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Low Dose Naltrexone

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.

Fast free delivery
U.S. board certified physicians
Trusted medications, money back guarantee
$99.00 USD

What Is Low Dose Naltrexone (LDN) and What to Expect from Treatment?

Low Dose Naltrexone (LDN) is a modified, lower-dose version of the medication naltrexone, originally developed to treat opioid and alcohol dependence. When used in much smaller doses, LDN has been found to have unique immune-modulating and anti-inflammatory properties that may benefit individuals with chronic inflammation, autoimmune conditions, or pain-related disorders.

LDN works by temporarily blocking opioid receptors, which causes the body to increase its natural production of endorphins and enkephalins—neurochemicals that help regulate immune activity, reduce inflammation, and promote an overall sense of well-being. By gently influencing these pathways, LDN supports the body’s natural balance and healing processes without the suppressive effects of traditional immune-modifying drugs.

Potential benefits of Low Dose Naltrexone may include:

  • Reduced chronic inflammation and autoimmune-related flare-ups
  • Improved immune system regulation and resilience
  • Support for chronic pain management and tissue recovery
  • Enhanced energy, sleep quality, and overall mood
  • A safe, well-tolerated option for long-term immune and neurological support

Because LDN acts subtly and works with the body’s own regulatory systems, improvements often develop gradually over several weeks of consistent use. Its favorable safety profile and low risk of side effects make it a promising therapeutic option for those seeking natural support for immune, neurological, and inflammatory health.

How it works
Step - 1

Take the health questionnaire

100% online and confidential health intake form

Step - 2

Get your prescription

All prescriptions overseen by fully licensed and insured physicians

Step - 3

Get your meds

Fast free delivery from our accredited pharmacies

Why choose ARSYNL Rx Telemedicine?

US-licensed professionals

Experienced healthcare providers committed to your well-being.


No insurance needed

Upfront pricing, with no hidden fees.

Ongoing medical support

Ongoing assistance with your specific health condition

Frequently Asked Questions

How does it work?

Low Dose Naltrexone functions through transient opioid receptor blockade, which stimulates the body’s natural healing response

What are the side effects of LDN ?

Common (initial/transient):

  • Vivid dreams or sleep disturbances (typically improve in 7–10 days)
  • Mild headache or nausea
  • Temporary increase in autoimmune symptoms (rare, resolves)

Less Common:

  • Anxiety or mood changes
  • Restlessness at night
  • Hypothyroid symptoms if thyroid dose isn’t adjusted (in Hashimoto’s)

Note: LDN should not be taken with opioid pain medications. It may block their effect.

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