What is Low Dose Naltrexone (LDN)?
Naltrexone is a medication classified as an opioid antagonist, originally introduced in 1984. At standard doses (50 mg), it is used to block opioid drugs from binding to opioid receptors.
In the 1990s, physicians began prescribing much lower doses of naltrexone to help regulate the immune system and manage inflammatory and neurological conditions. This approach is known as Low Dose Naltrexone (LDN) therapy.
LDN:
Is not a controlled substance
Has no abuse potential
Is generally not used alongside opioid therapy
If you are currently taking opioid medications, speak with your healthcare provider or pharmacist before considering LDN therapy.
Who May Benefit from LDN Therapy?
LDN has been used in a wide range of chronic, inflammatory, autoimmune, and neurological conditions, including:
Chronic pain
Hashimoto’s thyroiditis
Graves’ disease
Parkinson’s disease
Multiple sclerosis
Arthritis
Fibromyalgia
Ulcerative colitis
Crohn’s disease
Irritable bowel syndrome (IBS)
Celiac disease
Psoriasis
Eczema
Lupus
PCOS
Restless Leg Syndrome (RLS)
Autism
Cancer
General inflammation
LDN has been reported in use for over 200 different medical conditions. If your condition is not listed, consult your healthcare provider to discuss whether LDN may be appropriate.
Why is LDN Only Available as a Compounded Medication?
Commercially available naltrexone is manufactured only as a 50 mg tablet. However, LDN therapy typically requires much smaller doses — usually between 0.25 mg and 6 mg per day.
Because these doses are not commercially available, LDN must be prepared by a compounding pharmacy.
Our pharmacy compounds LDN using USP-grade naltrexone powder sourced from FDA-registered and inspected facilities. Each prescription is individualized to help patients find their optimal “sweet spot” dose.
How Does LDN Work?
LDN works through multiple mechanisms that support immune balance and reduce inflammation:
1. Increases Endorphin Production
LDN temporarily blocks opioid receptors, stimulating the body to produce more natural endorphins. Endorphins:
Help relieve pain
Promote a sense of well-being
Reduce inflammation
2. Stimulates Opioid Growth Factor (OGF)
LDN increases OGF levels, which may:
Reduce autoimmune activity
Decrease inflammation
Help regulate abnormal cell growth
3. Modulates Immune Cell Signaling
LDN helps reduce inflammatory signaling through Toll-Like Receptor-4 (TLR-4). These immune “watchdog” cells, when overstimulated, can worsen inflammation and autoimmune responses.
4. Calms Glial Cells
Glial cells make up a significant portion of the nervous system’s immune function. When overactive, they can contribute to nerve inflammation. LDN helps keep these cells in a protective, balanced state.
5. Supports Dopamine Levels
LDN may increase dopamine, a neurotransmitter responsible for:
Mood regulation
Energy levels
Motivation
Cognitive function
Many experts report improvement in a high percentage of patients treated with LDN.
How Does LDN Work?
Traditional dosing protocols started with:
1.5 mg at bedtime for 1 week
3 mg at bedtime for 1 week
4.5 mg at bedtime thereafter
However, modern practice recognizes that dosing must be individualized.
Current approaches may include:
Starting as low as 0.5–1 mg
Gradual titration based on patient sensitivity
Once-daily or twice-daily dosing
Slower titration for sensitive individuals
Each patient responds differently. Some experience benefits at lower doses, while others require careful adjustments.
Our pharmacists work closely with prescribers to create personalized titration schedules.
Possible Side Effects
LDN is generally well tolerated. Side effects are uncommon and usually mild.
Possible side effects include:
Vivid dreams (especially during the first few days or after dose increases)
Headache
Gastrointestinal upset
Increased sensitivity to thyroid medication
Patients taking thyroid medication should monitor symptoms carefully and adjust dosing under medical supervision.
How Long Does It Take to Work?
Response time varies depending on the condition and the individual.
Many patients notice improvement within 1–2 months
Maximum benefit may take up to 8 months of consistent therapy
Patience and proper dose titration are key to success.
Available Compounded Forms
LDN is available in customized formulations, including:
Capsules
Flavored oral suspensions (almond oil, olive oil, or MCT oil bases)
Transdermal cream
Your healthcare provider and pharmacist can help determine the most appropriate formulation for you.
Our Pharmacist’s Role
We provide:
Dosing consultations with prescribers
Individualized titration guidance
Patient counseling before and after dispensing
Ongoing support throughout therapy
Our pharmacists are trained in LDN therapy and serve as a trusted resource for both patients and providers.
Our Commitment to Quality
We are a PCAB-accredited compounding pharmacy. PCAB, through ACHC, ensures compliance with the highest quality and safety standards in pharmacy compounding.
Accreditation requires:
Comprehensive onsite inspections
Annual compliance verification
Adherence to USP <795> (non-sterile compounding)
Adherence to USP <797> (sterile compounding)
Our commitment is to provide safe, high-quality, individualized medications you can trust.
