The ideal candidate for ketamine therapy is typically an adult with treatment-resistant depression, severe anxiety, PTSD, or another mood disorder who has not found enough relief from standard medications and psychotherapy.
At True Self Mental Wellness in Chandler, AZ, intramuscular (IM) ketamine is offered in a private clinical setting with close monitoring and a trained guide beside you during every session.
Ketamine is not a first-line treatment. It is a specialized option for people who have already tried traditional care and still feel stuck. Screening protects your safety and keeps the treatment reserved for people who can use it safely.
The most common candidates are people with specific, difficult-to-treat conditions:
Treatment-resistant depression (TRD): The most well-studied indication. This usually means you have tried at least two different antidepressant medications at adequate doses for a sufficient duration without meaningful improvement.
Post-traumatic stress disorder (PTSD): Persistent flashbacks, hypervigilance, avoidance, nightmares, startle response, or a sense of being trapped in the past after traditional therapies have not been enough.
Severe anxiety disorders: Treatment-refractory anxiety – including generalized anxiety disorder (GAD) or social anxiety – that has not responded to first-line medicines and therapy.
Other mood disorders: Bipolar disorder (specifically the depressive phases) may be evaluated case-by-case under careful psychiatric supervision. Our practice also treats OCD and ADHD; ketamine is not automatically offered for every one of these conditions.
Many patients are working professionals, parents, college students, first responders, and healthcare workers between the ages of 18 and 65 who are high-functioning but privately struggling. Our practice also sees adolescents and adults older than 65. Age alone does not decide candidacy – stability, medical safety, and a clear diagnosis do.
Beyond a specific diagnosis, these factors suggest ketamine is worth a closer look:
A confirmed diagnosis of depression, anxiety, PTSD, or another qualifying mood disorder.
A documented history of trying conventional psychiatric medications and/or therapies without enough relief.
Symptoms severe enough to disrupt work, relationships, sleep, self-care, or your sense of self.
Medical stability sufficient to receive ketamine under supervision.
Ability to attend in-person sessions at our Chandler office and stay for monitoring.
A psychiatric evaluation is the starting point. Genetic testing – a simple cheek swab – may also be used to understand how your body processes certain medications, why past drugs failed, and whether ketamine is a reasonable next step.
If you have never had a full evaluation, or if medicines were stopped too soon, your provider may first complete or adjust standard care. Ketamine is most useful when the record already shows that traditional options were given a fair chance.
Some people do not fit the classic “two failed antidepressants” story and may still be considered:
Patients with mixed anxiety and depression who have cycled through several medication classes.
People with PTSD whose nightmares or startle response remain intense after standard care.
Individuals already in medication management who need an added option while their provider adjusts other medicines.
Patients who responded partly to antidepressants but still feel far from well.
Adolescents may be reviewed when a parent or guardian is involved and the clinical picture is clear. Older adults may be reviewed when medical issues are stable.
A comprehensive psychiatric evaluation is necessary to screen for contraindications. Here are the typical red flags.
Ketamine can cause a temporary increase in blood pressure and heart rate. People generally not considered candidates include those with:
Uncontrolled high blood pressure
Unstable or severe heart disease
A recent heart attack or stroke
Certain heart rhythm problems
Uncontrolled or untreated thyroid disease
Well-controlled conditions are not always a hard stop. Uncontrolled ones often are. If you have a heart or thyroid history, bring those records to your evaluation. Medical clearance is essential, and the provider will weigh your cardiology or endocrine notes before saying yes or no.
Individuals with a personal or family history of psychosis, schizophrenia, psychotic disorders, or psychotic breaks are generally not candidates.
If you have had brief psychotic symptoms only during severe depression or mania, tell your provider. That context matters. The decision is individual, but active psychosis is a clear red flag.
Uncontrolled seizure disorders can make ketamine unsafe. If seizures are well-controlled on a stable medicine plan, you may still be reviewed. If seizures are frequent or recent, ketamine is usually deferred until neurology care is more stable.
Always list every anticonvulsant you take. Some of those medicines interact with ketamine or change how you respond.
An active, uncontrolled substance use disorder – especially involving ketamine, PCP, or other dissociative drugs – is a significant contraindication. The potential for misuse and the complex interactions between substances make it unsafe to administer ketamine in this context. A period of stable sobriety is typically required.
A past history of substance use does not automatically disqualify you. Many people in recovery are still considered if they are stable, honest about their history, and have support in place. Hidden or ongoing use is the problem, not a past chapter you have already addressed.
A full review of your current medications is a critical part of the evaluation. Bring a complete list, including supplements. Never stop a prescribed medicine on your own to “qualify.” Interactions that need careful review include:
High-dose benzodiazepines, which may blunt the antidepressant effect
Other central nervous system depressants
Some stimulants
MAOIs and other psychiatric drugs
Pregnancy, or plans to become pregnant, is another reason to pause and talk in detail with your provider. Ketamine may not be appropriate in that setting. Share that information early so the plan can stay honest and safe.
Ultimately, whether you are a candidate for ketamine therapy depends on your diagnosis, treatment history, overall health, and individual circumstances. Ketamine may offer a new path forward for people who have not found enough relief from traditional treatments, but it is not appropriate or safe for everyone. A thorough psychiatric evaluation at True Self Mental Wellness can help determine whether ketamine is a reasonable option for you, identify potential risks or contraindications, and create a treatment plan tailored to your needs. If you have been struggling despite trying conventional care, an evaluation can be the first step toward understanding whether ketamine therapy may be right for you.
About the Author
Sarah Martin, BSN, RN
Your Path Forward Starts Here
August 28, 2026
