Dissociative Identity Disorder

Tovani does not treat this with ketamine

This page is here for honesty and completeness. Ketamine is not an appropriate treatment for Dissociative Identity Disorder, and in some cases it is contraindicated. Below is what the condition is and the treatments that genuinely help — and where, if at all, ketamine has any narrow role (usually only for a separate co-occurring depression). If you’re in crisis, call or text 988.

The short version

●Dissociative identity disorder (DID) involves two or more distinct personality states and gaps in memory, rooted in severe, early, repeated trauma.
●It is a disorder OF dissociation — the mind's compartmentalization taken to an extreme as a survival response to overwhelming experiences.
●The evidence-based treatment is long-term, phased, trauma-informed psychotherapy — safety and stabilization first, then careful trauma processing, then integration.¹ ²
●There is no medication that treats DID itself; medications target co-occurring depression, anxiety, or PTSD.
●Ketamine reliably induces dissociation as an acute effect — the opposite of what someone with a dissociative disorder needs.³
●Tovani does not treat DID; the right care is a trauma specialist experienced in dissociative disorders. This page is here for honesty and direction.

Clinical definition

DID is characterized by a disruption of identity involving two or more distinct personality states (an experience that may be described as possession in some cultures), accompanied by recurrent gaps in recall of everyday events, important personal information, or traumatic events inconsistent with ordinary forgetting. The disturbance causes significant distress or impairment and is not part of broadly accepted cultural or religious practice or due to substances. It is understood to develop from severe, chronic childhood trauma in the context of disrupted attachment, with dissociation serving as a defense against otherwise unbearable experience. It frequently co-occurs with PTSD, depression, and self-harm.

How it differs from related conditions

vs. Depersonalization/derealization disorder

A dissociative disorder of detachment from self or surroundings, without DID's distinct identity states and memory gaps.

vs. Complex PTSD

Shares a chronic-trauma origin and emotion-regulation difficulties, but lacks the distinct identity states that define DID.

vs. PTSD

Commonly co-occurs; DID involves a deeper, identity-level dissociative structure.

First-line treatments

Phased trauma-informed psychotherapy

The standard of care — stabilization and safety, then careful processing of traumatic memory, then integration — over an extended period.

Building safety and grounding

Reducing self-harm and dissociative crises and establishing grounding skills before any trauma work.

Treating co-occurring conditions

Medication for co-occurring depression, anxiety, or PTSD symptoms (not for DID itself).

A consistent therapeutic relationship

Continuity with a clinician experienced in dissociative disorders is central.

When standard treatments fail

Progress in DID is typically gradual and measured over years; "treatment resistance" is usually addressed by strengthening the phase-oriented frame — more stabilization, attention to safety, and an experienced dissociative-disorders specialist — rather than by adding medications or procedures. Dissociative agents such as ketamine are specifically not part of this pathway.

Where ketamine fits

This is a clear case where ketamine's mechanism is the problem, not the solution. Ketamine reliably produces dissociation as an acute effect — it was characterized as a model of dissociative states in classic human studies.³ For someone whose core disorder is pathological dissociation rooted in trauma, deliberately inducing more dissociation is contraindicated in spirit and counter-therapeutic: it risks destabilization rather than healing. There is no evidence base for ketamine in DID, and the established treatment is long-term, phased, trauma-informed psychotherapy.¹ ² Where a co-occurring depression exists, it is treated within that specialist framework — not with an at-home dissociative-agent program.

Where this fits with Tovani

Tovani does not treat dissociative identity disorder. Beyond the absence of any evidence, ketamine's dissociative effect runs directly counter to what a dissociative disorder needs, and at-home treatment cannot provide the specialized, stabilizing, long-term care DID requires. The right help is a trauma therapist experienced in dissociative disorders, who works in phases with safety first. We would point you there. If you are in crisis or unsafe, call or text 988.

Check eligibility Find treatment options The science behind ketamine

Frequently asked

Could ketamine help dissociative identity disorder?

No — and it runs the wrong direction. Ketamine reliably causes dissociation as an acute effect, which is the opposite of what someone with a dissociative disorder needs. There is no evidence for it in DID, and inducing more dissociation risks destabilization.

What actually treats DID?

Long-term, phased, trauma-informed psychotherapy: establishing safety and grounding first, then carefully processing traumatic memories, then working toward integration — with a clinician experienced in dissociative disorders. Medications treat co-occurring conditions, not DID itself.

Is DID the same as having "multiple personalities"?

It is the diagnosis behind that older phrase, but it is better understood as one identity fragmented into distinct states by severe early trauma, with memory gaps between them — a survival adaptation, not a character flaw. Treatment works toward greater integration and safety.

Does Tovani treat DID?

No. It requires specialized, long-term, stabilizing trauma care, and ketamine's dissociative effect is specifically the wrong tool. We would point you to a trauma therapist experienced in dissociative disorders rather than offer something that could worsen the dissociation.

References

International Society for the Study of Trauma and Dissociation 2011, Journal of Trauma & Dissociation — Guidelines for treating dissociative identity disorder in adults. (PMID 21391104)
Brand BL et al. 2013, Journal of Trauma & Dissociation — Predictors of change in the treatment of dissociative disorders. (PMID 23627481)
Krystal JH et al. 1994, Archives of General Psychiatry — Characterization of ketamine's acute dissociative effects in humans. (PMID 8122957)

Last reviewed by Dr. Ben Soffer, DO on June 2, 2026. This page is educational and not a substitute for clinical evaluation. A physician determines whether ketamine therapy is appropriate for your specific situation.