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THYQUIDITY Levothyroxine Sodium 100 ug/5mL Solution — NDC 66689-105-04 (Billing 66689-0105-04)

by VistaPharm, Inc. · 1 BOTTLE, GLASS in 1 CARTON / 100 mL in 1 BOTTLE, GLASS

This is a package of THYQUIDITY Levothyroxine Sodium 100 ug/5mL Solution from VistaPharm, Inc., no longer marketed, no longer in the FDA NDC Directory.

NDC 66689-0105-04
🏷️ FDA NDC (as labeled) 66689-105-04 billing pads the product segment with a zero
This package
Contains100 mL in 1 bottle, glass Pack sizes2 compare ↓
Product page 66689-0105-02 Also comes in: 100 mL 66689-105-02
Rx only Brand Discontinued Non-controlled ⚠ Discontinued by firm ⇄ Compare with another NDC
🗂️ FDA directory synced Oct 8, 2026 · this listing last changed Mar 13, 2024 · sources: openFDA · FDA label (DailyMed) · FDA Orange & Purple Book · First Databank · CMS NADAC, ASP, Medicare & Medicaid · RxNorm
📋 All sources & update times →

This page is curated, coded, and maintained by

Compiled from public FDA, CMS, DailyMed, NADAC, and related drug data sources. Editorial policy

NDC database record

One package, one record: these facts belong to NDC 66689-105-04 alone.

Record
FDA NDC Directory package listing · Human prescription drug
Code segments
66689 labeler · 105 product · 04 package
Barcode (UPC-A, from the NDC)
3 6668910504 8
FDA record last changed
Mar 13, 2024
⚠️
Other active recalls for Levothyroxine Sodium (different manufacturers) — 6 · tap to view
These affect other manufacturers’ products for the same ingredient — not necessarily the exact NDC on this page.
Class II · Aug 6, 2026 — Subpotent Drug (ACCORD HEALTHCARE, INC.) · FDA recall D-0776-2026
Class II · Aug 6, 2026 — Subpotent Drug (ACCORD HEALTHCARE, INC.) · FDA recall D-0781-2026
Class II · Aug 6, 2026 — Subpotent Drug (ACCORD HEALTHCARE, INC.) · FDA recall D-0775-2026
Class II · Aug 6, 2026 — Subpotent Drug (ACCORD HEALTHCARE, INC.) · FDA recall D-0782-2026
Class II · Aug 6, 2026 — Subpotent Drug (ACCORD HEALTHCARE, INC.) · FDA recall D-0786-2026
Class II · Aug 6, 2026 — Subpotent Drug (ACCORD HEALTHCARE, INC.) · FDA recall D-0780-2026
Each entry is an official FDA enforcement report — look up any recall number in the FDA recall database ↗
⚠️
Excluded from the active FDA NDC Directory. The labeler reported this product as discontinued, so it is excluded from the active NDC Directory. The listing was last certified through Jul 2024. A label may still appear on DailyMed, but the NDC is no longer in the current FDA NDC Directory. Search the FDA NDC Directory ↗

Identity & classification

Regulatory identifiers FDA, NLM and CMS codes for this package

FDA NDC (as labeled) 66689-105-04
Product NDC 66689-105
11-digit billing NDC 66689010504
NCPDP billing unit ML — per mL (volume)
Application # NDA214047
Established class (EPC) Thyroxine [CS], l-Thyroxine
DEA schedule Non-controlled
Marketing category NDA
Marketing status Discontinued
FDA listing status Discontinued by firm (certified through Jul 2024)
Route ORAL
Dosage form SOLUTION
Substance LEVOTHYROXINE SODIUM

Drug-database identifiers Medi-Span GPI and First Databank GCN / HICL / AHFS classification

