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Nauzene Sodium Citrate 230 mg Tablet, Chewable — NDC 52389-0242-56 package photo
Label image from the product's FDA listing (DailyMed) — may show a different pack size or an older label revision.

Nauzene Sodium Citrate 230 mg Tablet, Chewable — NDC 52389-242-56 (Billing 52389-0242-56)

by Kobayashi Healthcare International, Inc. · 4 BLISTER PACK in 1 CARTON (52389-242-56) / 14 TABLET, CHEWABLE in 1 BLISTER PACK

NDC 52389-242-56 (billing 52389-0242-56) is a package of Nauzene Sodium Citrate 230 mg Tablet, Chewable from Kobayashi Healthcare International, Inc., marketed since Jul 2000 and currently FDA-listed.

NDC 52389-0242-56
🏷️ FDA NDC (as labeled) 52389-242-56 billing pads the product segment with a zero
This package
Contains14 tablet, chewable in 1 blister pack Pack sizes5 compare ↓
Product page 52389-0242-10 Also comes in: 10 tablets 52389-242-10 10 tablets 52389-242-40 10 tablets 52389-242-50 14 tablets 52389-242-42
OTC On market Non-controlled ⇄ Compare with another NDC
🗂️ FDA directory synced Oct 1, 2026 · this listing last changed Jul 24, 2026 · 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

Identity & classification

Regulatory identifiers FDA, NLM and CMS codes for this package

FDA NDC (as labeled) 52389-242-56
Product NDC 52389-242
11-digit billing NDC 52389024256
RxCUI 2002800
UNII B22547B95K
UPC 0072959420420
Application # M001
SPL Set ID a60660b2-c5db-45a0-885f-de93e655380d
Established class (EPC) Anti-coagulant; Calculi Dissolution Agent
Mechanism of action Acidifying Activity; Calcium Chelating Activity
Physiologic effect Decreased Coagulation Factor Activity
DEA schedule Non-controlled
Marketing category OTC MONOGRAPH DRUG
Marketing status On market
FDA listing status Listed (active directory)
Marketing start 2000-07-08
Route ORAL
Dosage form TABLET, CHEWABLE
Substance TRISODIUM CITRATE DIHYDRATE
Quick answers for NDC 52389-242-56
  • RxCUI (RxNorm): 2002800
  • 11-digit billing NDC: 52389024256
Why two NDCs? The FDA registers this code as 52389-242-56 — 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 → 52389-0242-56. 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.

RxNorm drug class

This medicine belongs to the Salt solutions class.

Drug family (ATC) Salt solutions
Where does this data come from?
Therapeutic classes from RxNorm RxClass (U.S. National Library of Medicine) — Established Pharmacologic Class (FDA), ATC drug family (WHO) and mechanism of action, matched by this product’s RxCUI.

Clinical

🧪 What is this product?

Nauzene is an over-the-counter chewable tablet containing trisodium citrate dihydrate, an antacid salt. This product is typically used to neutralize stomach acid and relieve heartburn, acid indigestion, and upset stomach. As an OTC monograph drug, it is marketed under established FDA guidelines for antacid products rather than as an individually approved medication.

Supplement & herbal interactions

🌿 Drug–supplement interaction checker →
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 eachPer 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: 10 tablets 10 tablets 10 tablets 14 tablets
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 Marketing startMarketing endStatus
52389-0242-10 52389-242-10 Main listing 1 BLISTER PACK in 1 CARTON (52389-242-10) / 10 TABLET, CHEWABLE in 1 BLISTER PACK 2016-07-15 — Active
52389-0242-40 52389-242-40 4 BLISTER PACK in 1 CARTON (52389-242-40) / 10 TABLET, CHEWABLE in 1 BLISTER PACK 2000-07-08 — Discontinued by firm
52389-0242-42 52389-242-42 3 BLISTER PACK in 1 CARTON (52389-242-42) / 14 TABLET, CHEWABLE in 1 BLISTER PACK 2017-07-06 — Active
52389-0242-50 52389-242-50 5 BLISTER PACK in 1 CARTON (52389-242-50) / 10 TABLET, CHEWABLE in 1 BLISTER PACK 2006-10-01 — Discontinued by firm
52389-0242-56 52389-242-56 You're viewing this 4 BLISTER PACK in 1 CARTON (52389-242-56) / 14 TABLET, CHEWABLE in 1 BLISTER PACK 2019-11-16 — Active

