Ketamine has been an FDA-approved anesthetic for many decades, but its potential for alleviating depression symptoms was discovered recently. In 2019, the FDA recognized and approved Spravato (esketamine) for the treatment of RTD (treatment-resistant depression).

Esketamine is a type of ketamine that’s used as a nasal spray. Its FDA approval was a key milestone in depression treatment as it was the only approved depression medication in many decades. During clinical trials, esketamine showed a response rate of a whopping 70%.

Administering Ketamine for Depression

Spravato is available through a restricted program. Each patient monitored carefully for two hours after treatment. The medication administered in a healthcare professional’s office, and patients shouldn’t drive or operate machinery for 24 hours after each treatment.

It’s crucial to mention that while Spravato is FDA-approved, it doesn’t cure depression. It’s the only option for individuals with treatment-resistant depression who haven’t responded to all other treatment options.

The Antidepressant Effect of Ketamine

Ketamine widely known for its anesthetic properties and used in the medical setting for many decades. Recent research has shown that it can produce quick and lasting antidepressant effects in individuals with TRD.

The specific mechanism by which ketamine acts on depression symptoms isn’t fully understood. However, researchers have proposed several theories. One popular theory revolves around ketamine’s ability to modulate glutamine activity. Glutamine signals are crucial in synaptic plasticity. This is the ability of your brain’s neurons to alter their connections and adapt to stimuli.

Ketamine triggers an increase in glutamine release and blocks certain glutamine receptors. This supports new synaptic connections and improves neuroplasticity. The result? Improved mood and cognition. So, how long does it take for ketamine to produce the desired effect after administration?

If you have TRD, that means you have tried several antidepressant medications and still don’t get relief. Your healthcare provider may recommend ketamine. In a recent study involving 41 patients with TRD, a single ketamine infusion lowered 27% of the patient’s depression levels by 22.3 points within 24 hours, while 5% of the patients achieved remission. Even a single dose of 0.5mg/k of ketamine helped reduce depressive symptoms in patients with RTD.

Is the Effect Permanent?

Note that the antidepressant effects of ketamine aren’t permanent. That means patients require repeated treatments. The specific period it takes ketamine to relieve depression symptoms varies widely. In clinical trials, patients with TRD have experienced an onset of positive outcomes lasting three to 14 days.

How long does ketamine work for depression? If you’re considering ketamine for TRD treatment, it’s crucial that you first discuss its benefits and risks with your healthcare provider. Remember, ketamine offers relief for some patients, but it doesn’t cure depression.