GCN Seq No 061499
GCN 97287
HICL code 002849
Ingredient (HICL) Levothyroxine Sodium
HIC1 code P
Therapeutic class — broad (HIC1) Endocrine System
HIC2 code P3
Therapeutic class — intermediate (HIC2) Drugs Affecting Thyroid Function
HIC3 code P3A
Therapeutic class — specific (HIC3) Thyroid Hormones
AHFS code 68:36.04.00
AHFS class Thyroid Agents
FDB label name THYQUIDITY 100 MCG/5 ML SOLN
FDB brand name Thyquidity
Legend status F — Federal legend — prescription drug or device
Quick answers
  • GSN (GCN sequence number): 061499
  • GCN: 97287
  • HICL (First Databank): 002849
  • AHFS class code: 68:36.04.00
Why two NDCs? The FDA registers this code as 66689-105-04 — a 5-3-2 layout, and that's what's printed on the package and shown on DailyMed. For insurance claims, every NDC is standardized to a uniform 11-digit 5-4-2 format by adding a zero to the product segment → 66689-0105-04. Same drug, same package — only the format differs.
Where does this data come from?
Identifiers from the FDA openFDA NDC Directory and Structured Product Labeling; RxCUI from RxNorm (NLM); GPI from Medi-Span; GCN / HIC / AHFS / legend from First Databank.

Clinical

Label name THYQUIDITY 100 MCG/5 ML SOLN Ingredient Levothyroxine Sodium
📖 What it is MedlinePlus · NLM

Levothyroxine is used to treat hypothyroidism (condition where the thyroid gland does not produce enough thyroid hormone). It is also used with surgery and radioactive iodine therapy to treat thyroid cancer. Levothyroxine is in a class of medications called hormones. It works by replacing thyroid hormone that is normally produced by the body. Without thyroid hormone, your body cannot function properly, which may result in poor growth, slow speech, lack of energy, excessive tiredness, constipation, weight gain, hair loss, dry, thick skin, increased sensitivity to cold, joint and muscle pain, he...

Read the full MedlinePlus article ↗
📗 Our plain-language guide HelloPharmacist
  • It replaces thyroid hormone when your thyroid doesn’t make enough, a condition called hypothyroidism. Oral forms are also used with surgery and radioiodine for certain thyroid canc...
  • Oral forms are usually taken once a day on an empty stomach, about 15 to 60 minutes before breakfast, depending on the product. Keep calcium, iron and antacids at least 4 hours awa...
  • Full effect may take 4 to 6 weeks. Your doctor will check TSH and/or T4 blood tests to adjust your dose.
  • No. It doesn’t cause weight loss at normal doses if your thyroid is normal. Larger doses can be seriously toxic.
📖 Read our full Levothyroxine guide →
Where does this data come from?
Plain-language summary from MedlinePlus (U.S. National Library of Medicine); supplement & herbal interactions and nutrient depletion data from the Natural Medicines database; our full guide is HelloPharmacist editorial content.

Pricing

A drug doesn't have one price. Each row is a different public payment system, and none is what you'd pay at the counter — that depends on your insurance. The ⓘ on each row explains what it measures.

Price systemPer mLPer package
Retail pharmacies payNADAC · weekly Not in the retail survey — common for institutional, discontinued, or low-volume packs.
Medicaid paysCMS SDUD · 12 mo No recent Medicaid claims on file for this NDC — rare and low-volume NDCs are suppressed in the public data.
Medicare drug plans payPart D · quarterly No Part D plan price is available for this NDC in our data.
ℹ️
No price is published for this exact package yet. CMS surveys NADAC per package size, so a different pack of the same drug often has one.
Try another pack size: 100 mL
Where does this data come from?
NADAC (National Average Drug Acquisition Cost) is the CMS weekly pharmacy-acquisition-cost survey — what pharmacies pay. ASP (Average Sales Price) is the CMS Medicare Part B drug-payment file, published quarterly. Medicaid pays is computed by us from CMS State Drug Utilization Data (total reimbursed ÷ units, trailing 12 months) — gross of rebates and inclusive of dispensing fees, so it reflects what Medicaid paid, not an acquisition cost. Medicare drug plans pay is the median negotiated point-of-sale unit cost across plans listing this NDC in the CMS quarterly Prescription Drug Plan pricing files, before rebates. The VA pays is the federal contract price (FSS, and the statutory Big 4 ceiling where listed) from the VA National Acquisition Center pharmaceutical price file. All are free public government data; each measures a different payer, so the figures are not directly comparable.

