Ibogaine and Traumatic Brain Injury (TBI): What the Research Shows

Traumatic brain injury (TBI) has no approved drug treatment for its long-term psychiatric and cognitive symptoms, which is why a 2024 Stanford study on ibogaine drew so much attention. Thirty special operations veterans with TBI from blasts and combat were treated with ibogaine and magnesium in Mexico. One month later their average disability score fell from 30.2 to 5.1, and tests showed better memory, concentration and impulse control. The results are early and uncontrolled, but they have made ibogaine one of the most discussed research compounds for brain injury.

Key takeaways

• TBI from blasts, falls or repeated head impacts can cause lasting problems with memory, focus, mood, sleep and impulse control.
• In the Stanford study, all 30 veterans had a history of TBI and repeated blast exposure.
• One month after ibogaine, disability fell to a level considered "no disability," and cognitive tests improved.
• Brain recordings (EEG) linked the improvements to changes in theta rhythms and in the complexity of cortical activity.
• This was a small study without a control group. Ibogaine is not an approved TBI treatment.

What traumatic brain injury does over time

A traumatic brain injury happens when a blow, jolt or blast wave disrupts normal brain function. Many people recover from a single mild concussion, but repeated injuries, common in soldiers, athletes and first responders, can leave long-term symptoms: forgetfulness, trouble concentrating, irritability, depression, anxiety, headaches, insomnia and impulsive anger. These symptoms often overlap with PTSD, which makes both harder to treat.

Current care focuses on rehabilitation and managing each symptom separately. There is no medication approved to reverse the functional and psychiatric effects of TBI.

The Stanford findings in detail

Published in Nature Medicine in January 2024, the study evaluated 30 male veterans before and after treatment at a clinic in Mexico. Each received oral ibogaine with intravenous magnesium to protect the heart.

• Function: average disability on the WHODAS 2.0 scale went from 30.2 to 5.1 one month after treatment.
• Mental health: PTSD symptoms fell by 88%, depression by 87% and anxiety by 81% on average.
• Cognition: formal testing showed improvements in concentration, information processing, memory and impulsivity.
• Safety: no serious adverse events and no heart rhythm problems were recorded; headaches and nausea were the most common complaints.

Lead researcher Nolan Williams, MD, said: "In addition to treating TBI, I think this may emerge as a broader neuro-rehab drug."

One participant told Stanford: "I wasn't willing to admit I was dealing with any TBI challenges. I just thought I'd had my bell rung a few times, until the day I forgot my wife's name. Since then, my cognitive function has been fully restored."

What changed in the brain

In July 2025, the same team published a follow-up in Nature Mental Health analyzing EEG and MRI data from the 30 veterans. Two findings stood out:

• Theta rhythms: veterans whose executive function (planning, focus, self-control) improved tended to show an increase in theta brain waves, which are associated with brain plasticity and learning.
• Cortical complexity: veterans whose PTSD symptoms decreased tended to show a reduction in the complexity of activity in the cortex, which may reflect a calmer, less hyper-alert brain state.

These are associations, not proof of cause, but they give researchers measurable targets to test in future trials. Ibogaine's long-acting metabolite, noribogaine, and its effects on neurotrophic factors in animal studies are other leading hypotheses.

Limits of the evidence

• No control group: without a placebo comparison, part of the improvement could come from expectations or the retreat environment.
• Small, specific population: 30 special operations veterans, all men.
• Short follow-up: the main results were measured at one month.

Texas ($50 million) and Arizona ($5 million, focused on neurological conditions) approved public funding in 2025 for clinical trials that should answer these questions.

Safety considerations for people with TBI

People with brain injuries need a careful evaluation before ibogaine:

• Seizure history: a history of seizures after the injury must be reviewed by a physician.
• Medications: anticonvulsants, antidepressants, sleep aids and pain medication can interact with ibogaine or affect the heart.
• Heart screening: ibogaine temporarily prolongs the QT interval, so an EKG, electrolytes and a cardiac review are essential.
• Alcohol and benzodiazepines: these must be addressed with a separate medical detox before treatment.

The Stanford protocol used intravenous magnesium as a cardiac protection. Whatever clinic you consider, ask exactly how your heart will be monitored and who will be in the room. Read ibogaine side effects and heart safety for more.

See how treatment works, what is included and who can apply in our ibogaine program for PTSD and trauma.

Frequently asked questions

Can ibogaine repair brain damage?

There is no evidence that ibogaine repairs damaged brain tissue. The Stanford study measured improvements in symptoms, function and brain activity, not structural repair. Animal research on neuroplasticity is promising but has not been confirmed in humans.

Is ibogaine approved for traumatic brain injury?

No. Ibogaine is not approved by the FDA for any condition. The Stanford results are from an early, uncontrolled study, and clinical trials are being funded to test them.

Can I have ibogaine after a concussion?

It depends on your symptoms, seizure history, medications and heart health. A physician must evaluate you individually. Recent or severe injuries usually need to stabilize first.

Do I need to be a veteran?

No. TBI also affects athletes, accident survivors and first responders. The published research was done in veterans, so results in other groups are less known.

How is ibogaine different from other psychedelics for TBI?

Ibogaine has a longer and more intense experience, acts on more brain systems at once and carries a specific cardiac risk, so it requires medical monitoring that substances like psilocybin usually do not.

References

• Cherian, K. N. et al. "Magnesium–ibogaine therapy in veterans with traumatic brain injuries." Nature Medicine, 2024.
• Lissemore, J. I. et al. "Magnesium–ibogaine therapy effects on cortical oscillations and neural complexity in veterans with traumatic brain injury." Nature Mental Health, 2025. DOI
• Stanford Medicine News Center. "Psychoactive drug ibogaine effectively treats traumatic brain injury in special ops military vets", January 2024 (updated July 2025).

Living with the effects of a brain injury? Our medical team can review your history confidentially and tell you honestly whether ibogaine is a safe option for you. Request your evaluation.