Primary Keyword: how long do ketamine infusions last in the body

Secondary Keywords: ketamine metabolism, duration of ketamine effects, recovery after infusion

Meta Title: How Long Do Ketamine Infusions Stay in Your System? | KetaRevive

Meta Description: Discover how long ketamine remains active in your body, what affects recovery time, and how KetaRevive ensures safe, monitored care.

Introduction

One of the most common questions new patients ask is, “How long does ketamine stay in my system?” Understanding this helps set expectations and plan post-treatment recovery.

The Science of Ketamine Metabolism

  • Half-life: Intravenous ketamine has a short half-life—about 2.5 to 3 hours.

  • Clearance: The liver metabolizes ketamine into norketamine, which is excreted via urine within 24 hours.

  • Brain activity: Even after the drug clears, its neurochemical effects—especially on NMDA receptors—can continue for days, driving antidepressant benefits.

Phase/Typical Duration/What You May Feel

During infusion

40–60 minutes

Floating, lightness, mild dissociation

Phase/Typical Duration/What You May Feel

Post-infusion calm

2–6 hours

Relaxed, reflective, sometimes tired

Phase/Typical Duration/What You May Feel

Therapeutic benefit

3–14 days

Mood elevation, reduced pain, increased focus

Factors That Influence Clearance

  • Dosage and infusion rate

  • Individual metabolism

  • Hydration and liver function

  • Concurrent medications

Safety & Monitoring at KetaRevive

At KetaRevive, vital signs are tracked throughout treatment, and patients remain on-site until fully alert. Follow-up instructions include hydration, rest, and optional check-ins within 24 hours.

Takeaway

Although ketamine itself leaves the body quickly, its healing impact lasts much longer. KetaRevive focuses on both phases—ensuring rapid, monitored clearance and lasting wellness after each infusion.


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What to Expect from Ketamine Therapy: A Step-by-Step Patient Guide

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Esketamine vs Ketamine: Which Is Better for Depression?