Packaging — all sizes for this product

Package NDCDescription Per unit Per pack Marketing startMarketing endStatus
66689-0105-02 66689-105-02 Main listing 2 CARTON in 1 CARTON / 1 BOTTLE, GLASS in 1 CARTON / 100 mL in 1 BOTTLE, GLASS $1.39 / mL $277.15 2021-02-15 — Discontinued by firm
66689-0105-04 You're viewing this 1 BOTTLE, GLASS in 1 CARTON / 100 mL in 1 BOTTLE, GLASS — — 2021-02-15 — Discontinued by firm

Pack size FAQ

What quantity is in this package?
This package is listed by the FDA — 1 bottle, glass in 1 carton / 100 ml in 1 bottle, glass.
What NDC number is used to bill for this package of THYQUIDITY Levothyroxine Sodium 100 ug/5mL Solution?
Use the 11-digit billing form listed in the identifiers section of this page. Pharmacy and medical claims use the 11-digit form; the FDA label may print a shorter form of the same code.

Prices are the latest CMS NADAC pharmacy acquisition cost per NDC; per-pack figures are per-unit × pack quantity, shown only when the pack is denominated in the same measure NADAC prices.

Therapeutic equivalents

ProductLabelerPackNADAC/unitTEStatusPrice vs. this
Thyquidity 100 ug/5mL 82685-0360-01 Oliva 1 bottle — — FDA listed —
Thyquidity 100 ug/5mLthis 66689-0105-04 VistaPharm, 1 bottle — — Discontinued —
About this product: this is the brand-name version. We did not find an FDA-approved generic match for this exact strength, form and route.
Where does this data come from?
Equivalents are other NDCs of the same ingredient, form and route from the openFDA NDC Directory, ranked least-expensive-first by NADAC. Therapeutic-equivalence (AB) ratings come from the FDA Orange Book; biologics use the FDA Purple Book for biosimilar & interchangeable status.

Availability & generic status

🏛️
2020
First FDA approval
Nov 2020
📍
2026
Currently FDA-listed
6 years listed
🛡️
2031
Latest patent/protection listed
not a guaranteed launch date
🔒No FDA-approved generic found

We did not find an FDA-approved generic match for this exact strength, form and route. Patent/protection dates below may affect future generic timing.

🛡️ Latest patent/protection date listed: FDA patent/protection data lists protections through Aug 2031. This may affect when a full generic version becomes widely available, but it is not a guaranteed launch date.
📅 FDA approved Nov 30, 2020 RLD RS ⏳ ~4.8 yr to latest listed protection

Why the date isn’t exact: Generic timing can change because patents may be challenged, settled, licensed, added, removed, or worked around with a narrower label — and FDA approval does not always mean a pharmacy can get the generic today.

When could a generic Thyquidity arrive?

Our estimate: 2027 to 2028 a wide window

How sure: Toss-up. Still unsettled. Just as likely to slip as to hold.

Why then: The brand company and a generic maker settled their patent fight and agreed on when a generic can launch.

That is before the August 2031 date above, which is common: a court ruling or a deal with the brand’s maker often lets a generic in before the last patent runs out.