Pack size FAQ

What quantity is in NDC 52389-0242-56?
NDC 52389-0242-56 is listed by the FDA — 4 blister pack in 1 carton / 14 tablet, chewable in 1 blister pack.
What NDC number is used to bill for this package of Nauzene Sodium Citrate 230 mg Tablet, Chewable?
Bill NDC 52389-0242-56 — the 11-digit billing format is 52389024256. Pharmacy and medical claims use the 11-digit form; the FDA label may print a shorter form of the same code.

Therapeutic equivalents

ProductLabelerPackNADAC/unitTEStatusPrice vs. this
WALGREENS UPSET STOMACH and NAUSEA RELIEF 230 mg 00363-1834-42 WALGREENS 42 tablets — — FDA listed —
Nauzene 230 mgthis 52389-0242-56 Kobayashi 14 tablets — — FDA listed —
Nauzene Chewables Ginger Honey 230 mg 52389-0677-42 Kobayashi 14 tablets — — FDA listed —
Emetrol Chewables 230 mg 65197-0204-42 WellSpring 42 tablets — — FDA listed —
Emetrol Chewables Orange 230 mg 65197-0410-60 WellSpring 60 tablets — — FDA listed —
Emetrol Chewables Mixed Berry 230 mg 65197-0420-60 WellSpring 60 tablets — — FDA listed —
CVS Health Nausea Relief 230 mg 69842-0423-42 CVS 14 tablets — — FDA listed —
QUALITY CHOICE Nausea Relief 230 mg 83324-0300-42 QUALITY 14 tablets — — FDA listed —
About this product: other versions of the same ingredient, strength and form are listed above, least expensive first, with FDA equivalence ratings where available.
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

🏛️
2000
On the market since
Jul 2000
📍
2026
Currently FDA-listed
26 years listed
🔒
·
No generic listed yet
brand only
ℹ️No FDA-approved generic found

We did not find an FDA-approved generic match for this exact strength, form and route.

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.

What it looks like

Color pink
ShapeRound
ImprintALVA
Size16 mm
ScoringNot scored
FlavorCherry
One label can cover several strengths, so colors may be combined — always confirm a loose pill against the dispensed prescription label or a pharmacist.
Where does this data come from?
Physical description (imprint, shape, color, scoring, coating) from this product’s FDA Structured Product Labeling (SPL), mirrored from DailyMed / openFDA.

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.

💡 Tap an ingredient (hover on desktop) to see what it is and why it’s used.

