Low Dose Naltrexone (LDN)

Calm inflammation. Ease everyday pain. Feel like yourself again.

Low Dose Naltrexone is a once-daily compounded capsule, reviewed by a US-licensed provider and delivered discreetly to your door. A gentle, widely studied option for people living with chronic pain, autoimmune symptoms, and low energy.

US-licensed providersCompounded to orderDiscreet home deliveryPrescription, medication & shipping included
Woman relaxed and smiling at home, free of painRightMD Low Dose Naltrexone capsules
Once nightly · compounded
The basics

What is Low Dose Naltrexone?

At its standard 50 mg dose, naltrexone is FDA-approved for addiction. At a much lower 0.5 to 4.5 mg dose taken nightly, it works differently: it nudges your body to make more of its own endorphins and helps quiet the overactive immune signaling (via the TLR4 receptor) linked to inflammation. Because it is not sold at these strengths, it is custom-compounded for you.

RightMD Low Dose Naltrexone bottleCompounded to your strength

0.5 to 4.5 mg

A fraction of the standard 50 mg dose, built up gradually by your provider.

Taken once nightly

Most people take it before bed. Simple to fit into a daily routine.

Custom-compounded

Made to order by a licensed compounding pharmacy in your prescribed strength.

Off-label use

Prescribed at a provider's discretion. Not FDA-approved at these low doses.

The science, made simple

How LDN is thought to work

Two well-described pathways help explain why a tiny nightly dose can have a body-wide effect.

LDN blocksbrieflyreboundMore endorphins
Pathway 1

An endorphin rebound

The brief nightly block prompts your body to make more of its own endorphins and enkephalins. Many people associate higher endorphin activity with steadier mood, energy, and a calmer response to pain.

Overactivemicrogliavia TLR4Calmer cell,less inflammation
Pathway 2

Calmer neuroinflammation

By acting on the TLR4 receptor, LDN is thought to quiet overactive microglia, the immune cells of the nervous system. Lowering that low-grade inflammation is why LDN is studied in pain and autoimmune conditions.

These mechanisms are well described in the research literature. How much each contributes to any individual's experience is still being studied.

What it is used for

What people talk to a provider about LDN for

LDN is used off-label, meaning a provider may consider it for uses beyond its original approval. People most often ask about it in these areas. Whether it is right for you is a clinical decision made after reviewing your health.

Chronic & nerve pain

Including fibromyalgia, nerve pain such as CRPS and neuropathy, and migraine prevention. The most studied use.

Autoimmune conditions

Discussed alongside Hashimoto's, rheumatoid arthritis, Crohn's and ulcerative colitis, MS, lupus, psoriasis, and Sjogren's.

ME/CFS & low energy

For ME/CFS (chronic fatigue syndrome) and the persistent feeling of running on empty.

Long COVID & post-viral

Early research is exploring LDN for lingering fatigue and brain fog after a viral illness.

Inflammatory & immune

Where low-grade, body-wide inflammation plays a role, including MCAS and conditions like endometriosis.

Mood, focus & sleep

Explored as an add-on for mood, depression support, and sleep, within a broader wellbeing plan.

LDN is studied for these uses, not proven to treat or cure them. Evidence is strongest for chronic pain and varies by condition. Your provider will discuss what is realistic for your situation.

Healthy woman enjoying the outdoors in warm light

Care that fits into your day, not the other way around

No waiting rooms and no in-person visit. Complete a secure online intake, get reviewed by a licensed provider, and have your medication delivered, with easy refills and dose-adjustment support along the way.

Start my online visit
Dosing

Start low, go slow

LDN is introduced gradually so your body can adjust comfortably. Here is the RightMD build-up to a 3 mg maintenance dose, taken once each night.

Weeks 1-2
0.5mg

A gentle starting dose to ease in.

Weeks 3-4
1mg

First step up, taken once before bed.

Weeks 5-6
1.5mg

Continuing the gradual build.

Weeks 7-8
2.25mg

Easing toward your maintenance dose.

Week 9+
3mg

Your maintenance dose for the rest of the 90-day supply.

This gentle build to a 3 mg maintenance dose lets your body adjust comfortably, and your provider can go slower if you need to. Vivid dreams early on? Switching to a morning dose usually settles it.

Already established on LDN? Capsule strengths up to 4.5 mg are available for returning patients continuing an existing regimen.
We make it simple for you

How it works

From first click to front door in four straightforward steps. Most people finish the online visit in just a few minutes.

Patient on an easy video visit from home
1

Select your care

Choose Low Dose Naltrexone to begin your online visit.

2

Share your health history

Answer a short, private set of medical questions about your health and goals.

3

Provider review

A US-licensed provider reviews your information and, if appropriate, prescribes LDN.