See the full forecast for generic Thyquidity →
Patents & exclusivity — FDA Orange Book
US 9050307 — drug product
2020 2022 2024 2026 2028 2030
Today
LOE
Substance patent Formulation patent Method-of-use patent Exclusivity Pediatric +6mo
🏛️FDA exclusivity
FDA-granted marketing protection. It’s separate from patents and may be shorter than patent protection.
🧪Product / substance patents
Patents covering the active ingredient, product, formulation, or related drug features.
🎯Method-of-use patents
Patents covering specific approved uses. These can sometimes be carved out with a “skinny label,” but not always.
🛈 What do these terms mean?
Patent
Legal protection listed in the Orange Book that may delay generic approval or launch. Issued by the U.S. Patent & Trademark Office.
Substance patent
Covers the active drug molecule itself — the hardest to design around. A generic generally can’t launch until it expires.
Formulation (product) patent
Covers a specific formulation or dosage form. A generic can sometimes work around it with a different formulation.
Method-of-use patent
A patent covering one specific approved use of the drug — not necessarily the whole molecule. A generic can sometimes launch with a “skinny label” that carves out the protected use and keeps the others.
Skinny label
A generic label that omits a still-patented use when the FDA allows it — letting a generic reach the market for the unprotected uses.
Exclusivity
FDA-granted marketing protection, separate from patents — e.g. 5-yr new chemical entity, 7-yr orphan drug, or a +6-month pediatric extension.
Paragraph IV
A generic applicant’s formal challenge to a listed patent. It can potentially lead to earlier generic entry, but often involves litigation or a settlement.
RLD / RS
Reference Listed Drug — the brand product the FDA uses as the reference for generic applications. Reference Standard — the product the FDA expects generics to compare against in bioequivalence testing.
TE / AB rating
FDA therapeutic-equivalence rating. An AB rating generally means the FDA considers a generic therapeutically equivalent to — and substitutable for — the brand.
LOE (loss of exclusivity)
The latest patent or exclusivity currently listed — the loss-of-exclusivity / latest-listed-protection date shown on this page. Paragraph-IV challenges and settlements can move the real date earlier; FDA approval and a manufacturer’s decision to market can move it later.

Built from the FDA Orange Book. The bars above are scaled to each protection’s expiry; the red LOE marker is the last one to lapse.

Listed patents (1)
PatentTypeUse codeExpires
US 9050307 ↗ Drug product — Aug 6, 2031
Common questions
Is there a generic version of THYQUIDITY 100 MCG/5 ML SOLN?
No FDA-approved generic equivalent is currently listed in the FDA Orange Book for THYQUIDITY 100 MCG/5 ML SOLN. Based on the patents and exclusivity currently listed, the Orange Book estimate is that full-label generic entry may be delayed until Aug 2031 — an estimate, not a guaranteed launch date. We expect the first generic Thyquidity between 2027 and 2028. See the forecast.
The FDA approved a generic — why can’t I get it at my pharmacy yet?
FDA approval and pharmacy availability are two different things. The FDA can approve a generic years before it actually reaches pharmacies, because the brand company may still hold patents or have a settlement that delays the launch. A manufacturer also has to choose to make and sell it, and have supply ready. So a drug can be “FDA-approved generic exists” and still be brand-only at the counter today.
Why do different websites show different generic release dates?
Generic availability is not based on one single date. Some sources use the first exclusivity expiration, some use the last product patent, and others use the latest method-of-use patent. Patent challenges, settlements, licenses, and label carve-outs can also change the real-world launch date. This page shows the underlying Orange Book dates so you can see why estimates may differ.
What does “FDA listed” mean?
It means the product appears in the FDA’s official NDC directory. That’s a good sign a product exists and is intended for the U.S. market, but on its own it does not confirm a pharmacy can fill it today. Where we have recent retail pricing data (NADAC) for a product, we label it “Availability likely” instead.
What does a patent or protection date mean here?
It’s the latest date currently listed in the FDA Orange Book for a patent or exclusivity on the brand product. It can affect when a full generic version becomes widely available — but it is not a guaranteed generic launch date. Generics sometimes arrive earlier (through a settlement or patent challenge) or later (a manufacturer still has to make and sell one).
What does “current Orange Book estimate” mean?
It means we are using the latest patent and exclusivity dates currently listed in the FDA Orange Book. It is not a guaranteed launch date.
Can a generic come out before the last patent expires?
Sometimes. A generic company may challenge a patent, settle with the brand manufacturer, receive a license, or obtain approval with a narrower label that avoids a patented use. In other cases, the last listed protection may delay full-label generic competition.
Can a generic come out after the listed dates?
Yes. Even after patents or exclusivity expire, a generic still needs FDA approval and a manufacturer must choose to market it. Supply, litigation, business decisions, or regulatory issues can delay actual availability.
What is the difference between patents and exclusivity?
Patents are legal protections usually issued by the U.S. Patent and Trademark Office. FDA exclusivity is marketing protection granted by the FDA. They are separate, and either one can affect generic timing.
Why are there multiple patent dates?
One drug can have several patents covering different things: the active ingredient, a formulation, a manufacturing process, or a specific approved use. That is why a page may show several expiration dates instead of one simple generic date.
Built from FDA Orange Book patent and exclusivity data. Dates are refreshed from public FDA data when available; the marker is max(latest patent expiry, latest exclusivity expiry). Paragraph-IV settlements and first-filer 180-day exclusivity can shift the real date; a method-of-use patent may allow an earlier skinny-label generic for non-protected indications. Generic launch timing is an estimate, not a guarantee.
Where does this data come from?
Patents and exclusivity from the FDA Orange Book (small-molecule drugs), refreshed from public FDA data. Generic launch timing is an estimate, not a guarantee.

