Low Dose Naltrexone (LDN) Therapy | Immune & Inflammation Support Provided by ARSYNL Rx
At ARSYNL Rx, we offer Low Dose Naltrexone (LDN) therapy, prescribed and monitored by U.S.-licensed providers to support overall wellness, immune balance, and inflammatory response. LDN works by gently modulating the body’s endorphin and immune systems, which may help promote improved well-being when used as part of a physician-guided care plan. Through our secure telehealth platform, providers review your health goals and determine eligibility for Low Dose Naltrexone treatment. Each plan is personalized and shipped directly to your door. Results vary. Discover modern, medically supervised LDN therapy with ARSYNL Rx—where science meets individualized care.
100 in stock
Low-Dose Naltrexone (LDN) is a modified, low-dose formulation of naltrexone — a medication originally developed for opioid and alcohol dependence. When administered at significantly lower doses, naltrexone behaves very differently in the body, offering immune-modulating and anti-inflammatory support rather than opioid blockade.
LDN is increasingly used under medical supervision for individuals seeking support with chronic inflammation, autoimmune-related symptoms, neurological imbalance, and persistent pain patterns. Rather than suppressing immune activity, LDN helps regulate immune signaling, allowing the body to return toward balance.
LDN works by temporarily blocking opioid receptors for a short period. This brief blockade signals the body to increase production of its own endorphins and enkephalins — natural compounds that influence:
Immune system regulation
Inflammatory signaling
Pain perception
Mood and nervous system balance
As endorphin levels rise, immune cells become better regulated, helping reduce excessive inflammatory responses without suppressing immune function. This mechanism makes LDN fundamentally different from steroids, biologics, or traditional immune-suppressing medications.
Under provider guidance, Low-Dose Naltrexone may be considered for individuals seeking support related to:
Chronic inflammation or immune dysregulation
Autoimmune-related symptoms
Neuropathic or chronic pain patterns
Fatigue and low energy associated with inflammation
Neurological or mood-related imbalance
Because LDN works gradually and subtly, it is often used as part of a long-term wellness strategy rather than a short-term intervention.
When prescribed appropriately and used consistently, LDN therapy may support:
Reduced chronic inflammation and immune overactivity
Improved immune system balance and resilience
Support for chronic pain and tissue recovery
Enhanced sleep quality and energy levels
Improved mood stability and overall sense of well-being
Many individuals report that improvements develop progressively over several weeks, aligning with LDN’s role in restoring regulatory balance rather than forcing rapid change.
Unlike medications that suppress immune function, Low-Dose Naltrexone works by enhancing the body’s own regulatory systems. This distinction contributes to its favorable tolerability profile and suitability for long-term use when medically appropriate.
LDN does not:
Suppress immune defenses
Create dependency
Produce stimulant-like effects
Instead, it supports natural immune signaling, making it a compelling option for those seeking a gentler, system-wide approach.
LDN is typically prescribed at very low doses, often taken once daily, usually in the evening. Exact dosing is determined by a licensed provider based on individual health history, sensitivity, and response.
Because LDN influences neuro-immune pathways, consistency is essential. Providers may adjust dosing gradually to optimize tolerance and effectiveness.
If you have questions during therapy, support is always available through the Contact page or additional guidance in the FAQ section.
LDN is often used alongside other clinician-guided therapies depending on individual goals. ARSYNL Rx providers may discuss complementary options such as:
Glutathione Nasal Spray for antioxidant and cellular support
NAD+ Support Options for mitochondrial and metabolic health
Metformin for metabolic and longevity support
All recommendations are personalized and guided by licensed medical professionals.
ARSYNL Rx provides a structured, compliant approach to LDN therapy, including:
Secure online consultations
Licensed U.S. provider oversight
Transparent pricing
Discreet nationwide delivery
Ongoing medical support
Learn more about ARSYNL Rx’s mission and approach on the About page.
LDN works by temporarily blocking opioid receptors, which triggers an increase in the body’s natural endorphins and supports immune regulation, inflammation control, and overall wellness.
Mild, temporary effects may include vivid dreams, sleep changes, headaches, or nausea. These typically improve within the first 1–2 weeks of use.
Some individuals with autoimmune conditions may experience a temporary increase in symptoms, which usually resolves as the body adjusts to treatment.
Less frequent effects include mood changes, nighttime restlessness, or hypothyroid symptoms in patients whose thyroid medication needs adjustment.
LDN should NOT be used with opioid pain medications, as it may block their effects. Always inform your provider of all medications you are taking.