How Long Does Ketamine Pain Relief Last?

Profile Chloe | calender 23 Jun 2025
Alright, let’s talk real. If you’ve been dealing with chronic pain, and nothing’s worked, you’ve probably heard people talk about ketamine therapy. Sounds wild at first, yeah, but for a lot of folks, it actually helps. Especially for pain that won’t back off, even with all the usual meds.

But the big question everyone asks is — how long does ketamine pain relief last? That’s the part nobody seems to give a straight answer on. So let’s get into it.

ketamine nasal spray


What Even Is Ketamine Therapy?

Ketamine used to be known as an anesthetic (and sometimes party drug, let’s be real), but now it’s making waves as a legit medical treatment for stuff like chronic pain, depression, and even anxiety.

You usually get it at a ketamine clinic, through IV infusions, sometimes injections, or ketamine nasal spray (like Spravato). And it’s not a one-and-done kind of thing. It’s often done in multiple sessions, especially early on.

How Long Does the Pain Relief Actually Last?

Here’s the real talk: it varies from person to person. Some feel relief for a few days, others say it lasts weeks or even months. A lot depends on:

📌 Your ketamine dose
📌 How often you getting it
📌 What kind of pain condition do you have
📌 If you're doing maintenance treatments
📌 Your overall health and meds

On average, though, after a round of ketamine treatment (like 6 infusions), some people feel pain relief for a few weeks to a couple of months. Then they may come back for boosters.

Is It Just for Pain?

Nah — ketamine for anxiety and depression is a big deal right now too. A lot of people with treatment-resistant mental health stuff are trying it when nothing else works.

And fun fact? Some of the ketamine clinics started for mental health patients, but now they’re helping pain patients too — especially for stuff like:

🔹 Nerve pain
🔹 CRPS (Complex Regional Pain Syndrome)
🔹 Fibromyalgia
🔹 Migraines
🔹 Back pain

What's the Ketamine Dosage for Pain?

Again, not a one-size thing. Ketamine dosage usually starts low, especially if it’s your first time. Most IV treatments are in the range of 0.5 to 1 mg/kg, but pain doses can be higher than mood disorder doses.

Your doc will look at your weight, your condition, how your body reacts — and adjust from there. That’s why it’s super important to do this under medical supervision. Not DIY.

Is Ketamine a Cure?

Not exactly. It’s not like you go in once, feel amazing forever, and that’s it. Ketamine is more of a reset — it gives your nervous system a break. For some, that break lasts long enough to function, work, live again.

But yeah, it can fade, and booster sessions are pretty common.

ketamine treatment


What About Cost?

Let’s be real, ketamine therapy cost can hit hard. Insurance doesn’t always cover it (though that’s slowly changing). Depending on the clinic and your location, you’re looking at:

📍 $350–$600 per infusion
📍 Spravato nasal spray sessions can be $700+
📍 Full treatment plans (6 sessions) can hit $3,000+
📍 Not cheap. But if you’ve tried everything and you’re still in pain, some people say it’s 100% worth it.

Can You Do It Too Often?

You shouldn’t overdo it, obviously. There’s a sweet spot — too much and you lose the effect or get tolerance. That’s why ketamine clinics carefully space out sessions, especially after the first “loading dose” phase.

Some folks do maintenance every few weeks or months. Others just come in when the pain gets bad again.

Final Word

So back to the main question — how long does ketamine pain relief last?
Could be a few days. It could be a few months. Everyone’s different. But if nothing else has worked, ketamine might give you that breathing room you’ve been chasing.

Just make sure you're doing it through a reputable ketamine clinic, with trained professionals who know what they’re doing. And keep it real with your provider about what you're feeling—good or bad.

Ketamine ain't magic. But for some people, it feels pretty close.