Inactive Ingredients / Excipients

Inactive ingredients, also called excipients, are components of the drug product other than the active ingredient. They may include fillers, dyes, coatings, preservatives, flavors, or other formulation ingredients.

🧪 Avoiding an ingredient? See Levothyroxine inactive ingredients by manufacturer: every current product's list side by side, so you can ask your pharmacy for the version that does not list it.

Loading inactive ingredients from the official FDA label in the background. No external source is being called by this page request.
Where does this data come from?
Source: official FDA Structured Product Labeling (SPL) via DailyMed and the openFDA label index. Structured IACT rows and label-wide narrative are kept separate; availability and product-level specificity depend on the submitted label.

Inactive ingredient FAQ

Are inactive ingredients the same for every manufacturer?
No. Inactive ingredients can differ by manufacturer, dosage form, strength, and package / product version.
Why might an inactive ingredient be missing?
Some SPLs do not provide a complete structured inactive-ingredient list, and older or unusual labels may only include the information in narrative text.
Can inactive ingredients matter?
Yes. They can matter for allergies, intolerances, dyes, gluten / lactose concerns, preservatives, and formulation differences — but confirm with a pharmacist or the manufacturer when it’s clinically important.

Manufacturer & labeler

LabelerVistaPharm, Inc.
Application holderJEROME STEVENS PHARMACEUTICALS INC
FDA applicationNDA214047 (NDA)
Labeler code66689
Product typeHuman Prescription Drug

More NDCs from VistaPharm, Inc. labeler code 66689

The labeler markets the product; the application holder owns the FDA approval. They’re often the same company but can differ (e.g. a repackager or an authorized generic). A mailing address / phone appears here when the manufacturer includes it in the product’s FDA label (not all do).
Where does this data come from?
Labeler, application holder and registered establishment from the FDA openFDA NDC Directory and Drugs@FDA; address/contact from the product’s FDA label.

Full prescribing information FDA SPL

The complete FDA label for this product — the official prescribing information, verbatim, section by section. Jump with a chip, search within the label, or expand everything.
📄 FDA label
📄 FDA label 19 words ▾

No FDA label is on file for this product yet. Labels load from openFDA / DailyMed and refresh weekly.

Source: FDA Structured Product Labeling, mirrored from DailyMed / openFDA.

Medicare Part D spend CMS · PART D · 2026 (Q1)

Medicare Part D (outpatient prescription) spending for Thyquidity — the program that covers self-administered drugs. 1 manufacturer.
⚠️ Drug-level data: CMS publishes Part D spending by drug, not by NDC — these figures combine every manufacturer, strength and package size sold under the name Thyquidity. That’s a different level of aggregation than the Medicaid card above, which is specific to this exact 11-digit NDC (pack size included), so the two aren’t directly comparable.
Period
Total Part D spend
$98.9K
Claims incl. refills
375
Beneficiaries
180
Spend / beneficiary
$549.35
Spend / claim
$263.69
Trend by period
💵 About the dollar figures: spending is what Part D plans paid before confidential manufacturer rebates, so the program’s real net cost is lower. A blank patient count means fewer than 11 people — CMS hides counts that small to protect privacy. Source: CMS Medicare Quarterly Part D Spending by Drug (data.cms.gov), updated quarterly.

