How Many Ketamine Infusions Do You Need?

Short answer: Most people begin with a series of about six ketamine infusions over two to three weeks, then have occasional booster sessions to maintain the benefit. There is no single universal number, because it depends on your symptoms, how you respond, and the treatment plan. Here is how the number of sessions is actually decided.

The induction series

Ketamine is not usually a one-and-done treatment. The standard approach starts with an induction series, typically around six infusions given over two to three weeks, often two to three per week or one every couple of days. The idea is to deliver the sessions close together so each one builds on the last, which tends to produce a stronger and more durable effect than a single infusion. In studies of repeated infusions, more than half of participants responded and roughly a quarter reached remission by the end of a six-infusion course.

Maintenance and boosters

For many people, the gains from the initial series gradually fade over weeks to months, so treatment moves into a maintenance phase. This usually means occasional booster infusions, commonly spaced every few weeks to a few months depending on how long your relief tends to last. Some people need boosters rarely; others do better with a more regular rhythm. Over a year, the total number of infusions varies widely from person to person.

What affects your number

Several things shape how many sessions you will need:

• Your symptoms and their severity.

• How quickly and how strongly you respond.

• How long each round of relief lasts for you.

• Whether you pair treatment with therapy, which can help extend the benefit.

• Your provider's protocol, which varies between clinics.

This is why a good clinic personalizes the plan rather than promising a fixed number up front.

How it works at Ketamine Uplift

We built our approach around this reality. The Uplift Momentum Protocol is a structured eight-infusion course spread across twelve months: six induction infusions to build momentum, plus two planned booster infusions at months four and eight to help sustain it. And if Dr. Geoffery O'Neill feels you need more than six induction sessions to reach a breakthrough, he can extend the induction up to ten infusions at no additional cost. It is a clear framework with room to adjust to how you actually respond.

This article is for educational purposes only and is not medical advice. The right number of infusions is a clinical decision made with your provider.

The bottom line

Most people start with about six infusions over two to three weeks, then use occasional boosters to maintain the benefit, with the total tailored to how they respond. If you would like a clear picture of what a plan might look like for you, we are glad to walk you through it. Call us at (310) 280-4440.

Frequently asked questions

How many ketamine infusions do you need for depression?
Most treatment starts with an induction series of about six infusions over two to three weeks, followed by occasional boosters. The exact number depends on your symptoms, response, and your provider's protocol.

How long does the initial ketamine series take?
Usually about two to three weeks, often with two to three infusions per week or one every few days, so the initial course is completed fairly quickly.

Will I need ongoing booster infusions?
Many people do. Because the effect of a series can fade, boosters spaced weeks to months apart help sustain the benefit, timed to how long your relief lasts.

How many ketamine sessions does Ketamine Uplift include?
Our standard course is eight infusions over twelve months: six induction infusions, extendable up to ten at no additional cost, plus two planned boosters at months four and eight.