Low-Dose Naltrexone & Perimenopause

LDN is used around the world. It may help calm pain and an immune system that is stuck in “high alert.” It can be a powerful part of a complete health plan.

Have you heard of LDN? The full name is low-dose naltrexone. It is one of our favorite tools for the right patient.
Many women come to us feeling tired, achy, foggy, or inflamed. Hormones may be part of the problem. But hormones may not be the whole problem. LDN may help when the immune system is also out of balance.

What is LDN?

Naltrexone is an older medicine. The FDA approved it at a much higher dose for alcohol and opioid use disorders. That dose is often 50 mg or more.

LDN uses only a small part of that dose. Many LDN doses are about 0.5 to 4.5 mg. That is often about one-tenth—or even less—of the usual FDA-approved dose.

What does “off-label” mean? It means a licensed medical provider is using an approved medicine in a different dose or for a different health need. Off-label prescribing is common in medicine. LDN use for pain, immune problems, and women’s health is off-label.

How may LDN help?

Your immune system is meant to protect you. But sometimes it stays too active. It may send out too many “alarm” signals. These signals are called cytokines. Too many of them may add to pain, swelling, fatigue, and brain fog.
LDN may help turn down that alarm. It may calm some of the signals that keep the inflammatory cycle going. It may also help your body make better use of its own endorphins. Endorphins are natural chemicals that can support pain control, mood, and a healthy immune response.
LDN has been used or studied for more than 150 health conditions around the world. These include autoimmune illness, long-term pain, GI problems, and other conditions tied to inflammation. The amount of research is not the same for every condition, so we still choose it based on each patient’s needs.

A simple look at the “left” and “right” forms

You may hear people talk about the levo and dextro forms of naltrexone. Think of them like a left hand and a right hand. They are related, but they do not act in the exact same way.

The levo form is the prescription form. It mainly works at opioid receptors. At a low dose, it creates a short block. The body may answer by increasing its own endorphin signals.

The dextro form has been studied in the lab for its effect on TLR receptors. TLR receptors can start a cytokine—or inflammation—chain reaction. Blocking that signal may help quiet the chain. Research is still learning exactly how the LDN we prescribe affects these immune pathways. The simple point is that LDN may work in more than one way to help the body calm down and reset.

Why this matters for autoimmunity: In autoimmune illness, the immune system can attack the body by mistake. LDN may help calm some of the signals that keep that attack going. It does not cure autoimmune disease, but many patients report a major change in how they feel.

Why do we use LDN so often?

We have seen LDN help many patients. About 70% of our current optimization patients take LDN and are managed by Stacy Grissen, NP. It can be a powerful part of a full health plan.

Depending on the patient, we may use it to support care for:

• Body aches or long-term pain
• Autoimmune or immune-related problems
• GI issues and related inflammatory conditions
• Poor sleep
• Low energy
• Brain fog
• Mood changes
• Symptoms that did not fully improve when hormones were treated

Not every person will have the same result. We decide what we want LDN to help before we start it. Then we track that problem over time.

How does LDN fit with hormone care?

LDN is not a hormone. It does not replace estrogen, progesterone, testosterone, or thyroid care.
Hormones may help rebuild the base. LDN may help calm pain or immune signals that are still too loud. For some women, using both is what helps them feel like themselves again.

We still look at the full picture. Sleep, stress, thyroid health, blood sugar, food, strength, mood, and medicines can all change how a woman feels.

Why AP does not offer LDN by itself

We do not give LDN after a quick visit and then send you on your way. Patients begin in one of our AP optimization programs so we can prescribe, adjust, and manage it safely.

This lets me:

• Review your health history and all medicines
• Make sure you are not taking an opioid medicine
• Pick a safe starting dose
• Raise the dose slowly when needed
• Check for side effects
• Track what is getting better
• Decide if you should stay on it
• Fit LDN into your hormone and wellness plan

This is not just about writing a prescription. It is about using the medicine well.

The most important safety rule

LDN and opioids do not mix. LDN can block opioid pain medicine. It may also cause sudden withdrawal in a person whose body depends on opioids. Tell us about every pain pill, cough medicine, diarrhea medicine, surgery, or dental visit. Never stop an opioid or start LDN on your own.

LDN may also cause vivid dreams, upset stomach, headache, or sleep changes. Starting with a small dose and going up slowly may help. Your plan should be made for you.

Is LDN right for you?

LDN can be highly helpful. But it is not for everyone. We first ask: What are we trying to improve? Is there another cause we need to treat? Is LDN safe with your medicines? How will we know if it works?

That is why we begin LDN inside our optimization programs. The program gives us time to see the whole person—not just one symptom. After a patient completes an optimization program, LDN may continue through one of our continuation programs so care and monitoring do not stop.

Interested in LDN? Start with an AP hormone and wellness consultation in Encinitas. If LDN is a good fit, we can prescribe and manage it during an optimization program. After you complete optimization, you may continue LDN through one of our continuation programs.

Quick questions

Is LDN FDA-approved for perimenopause?

No. Using it for perimenopause, pain, or immune support is off-label.

Is LDN a hormone?

No. It works in a different way and may be used with hormone care.

How small is the dose?

Many LDN doses are 0.5 to 4.5 mg. The usual FDA-approved naltrexone dose is often 50 mg or more.

Can I take LDN with an opioid?

Usually no. This can be unsafe. Your prescriber must review all medicines first.

Can AP prescribe LDN without an optimization program?

Yes, after you have completed an AP optimization program. LDN may then continue through one of our continuation programs, where we can keep managing your prescription and response.

Do most AP optimization patients take it?

About 70% of our current optimization patients take LDN and are managed by Stacy Grissen, NP. Each plan is still made for the individual patient.

Will LDN work for everyone?

No medicine works for every person. We set a clear goal, start carefully, and track your response.