About this NDC listing & data coverage

Finished prescription product No longer marketed (per FDA listing data)
What data is (and isn’t) available for this NDC — tap to expand
NDC identity (package / product / labeler codes) ✓ Available
Labeler ✓ Available
Product & package description ✓ Available
Marketing category & status ✓ Available
Active ingredient / dosage form / route ✓ Available
FDA label (SPL via DailyMed) — Not published for this NDC No structured label is linked to this listing in DailyMed/openFDA.
Package photos — Not published for this NDC No photo available yet for this listing.
Inactive ingredients (structured) — Not published for this NDC The labeler did not submit a structured excipient list, or no SPL is available.
NADAC pharmacy acquisition price (CMS) — Not published for this NDC CMS publishes NADAC only for NDCs reported in its retail-pharmacy survey.
Orange Book / therapeutic-equivalence data ✓ Available
HCPCS J-code billing crosswalk — Not published for this NDC Most self-administered / retail products have no J-code — that is normal.
Medicaid utilization (CMS SDUD) — Not published for this NDC CMS reports utilization only for NDCs with Medicaid claims above its privacy threshold.
“Not published” reflects what the public FDA / CMS / NLM sources provide for this exact package code — it is a property of the data feeds, not a judgment about the product.

Questions about this listing

Why is there no price listed?
The pricing shown on our NDC pages comes from CMS NADAC, a voluntary survey of retail community pharmacy invoices. CMS does not publish a NADAC for every NDC — packages outside the retail survey (institutional and hospital products, bulk packages, discontinued items, and many OTC items) may never receive one. A missing price reflects the survey's scope, not this product's actual cost, and does not mean the product is free or unavailable.
Why is there no full label on this page?
No structured FDA label (SPL) is currently linked to this NDC in DailyMed/openFDA. That can happen with older listings, certain OTC and repackaged products, and recently updated listings whose label has not yet propagated. The listing itself is still valid — this page shows everything the public feeds provide for this package.
What does the discontinued status mean for this NDC?
The labeler reported a marketing end date (or the listing was delisted), so this specific package is no longer actively marketed. Remaining stock may still be dispensed for a time, and the NDC stays valid for historical records and claims — but data feeds (pricing, labeling) typically stop updating for it. Other package sizes or other manufacturers' versions of the same medication may still be marketed — see the equivalents section where available.
Is the NDC printed on the package the same as the 11-digit billing NDC?
Yes, they identify this exact package in different formats. The form printed on the packaging and shown on DailyMed is the one the FDA registered. Insurance claims use a fixed 11-digit 5-4-2 format, so the short segment is padded with a leading zero and the dashes are dropped. The Identity section at the top of this page lists each form of this code.
Does this product come in other package sizes?
Yes — the FDA directory lists 1 other package presentation of this same product, including 1 bottle (66689-0105-02). Each has its own NDC and its own page — see the package list near the top of this page.
Who lists this product with the FDA?
VistaPharm, Inc. is the labeler of record for this NDC — the company under whose FDA-assigned code the package is listed. The labeler may be the manufacturer itself or a distributor marketing the product under its own code.
Do I need a prescription for this product?
This NDC is listed with FDA as a prescription product, so it is dispensed under a prescriber's order. Your pharmacist can tell you whether any over-the-counter forms of the same medication exist.
This page identifies an FDA-listed package (the NDC) and reports public regulatory and pricing data about the listing. It is reference information, not a medical recommendation — talk to your pharmacist or prescriber about your own medication.
Where does this data come from?
Listing facts (marketing category, packager status, marketing dates) from the FDA openFDA NDC Directory; label availability from DailyMed; pricing coverage from CMS NADAC; equivalence scope from the FDA Orange Book.
← 66689-0063-10 · VistaPharm, 66689-0106-50 · VistaPharm, →
For educational and professional reference only — not medical advice. Pricing reflects published NADAC and CMS ASP (free public data) and may differ from your acquisition cost; always verify before billing or dispensing.