  • UNII Z0H242BBR1
    Aspartame is an artificial sweetener made from amino acids. It's added to medicines to improve taste, making bitter or unpleasant-tasting drugs easier to take.
  • UNII BUC5I9595W
    A natural flavoring derived from cherry fruit that gives the medicine its cherry taste. It helps mask bitter drug flavors and makes the medication more pleasant to take.
  • UNII IY9XDZ35W2
    Dextrose is a simple sugar derived from corn or other sources. It serves as a filler and sweetener in medicines to add bulk, improve taste, and help stabilize the medication's form.
  • UNII WZB9127XOA
    A synthetic red dye used to color medications and make them easier to identify. It serves as a colorant in tablets, capsules, and liquid formulations.
  • UNII 6YSS42VSEV
    Fructose is a natural sugar derived from fruits and plants. It's used in medicines as a sweetener and filler to improve taste and add bulk to tablets or syrups.
  • UNII 3NXW29V3WO
    Hypromellose is a plant-based thickener made from cellulose. It's used in medicines as a binder to hold ingredients together, a coating for tablets, and a thickener for liquids.
  • UNII 70097M6I30
    Magnesium stearate is a salt made from magnesium and stearic acid, a fatty substance. It's used in tablets and capsules as a lubricant and glidant to help ingredients flow smoothly during manufacturing and prevent sticking.
  • UNII 7CVR7L4A2D
    A starch-derived carbohydrate produced by breaking down corn, potato, or tapioca starch. It functions as a filler and binder to give the medicine bulk and texture, and sometimes as a mild sweetener or texture enhancer in powders and tablets.
  • UNII 461P5CJN6T
    Modified corn starch derived from cornstarch and treated with octenyl succinic anhydride. It acts as a thickener, stabilizer, and emulsifier to improve texture and prevent separation in the medicine.
  • UNII U725QWY32X
    Povidone K30 is a synthetic polymer made from petroleum. It acts as a binder to hold tablet ingredients together and as a disintegrant to help the tablet break apart in the stomach so the medicine can be absorbed.
  • UNII ETJ7Z6XBU4
    Silicon dioxide is a naturally occurring mineral used as a glidant and anti-caking agent. It helps powder ingredients flow smoothly and prevents clumping during manufacturing and storage.
  • UNII 4ELV7Z65AP
    Stearic acid is a fatty acid derived from plant or animal sources. It acts as a binder and lubricant in tablets and capsules, helping them hold together and flow smoothly during manufacturing.
  • UNII C151H8M554
    A natural sugar derived from sugar cane or sugar beets. It's used as a sweetener, filler, and binder to improve taste, add bulk, and help hold tablet or capsule ingredients together.

13 inactive ingredients listed in the exact product block matched to this NDC.

The official label also statesAspartame, bitter masking salt, dextrose, FDC Red No. 40 Lake, flavors, food starch-modified, fructose, hypromellose, magnesium stearate, maltodextrin, povidone, silicon dioxide, stearic acid, sucrose.

Label-section wording can be broader than the structured product block and may mention additional formulation ingredients.

Where does this data come from?
Data sourced from official FDA Structured Product Labeling (SPL) via DailyMed — ingredient classCode="IACT" elements from the exact product block matched by this NDC. Label-section narrative from DailyMed / the openFDA label index is shown separately when available.

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

LabelerKobayashi Healthcare International, Inc.
FDA applicationM001 (OTC MONOGRAPH DRUG)
Labeler code52389
First marketedJul 2000
Product typeHuman Otc Drug
Portfolio26 products on file
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.

FDA label — Drug Facts FDA SPL

The complete FDA label for this product — the official Drug Facts labeling, verbatim, section by section. Jump with a chip, search within the label, or expand everything.
🎯 Indications and Usage ⏱️ Dosage and Administration ⚠️ Warnings 🧪 Active Ingredient 🧪 Inactive Ingredients 🎯 Purpose 💬 Information for Patients 📄 Do Not Use 📄 Ask a Doctor Before Use If 📄 Ask a Doctor or Pharmacist Before Use If 📄 When Using This Product 📄 Stop Use and Ask a Doctor If 🤰 If Pregnant or Breast-Feeding 📄 Keep Out of Reach of Children 📄 Questions or Comments 📄 Package Label / Principal Display Panel
🎯 Indications and Usage 19 words ▾

Uses For the relief of nausea associated with upset/sour stomach, including that due to overindulgence in food and drink.

⏱️ Dosage and Administration 75 words ▾

Directions Adults: 2 - 4 tablets. Children: Consult a doctor for appropriate dosage. Chew tablets completely. Dosage may be repeated after 15 minutes, not to exceed 24 tablets in a 24-hour period unless advised by a doctor. Read all package directions and warning before use and use only as directed. Nauzene Chewables are intended for use by normally healthy persons only. Persons under 18 years of age should use only as directed by a doctor.

⚠️ Warnings 1 words ▾

Warnings

🧪 Active Ingredient 11 words ▾

Active ingredient (in each chewable tablet) Sodium citrate dihydrate 230 mg

🧪 Inactive Ingredients 26 words ▾

Inactive ingredients Aspartame, bitter masking salt, dextrose, FDC Red No. 40 Lake, flavors, food starch-modified, fructose, hypromellose, magnesium stearate, maltodextrin, povidone, silicon dioxide, stearic acid, sucrose.

