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How to Obtain LDN

How To Obtain Low Dose Naltrexone (LDN)


There are two basic approaches to obtaining LDN. The first involves getting a prescription for the drug from a physician and having it filled by a compounding pharmacy. The second involves purchasing 50 mg Naltrexone tablets from an online supplier and converting them yourself to LDN.

You can obtain a prescription for LDN online using the doctor featured here:


These are two worldwide lists of doctors who prescribe LDN:



If you don't see an LDN-prescriber near you on the above list, try contacting Crystal Nason. She maintains a private worldwide list of physicians who prescribe LDN and of pharmacies that compound it. Her e-mail address is


You may also try asking a nearby compounding pharmacist for the names of doctors who prescribe LDN.

If you still cannot find an LDN prescriber near you, Julia Schopick, award-winning author of Honest Medicine, has developed a program for convincing your doctor to prescribe LDN. For more information, visit:


For information about obtaining LDN in the United Kingdom, visit


You can find a number of pharmacies known to be reliable compounders of LDN listed at


A more extensive listing of pharmacies that compound LDN can be found here:


If you chose to use a U.S. pharmacy that is not on the list, make sure it belongs to an organization called Professional Compounding Centers of America.

The least expensive and perhaps the most convenient option for obtaining LDN is to purchase 50 mg Naltrexone tablets online without a prescription from such online suppliers as




This site lists other sources of LDN:


While it is technically illegal in the US to obtain Naltrexone without a doctor's prescription, the law is not enforced in the case of shipments to individuals in small amounts (sixty tablets or less) meant for your personal use.

At the present time, Naltrexone is manufactured by a number of different companies under the following trade names:
Revia (manufactured by Teva Pharmaceuticals in the USA)

Nalorex (manufactured by Bristol-Myers-Squibb in the UK)

Nodict (manufactured by Sun Pharma in India)

Naltima (manufactured by INTAS in India)

Narpan (manufactured by Duopharma in Malaysia)

Antaxone (manufactured by Pharmazam in Spain)

Celupan (manufactured by Lacer in Spain)

Narcoral (manufactured by Siton in Italy)

Nemexin, Revez, Naltrexona, and Naltrexonum (manufactured by Bristol-Myers-Squibb in Germany)
Making your own LDN avoids problems that sometimes arise when pharmacies compound LDN with fillers to which one is allergic or that cause delayed release of the Naltrexone. In addition, pharmacies cannot always be relied upon to compound LDN correctly, as this site illustrates:


Other advantages of making your own LDN include the fact that compounding is expensive and time consuming, and liquids are the preferred dosage form for children and for people who have difficulty swallowing capsules or tablets. Also, if your doctor is willing to prescribe Naltrexone, your health insurance is more likely to cover the tablet than the compounded form.

Once you have a supply of 50 mg Naltrexone tablets, you can convert them as needed to LDN. To do so, fill a graduated cylinder with 50 ml of distilled water (unlike tap or spring water, distilled water contains no impurities that could potentially react with and thus reduce Naltrexone's effectiveness). Instead of the graduated cylinder, you could arrive at 50 ml using a set of measuring spoons (do NOT use regular tableware). Just measure out three tablespoonfuls (45 ml) plus one teaspoonful (5 ml). Add the water to a 4 oz glass jar with a tight-fitting lid. Then add a 50 mg Naltrexone tablet. The tablet will mostly dissolve within half an hour or so. Naltrexone tablets contain about seven different fillers, some of which (like lactose) are water-soluble and some are not. Since not all of the tablet is soluble in water, instead of yielding a clear solution, the initial result will be a cloudy suspension. You may wish to shake it each time before use to evenly disperse all the undissolved particles. However, since Naltrexone itself is water-soluble, to avoid ingesting those fillers that are insoluble, some people prefer to draw off the clear liquid above the residue on the bottom of the jar. You can use a graduated baby medicine dropper to measure out the dose you need.

This video presents an alternate approach to making liquid LDN:


Graduated cylinders are available from Amazon.com. The baby medicine dropper should be available in the infant/baby section of your local pharmacy. If you ask politely and are lucky, the pharmacist may (as a gesture of good will) give you an empty 4 oz amber glass jar. Distilled water is sold by most pharmacies, as well as by supermarkets, hardware stores, and convenience stores.

Once a drug passes from a solid to a liquid state, its shelf life can decrease dramatically. According to pharmacist Dr. Skip Lenz, there are two types of liquid LDN, the kind you get from a pharmacy (which will have an added preservative), and the kind you make yourself (which will have no preservative). The pharmacy version should last 90 days in the fridge. The homemade version should not be kept for more that 30 days. Because at least one of the the fillers common to Naltrexone tablets (lactose) supports bacterial and fungal growth, homemade liquid LDN should be refrigerated at all times. The fresher the preparation, the better, and refrigeration goes a long way toward preserving that freshness. Also, I believe it would be a good idea to keep it from direct exposure to sunlight.

Because liquid Naltrexone has a very unpleasant taste, you may wish to disguise it in something like fruit or vegetable juice. I add it to a cup of luke warm, Stevia-sweetened Chamomile tea (a sleep aid).

The recommended dosage of LDN for the average adult is 4.5 mg (higher amounts are generally considered counterproductive). If you are using liquid LDN, that would equate to 4.5 ml. It should be taken between 9 pm and 3 am. To control for changes between Daylight Savings and Standard Time, some authorities recommend taking LDN between 10 pm and 2 am. For more information about LDN dosing, visit


If you have questions, comments, or suggestions, please feel free to contact me at


Very sincerely,

Dudley Delany, R.N., M.A., D.C.