Compounded Liothyronine (T3) Sustained-Release
Compare quotes for compounded Liothyronine (T3) Sustained-Release, see whether a prescription is needed, what affects price, how fast quotes come back, and what happens after you submit.
About Liothyronine (T3) Sustained-Release
Compounded liothyronine (T3) provides slow-release capsules and custom microgram strengths that are not commercially manufactured — used by clinicians who add T3 to levothyroxine or need dye-free, filler-minimized thyroid capsules for sensitive patients.
Why liothyronine is compounded
Commercial liothyronine (Cytomel and generics) is an immediate-release tablet in 5, 25, and 50 mcg strengths. T3 has a short half-life, so immediate-release tablets can produce a peak-and-trough pattern some patients feel as jitteriness followed by an afternoon slump.
Compounding pharmacies prepare sustained-release (SR) liothyronine capsules that release T3 more gradually, in exact microgram strengths (for example 7.5 mcg or 12 mcg) that are not manufactured commercially. They can also omit dyes, lactose, and other excipients that a subset of thyroid patients cannot tolerate. Because commercial liothyronine exists, a compounded version requires the prescriber to specify what the patient needs that the manufactured tablet does not provide — typically the slow-release formulation or a non-standard strength.
Who is prescribed compounded T3?
Clinicians most often add T3 for patients on levothyroxine (T4) who have persistent hypothyroid symptoms despite normal labs, or for suspected poor T4-to-T3 converters. Major endocrine guidelines consider combination T4/T3 therapy investigational rather than routine, and some patients — especially those with cardiac disease or arrhythmia risk — are not candidates, so this is a decision to make carefully with your prescriber.
Compounded SR-T3 is also prescribed alongside compounded T4/T3 combination capsules and as an alternative for patients who react to fillers in commercial tablets. Absorption of compounded slow-release capsules can vary between pharmacies and formulations, so labs are typically rechecked after any pharmacy or formulation change.
Forms and strengths
The most common compounded form is a sustained-release capsule using a methylcellulose-type matrix, in strengths from 2.5 mcg up to prescriber-specified doses. Immediate-release capsules in custom strengths and combined T4/T3 capsules at custom ratios are also prepared.
If your prescription is written for a specific release profile or ratio, include that wording when requesting quotes — it determines how the pharmacy prepares and prices the capsule.
Typical compounded T3 pricing
Compounded sustained-release liothyronine is usually priced per 90-count capsule supply, and most patients pay roughly $30–$90 per month depending on strength and pharmacy. Insurance rarely covers compounded thyroid preparations.
Because thyroid therapy is refilled indefinitely, small monthly price differences compound: comparing quotes across licensed pharmacies once can save hundreds of dollars over a year of refills.
Key Questions Before You Request Quotes
Can I get Liothyronine (T3) Sustained-Release compounded?
Possibly. A licensed prescriber has to decide whether Liothyronine (T3) Sustained-Release is appropriate, and a licensed compounding pharmacy has to confirm it can legally prepare the requested strength, form, and quantity.
Is a prescription needed?
Yes. Patient-specific 503A compounding is based on a valid prescription order or prescriber notation for an identified patient.
What affects price?
Strength, dosage form, quantity, ingredient sourcing, sterile versus non-sterile preparation, shipping requirements, and each pharmacy's workflow can all change the final quote.
How fast can I get quotes?
For routable requests, Compounding Finder typically returns quote options by email within 1-2 business days after you submit the request details.
What happens after I submit?
We review the request, route it to eligible licensed pharmacies, collect available options, and email you the quoted choices. You decide whether to move forward with a pharmacy.
Source notes: FDA explains that compounded drugs are not FDA-approved finished products and describes 503A compounding around patient-specific prescriptions. See Compounding and the FDA and Section 503A.
Typical Liothyronine (T3) Sustained-Release Pricing
Prices vary by dosage, formulation, quantity, and pharmacy. The range above reflects listings currently tracked by Compounding Finder and is not a guaranteed quote. Submit a request below to get a personalized quote for your specific needs.
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Liothyronine (T3) Sustained-Release by State
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Why Compare Liothyronine (T3) Sustained-Release Prices?
Compounded medication prices vary significantly between pharmacies — sometimes by 300% or more for the exact same drug, strength, and formulation. Factors that affect pricing include the pharmacy’s location, their ingredient sourcing, and compounding volume.
By comparing quotes from multiple licensed pharmacies, you can find the best combination of price, quality, and convenience without spending hours making phone calls.
Frequently Asked Questions
What is the difference between Cytomel and compounded SR-T3?
Cytomel (liothyronine) is an FDA-approved immediate-release tablet in fixed strengths. Compounded sustained-release T3 is prepared by a compounding pharmacy to release more gradually and can be made in any prescriber-specified microgram strength, without dyes or specific fillers. The compounded version is not FDA-approved, and absorption can vary between formulations.
Can a compounding pharmacy just copy Cytomel?
No. FDA rules prohibit compounding what is essentially a copy of a commercially available drug. Compounded liothyronine must differ in a way the prescriber documents as clinically meaningful for you — most commonly the sustained-release formulation, a non-commercial strength, or an excipient allergy.
How much does compounded T3 cost?
Most compounded SR-T3 prescriptions fall roughly in the $30–$90 per month range depending on strength, capsule count, and pharmacy. Prices vary between pharmacies, so comparing quotes is worthwhile for a medication you will refill long-term.
Is T4/T3 combination therapy recommended?
Guidelines from major endocrine societies treat routine T4/T3 combination therapy as unproven, while acknowledging that a carefully monitored trial may be reasonable in select patients who remain symptomatic on levothyroxine alone. Whether it is appropriate for you is a conversation for your prescriber, with follow-up labs after any change.
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