Question 1

What is Low Dose Naltrexone (LDN)?

Accepted Answer

LDN uses naltrexone — an FDA-approved opioid antagonist — at doses roughly one-tenth of the standard 50mg. At these low doses (typically 1.5-4.5mg), naltrexone does not function as an opioid blocker. Instead, it briefly blocks opioid receptors at bedtime, causing a rebound increase in endorphin and enkephalin production. These natural peptides have powerful immune-modulating and anti-inflammatory effects.

Question 2

How does LDN work?

Accepted Answer

The leading theory is the "endorphin theory." By briefly blocking opioid receptors for a few hours at night, LDN tricks the body into producing more endorphins and met-enkephalins. These natural compounds modulate immune cell activity — calming overactive immune responses in autoimmune disease while enhancing immune surveillance. LDN also influences Toll-like receptor 4 (TLR4), which plays a role in neuroinflammation and chronic pain signaling.

Question 3

What conditions can LDN help with?

Accepted Answer

LDN is used off-label for a wide range of conditions including Hashimoto's thyroiditis, multiple sclerosis, rheumatoid arthritis, Crohn's disease, fibromyalgia, chronic fatigue syndrome, complex regional pain syndrome (CRPS), and certain dermatological conditions like eczema and psoriasis. It is also explored for mood disorders and general immune support. Your physician will assess whether LDN is appropriate for your specific condition.

Question 4

Why is it called "low dose" — what makes the dose important?

Accepted Answer

Standard naltrexone (50mg) is used to block opioid receptors continuously for addiction treatment. At low doses (1.5-4.5mg), the receptor blockade is brief and incomplete — lasting only 4-6 hours. This transient blockade is what triggers the compensatory endorphin surge. Taking too high a dose would block receptors continuously, eliminating the rebound effect and the immune-modulating benefits.

Question 5

What are the side effects of LDN?

Accepted Answer

LDN is generally very well-tolerated. The most commonly reported side effect is vivid dreams during the first 1-2 weeks, which typically resolves as the body adjusts. Some patients experience mild headache, mild nausea, or transient sleep disruption during the initial titration period. Serious side effects are rare. Your physician will start you at a low dose and increase gradually to minimize any adjustment effects.

Question 6

How long does LDN take to work?

Accepted Answer

Response timelines vary by condition. Some patients notice improvements in sleep, energy, and mood within the first 2-4 weeks. For autoimmune and inflammatory conditions, meaningful clinical improvement typically occurs over 2-3 months of consistent daily use. Some patients with complex conditions may need 4-6 months to experience full benefits. Consistent daily dosing at bedtime is essential for optimal results.

Modulate Your Immune System with LDN

Choose Your Plan

What's in the Box

LDN Capsules

Dosing Guide

Provider Access

How It Works

Complete Health Assessment

Physician Evaluation

Receive Your Medication

Gradual Optimization

Key Benefits

Immune Modulation

Inflammation Reduction

Chronic Pain Relief

Improved Sleep

Mood Support

Well-Tolerated

Frequently Asked Questions

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