Low-dose naltrexone (LDN) has to be compounded because 50 mg is the only commercially available oral strength, and a 50 mg tablet cannot be split accurately to 1.5 mg or 4.5 mg.
Published LDN protocols most often start at 1.5 mg nightly and titrate toward 4.5 mg over one-to-two-week steps. That is a description of common practice, not an approved dose or a pharmacy recommendation.
A clean script specifies strength per unit, an immediate-release dosage form, any filler to avoid, quantity aligned to the titration, and the titration written out in the directions. Concurrent opioid use is the hard stop.
Low-dose naltrexone (LDN) is naltrexone prescribed at a small fraction of the 50 mg strength the FDA approved for opioid and alcohol use disorder. No manufacturer makes a 1.5 mg or 4.5 mg product, so every LDN prescription is compounded. A clean script specifies four fields: strength per unit, dosage form, quantity, and titration.
The only commercially available oral naltrexone strength is 50 mg. LDN protocols use roughly a tenth to a thirtieth of that, and a 50 mg tablet cannot be split accurately to 1.5 mg. Compounding is not a preference here. It is the only route to the dose.
Regulatory footing is straightforward. Naltrexone hydrochloride is a component of an FDA-approved drug product, which is one of the conditions under which a 503A pharmacy may compound from a bulk drug substance. That said, no compounded preparation is FDA-approved, and none of the conditions LDN is prescribed for carries an FDA-approved naltrexone indication at these strengths. Both facts belong in the conversation you have with the patient.
The evidence base is worth describing accurately. Published work on LDN is largely small randomized and open-label trials, most prominently in fibromyalgia and Crohn's disease, plus mechanistic work on transient opioid receptor blockade and endorphin response. That is a developing literature, not a settled one, and it does not support an efficacy claim from a pharmacy.
Published LDN protocols most often start at 1.5 mg nightly and titrate upward at intervals of one to two weeks toward a common target of 4.5 mg. Some protocols start at 0.5 mg for patients who are sensitive or who have a history of medication intolerance, and some go above 4.5 mg. Dosing is typically at bedtime.
Three practical points come up constantly at the pharmacy counter:
Sleep disturbance and vivid dreams are the most frequently reported early effects, and they are the most common reason a patient stops in week one. Telling the patient to expect the possibility, and that some prescribers move the dose to morning if it persists, prevents most of those discontinuations.
Titration works better written out than described. A sig that reads "1.5 mg nightly for 2 weeks, then 3 mg nightly for 2 weeks, then 4.5 mg nightly" tells the patient, the pharmacy, and the next clinician the same thing.
Concurrent opioid therapy is the hard stop. Naltrexone at any dose is an opioid antagonist. Screen for opioid use, including as-needed analgesics, before the first dose.
None of the above is an approved dose or a recommendation from this pharmacy. It is a description of what prescribing practice looks like in the published protocols, offered so the prescription and the pharmacy conversation line up.
Capsules are the standard, and the form JAD Family Pharmacy prepares. A capsule holds an exact strength, allows the prescriber to specify or avoid a particular filler, and is the simplest form for a fixed nightly dose.
Oral liquids are generally used where a prescriber wants sub-milligram titration, where the patient cannot swallow a capsule, or where the dose will change frequently. A liquid is specified as a concentration per milliliter rather than a strength per unit, and it carries a shorter beyond-use date than a solid.
Sublingual and topical preparations appear in some LDN practice, usually for patients with absorption concerns.
If a form other than capsules matters for a specific patient, call the pharmacy before you write. Confirming availability takes a minute and saves a transfer.
Every field below removes a reason for the pharmacy to call you back.
Drug and strength per unit. "Naltrexone HCl 1.5 mg capsules," not "LDN."
Dosage form, explicitly, including immediate release. LDN protocols use immediate-release preparations; a sustained-release capsule is a different medication.
Filler, if it matters. Patients with lactose intolerance, or who react to a specific excipient, are exactly why the preparation is being compounded. Say so on the script.
Quantity or days supply, aligned to your titration steps rather than a default 30.
Directions with the titration written out, including the target dose and the interval.
Refills, and whether the strength changes between them. A titration that spans three strengths is cleanest as separate prescriptions.
Your direct callback number. Formulation questions get resolved in one call when there is one to make.
JAD Family Pharmacy prepares most LDN prescriptions within 24 to 48 hours. Compounding is not same-day dispensing, and the number that matters more than turnaround is whether the pharmacy tells you proactively when an ingredient is delayed rather than letting the patient discover it.
Follow-through is where LDN regimens quietly end. It is a nightly medication, often for a chronic condition, frequently at a dose the patient is still titrating. Patients get free prescription delivery across Brevard County, including compounded preparations, and refills can be synchronized with the rest of their medications so the LDN is not the one prescription that lapses.
JAD Family Pharmacy is an independent 503A community and compounding pharmacy in Titusville, Florida, licensed by the Florida Board of Pharmacy and working with prescribing practices across Brevard County and throughout the state. LDN capsules are prepared to the strength on the prescription, verified before dispensing, and counseled on at pickup or delivery.
Prescribers reach a compounding pharmacist on a direct line rather than a queue, which is the point of the arrangement: strength, filler, and titration questions get settled before the prescription is written. Our page on low-dose naltrexone compounding covers what patients are told, and compounding services for prescribing practices covers how the partnership works. If you are evaluating compounding pharmacies more broadly, our guide to how to choose a 503A compounding pharmacy sets out what to verify first.
Ready to send one? You can partner with our pharmacy team and set up your workflow before the first prescription arrives.
No. Naltrexone is FDA-approved at 50 mg for opioid and alcohol use disorder. Compounded low-dose preparations are not FDA-approved, and the conditions LDN is prescribed for are off-label uses at these strengths.
Tablet splitting cannot produce an accurate 1.5 mg or 4.5 mg dose, and naltrexone tablets are not scored for it. Compounding is the only way to dispense a verified low-milligram strength.
No. Naltrexone is not a controlled substance. It is an opioid antagonist, so the clinical caution is concurrent opioid use, not scheduling.
No. Naltrexone blocks opioid receptors at any dose, so it should not be combined with opioid therapy, including as-needed analgesics. Screen before the first dose and document what the patient is taking.
JAD Family Pharmacy prepares most LDN prescriptions within 24 to 48 hours. Complexity, ingredient availability, and whether the strength is a first-time preparation all affect the timeline.
Send it the way you send any prescription: electronically, by fax, or by phone. Include the strength per capsule, the form, quantity, and the titration written out in the directions. Call first if the formulation is unusual.
JAD Family Pharmacy Clinical Team. Licensed pharmacists at JAD Family Pharmacy, an independent 503A community and compounding pharmacy in Titusville, Florida, serving prescribing practices and patients across Brevard County. Licensed by the Florida Board of Pharmacy.
This article is for informational purposes only and does not constitute medical advice or a recommendation for any specific preparation or dose. Compounded medications are not FDA-approved. Prescribing decisions remain the responsibility of the treating clinician.
Have a patient who needs LDN? Call JAD Family Pharmacy in Titusville and ask for a compounding pharmacist. We will confirm strength, form, and turnaround before you write the prescription.