4

Delivered to your door

Your compounded prescription is prepared and shipped discreetly, with easy refills.

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Safety

Generally well tolerated

At these low doses LDN is considered well tolerated for most people. Here is what to know, and what to tell your provider.

Possible side effects

  • Vivid or unusual dreams, most often in the first week
  • Changes in sleep, mild headache, or an upset stomach
  • A brief, mild increase in pain when starting, which usually passes
  • Effects are usually mild and tend to settle within one to two weeks
  • Switching to a morning dose usually resolves dream or sleep effects

Important to tell your provider

  • LDN should not be taken with opioid medications, as it can trigger withdrawal
  • It is usually paused before any surgery or procedure needing opioid pain relief
  • Share any thyroid medication, liver condition, or if you are pregnant or breastfeeding
  • Always follow the full directions from your provider and pharmacy
Frequently asked questions

LDN, answered honestly

Do I need a prescription for LDN?

Yes. LDN is a prescription medication. With RightMD you complete a short online visit, and a US-licensed provider decides whether it is appropriate for you. There is no separate paperwork for you to chase down.

Is LDN FDA-approved?

Naltrexone is FDA-approved at its standard 50 mg dose for alcohol and opioid dependence. At the low 0.5 to 4.5 mg doses described here, it is used off-label and is custom-compounded. Compounded medications are not reviewed by the FDA for safety or effectiveness, and your provider will talk through what that means for you.

How do I take it, and what is the dosing?

LDN is taken once a day by mouth, most often at night. With RightMD you start at 0.5 mg and step up gradually every two weeks (0.5, then 1, 1.5, 2.25, and 3 mg), reaching a 3 mg maintenance dose over about eight weeks. Your provider personalizes the exact schedule for you.

How long until I notice anything?

LDN is not a fast-acting medication. Many people begin to notice changes over four to eight weeks, and it can take up to about twelve weeks to feel the full effect as the dose is adjusted. Patience during the early titration is normal.

What are the side effects?

At low doses LDN is generally well tolerated. The most common effect is vivid dreams in the first week, along with possible mild sleep changes, headache, or stomach upset that usually settle quickly. Taking your dose in the morning instead of at night often resolves the dream and sleep effects.

What can I not take with LDN?

LDN should not be combined with opioid medications, including some prescription pain relievers and cough medicines, because it can cause withdrawal. It is also typically paused before surgery or procedures that need opioid pain relief. Tell your provider about all medications you take.

Why is LDN compounded?

Naltrexone is only manufactured commercially as a 50 mg tablet. The low doses used for LDN simply are not available off the shelf, so they must be specially prepared, or compounded, by a licensed pharmacy to the strength your provider prescribes.

Will I need any lab tests?

Possibly. Because naltrexone is processed by the liver, your provider may check your liver function before you start or from time to time during treatment, especially if you have any liver history. They will tell you what, if anything, is needed for you.

Who should not take LDN?

LDN is generally not appropriate for anyone currently using opioid medications, and your provider will take extra care if you are pregnant or breastfeeding, have significant liver concerns, or take thyroid medication. A licensed provider reviews your history to confirm it is a safe option for you.

Simple pricing

Two ways to start

Transparent, all-inclusive pricing. Every plan includes your US-licensed provider review, compounded medication, and discreet shipping. No insurance needed.

Best for beginners

1-Month Starter

A gentle first month to ease in

$99 / month
  • Includes 0.5 mg and 1 mg starter capsules
  • Begin your titration comfortably
  • Provider review and shipping included
  • A simple way to see how you respond
Start with 1 month
Best value

3-Month Supply

The full 90-day protocol

$199 / 90 days
  • The complete titration up to your 3 mg maintenance dose
  • Works out to about $66 a month
  • Fewer reorders, uninterrupted supply
  • Provider review and shipping included
Get 3-month supply

Compounded LDN is generally not covered by insurance, so pricing is simple and cash-based. Your provider confirms the right plan for you before anything ships.

Ready to feel more like yourself?

Start your online visit today and let a US-licensed provider decide if Low Dose Naltrexone is right for you. Plans from $99, with prescription, medication, and shipping included.

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This page is for general educational purposes only and is not medical advice. Low Dose Naltrexone is prescribed off-label at the low doses described here and is custom-compounded; the FDA does not review compounded medications for safety or effectiveness. LDN is studied for the uses mentioned but is not proven, and individual results vary. These statements have not been evaluated by the FDA, and LDN is not intended to diagnose, treat, cure, or prevent any disease. A prescription is issued only if a US-licensed provider determines it is appropriate after reviewing your health information; payment does not guarantee a prescription. Available in eligible states. Always follow the directions of your provider and pharmacy. If you have a medical emergency, call your local emergency number.