whether you have ever reacted badly to ketamine. Those are the labeled contraindications, and they are the fastest way to know a conversation needs to go differently.
Everything else on this page is a weighing exercise rather than a yes or no. Blood pressure, pregnancy plans, substance use history, and your medication list all shape the plan without necessarily ruling treatment out.
Bring the complete list. The most common way safety planning goes wrong is omission — a supplement, an occasional medication, or a history someone assumed was no longer relevant.
In summary
Spravato’s safety framework has three layers: a boxed warning describing the risks that shaped the program, three absolute contraindications, and a set of precautions — blood pressure, pregnancy and reproductive planning, substance use history, cognitive effects, and interactions — that are weighed case by case.
The contraindications are checkable facts about your medical history. The precautions are judgments. Both require a clinician with your full history in front of them, which is why no page can tell you whether treatment is safe for you.
Frequently asked questions
What is in the Spravato boxed warning?↓
The boxed warning is titled: sedation; dissociation; respiratory depression; abuse and misuse; and suicidal thoughts and behaviors. It notes that patients are at risk for sedation and for dissociative or perceptual changes after administration, that respiratory depression has been observed in postmarketing experience, that Spravato has the potential to be abused and misused, that it is available only through a restricted program under a Risk Evaluation and Mitigation Strategy, and that antidepressants increased the risk of suicidal thoughts and behavior in pediatric and young adult patients.
Who should not take Spravato?↓
The prescribing information lists three contraindications: aneurysmal vascular disease, including of the thoracic and abdominal aorta, intracranial vessels, and peripheral arterial vessels, or arteriovenous malformation; a history of intracerebral hemorrhage; and hypersensitivity to esketamine, ketamine, or any of the excipients.
Can I take Spravato if I have high blood pressure?↓
High blood pressure is not listed as a contraindication, but it is a significant consideration. Spravato causes increases in blood pressure at all recommended doses, and the labeling directs that in patients with elevated baseline blood pressure, the risks of short-term increases be weighed against the benefit of treatment. This is an individual clinical judgment.
Is Spravato safe during pregnancy or breastfeeding?↓
The prescribing information states that Spravato is not recommended during pregnancy, based on potential fetal harm from animal findings and insufficient human data, and that breastfeeding is not recommended during treatment because esketamine is present in human milk. Women of reproductive potential are advised to consider pregnancy planning and prevention during treatment.
Does a history of substance use rule out Spravato?↓
It is not listed as a contraindication. Esketamine is a Schedule III controlled substance and the boxed warning addresses abuse and misuse, so the labeling directs that the risk of abuse or misuse be assessed before prescribing and monitored during treatment. A substance use history is relevant information for that assessment rather than an automatic exclusion.
What medications interact with Spravato?↓
The labeling notes that concomitant use with central nervous system depressants may increase sedation, and that concomitant use with psychostimulants or monoamine oxidase inhibitors may increase blood pressure. Give your clinician a complete list of medications, including over-the-counter products, supplements, and anything taken occasionally.
Sources
Medical statements on this page are drawn from the sources below. Where the FDA-approved prescribing information and other material differ, the prescribing information controls.
PRIMARY SOURCES
- SPRAVATO (esketamine) nasal spray, CIII — full prescribing information
Janssen Pharmaceuticals, via the U.S. National Library of Medicine (DailyMed) • FDA-approved labeling; DailyMed version dated March 13, 2026
- SPRAVATO REMS program
SPRAVATO REMS (FDA-required Risk Evaluation and Mitigation Strategy)
SUPPORTING SOURCES
- 988 Suicide & Crisis Lifeline
U.S. Substance Abuse and Mental Health Services Administration
Related reading
Spravato Side Effects and What Patients Should Know
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Read article →10 min readWhat to Expect at Your First Spravato Appointment
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Read article →9 min readPhysician-led care in Old Town Scottsdale. Every patient begins with a free intake.
Book Free Physician IntakeScheduling an intake does not guarantee that Spravato is appropriate for you, that you will be prescribed it, or that your insurance will approve coverage.