🎯 Purpose 4 words ▾

Purpose Upset stomach reliever/antacid

💬 Information for Patients 90 words ▾

Other information Sodium content: 60 mg/tablet Store at room temperature. **Contents sealed: Each round pink Nauzene chewable tablet bears the identifying mark "ALVA" and is sealed in a clear plastic blister with a foil backing. Do not use if seal appears broken or if product contents do not match product description. Slight red speckling may occur over time.

Note: Nauzene is not intended as a substitute for a balanced nutritional diet or as an electrolyte replenishment. You may report serious side effects to the phone number provided under Questions? below.

📄 Do Not Use 14 words ▾

Do not use if you have Hereditary Fructose Intolerance (HFI). This product contains fructose.

📄 Ask a Doctor Before Use If 29 words ▾

Ask a doctor before use if you have diabetes because this product contains sugar are on a sodium-restricted diet have phenylketonuria because each chewable tablet contains 4.5 mg phenylalanine.

📄 Ask a Doctor or Pharmacist Before Use If 22 words ▾

Ask a doctor or pharmacist before use if you are taking any other medications. This product may interact with certain prescription drugs.

📄 When Using This Product 15 words ▾

When using this product, do not take more than 24 tablets in a 24-hour period.

📄 Stop Use and Ask a Doctor If 16 words ▾

Stop use and ask a doctor if nausea lasts more than two weeks or recurs frequently.

🤰 If Pregnant or Breast-Feeding 10 words ▾

If pregnant or breastfeeding, ask a health professional before use.

📄 Keep Out of Reach of Children 21 words ▾

Keep out of reach of children. In case of overdose, get medical help or contact a Poison Control Center right away.

📄 Questions or Comments 2 words ▾

Questions? 1-800-792-2582

📄 Package Label / Principal Display Panel 1 words ▾

PDP

Source: FDA Structured Product Labeling, mirrored from DailyMed / openFDA. Prefer the government’s original formatting? View this label on DailyMed ↗

About this NDC listing & data coverage

Over-the-counter (OTC) product
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) ✓ Available
Package photos ✓ Available
Inactive ingredients (structured) ✓ 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 — Not published for this NDC Applies only to products approved under an NDA/ANDA; many listings are out of scope.
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

Is this NDC FDA-approved?
An NDC listing does not by itself establish FDA approval — the NDC Directory records that a product is listed with FDA, not that it was reviewed and approved. This listing's marketing category is "Otc Monograph Drug". Products approved under an application carry an NDA, ANDA, or BLA number.
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.
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 FDA registers it as 52389-242-56, which is what is printed on the packaging and shown on DailyMed. Insurance claims use a fixed 11-digit 5-4-2 format, so the short segment is padded with a leading zero: 52389-0242-56, written without dashes as 52389024256. The Identity section at the top of this page lists every form of this code.
What do the three segments of this NDC mean?
In 52389-0242-56, the first segment (52389) is the labeler code FDA assigned to Kobayashi Healthcare International, Inc.; the middle segment (0242) identifies this specific product — its ingredient, strength, and dosage form; and the last segment (56) identifies this exact package size and type. Together they name one specific package of one specific product.
Is this package still being marketed?
Yes, per the latest FDA NDC Directory data on this page: this package is listed as actively marketed, with no marketing end date reported by Kobayashi Healthcare International, Inc.. Listing status can change — the directory data on this page refreshes weekly.
Does this product come in other package sizes?
Yes — the FDA directory lists 4 other package presentations of this same product, including 10 tablets (52389-0242-10), 10 tablets (52389-0242-40), 10 tablets (52389-0242-50). 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?
Kobayashi Healthcare International, 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 an over-the-counter product, so it does not require a prescription. Follow the package directions, and ask your pharmacist if you are unsure whether it is right for you.
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.
← 52389-0241-24 · Kobayashi 52389-0249-10 · Kobayashi →
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.