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Calcium Carbonate 10 gr (648 mg) (Antacid) Calcium Carbonate 10gr 648 mg Tablet, 1,000-count — NDC 0536-1206-10 (Billing 00536-1206-10)

by RUGBY LABORATORIES · 1000 TABLET in 1 BOTTLE, PLASTIC

This is a package of 1,000 tablets of Calcium Carbonate 10 gr (648 mg) (Antacid) Calcium Carbonate 10gr 648 mg Tablet from RUGBY LABORATORIES, marketed since Feb 2019 and currently FDA-listed; retail pharmacies pay about $0.0081 per tablet (NADAC). It is this product's only package size.

NDC 00536-1206-10
🏷️ FDA NDC (as labeled) 0536-1206-10 billing pads the labeler segment with a zero
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) 0536-1206-10
Product NDC 0536-1206
11-digit billing NDC 00536120610
NCPDP billing unit EA — each (per item)
RxCUI 577040
UNII H0G9379FGK
Application # M001
SPL Set ID f21c8cf7-45cb-492b-bf4a-462024a54569
DEA schedule Non-controlled
Marketing category OTC MONOGRAPH DRUG
Marketing status On market
FDA listing status Listed (active directory)
Marketing start 2019-02-28
Route ORAL
Dosage form TABLET
Substance CALCIUM CARBONATE

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

GPI-14 48300010000309
GPI class Calcium Carbonate Antacid
GCN Seq No 059510
GCN 25203
HICL code 001163
Ingredient (HICL) Calcium Carbonate
HIC1 code D
Therapeutic class — broad (HIC1) Biliary System/Gastro-Intestinal System
HIC2 code D4
Therapeutic class — intermediate (HIC2) Drugs Acting Principally On The Alimentary Tract
HIC3 code D4B
Therapeutic class — specific (HIC3) Antacids
AHFS code 40:12.00.00
AHFS class Replacement Preparations
FDB label name CALCIUM CARBONATE 648 MG TAB
FDB brand name Calcium Carbonate
Legend status O — Over-the-counter (OTC) drug or device
Quick answers
  • GSN (GCN sequence number): 059510
  • GCN: 25203
  • GPI-14 (Medi-Span): 48300010000309
  • HICL (First Databank): 001163
  • AHFS class code: 40:12.00.00
  • RxCUI (RxNorm): 577040
Why two NDCs? The FDA registers this code as 0536-1206-10 — a 4-4-2 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 labeler segment → 00536-1206-10. 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 Calcium compounds class.

Drug family (ATC) Calcium compounds, Calcium
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

Label name CALCIUM CARBONATE 648 MG TAB Ingredient Calcium Carbonate
📗 Our plain-language guide HelloPharmacist
  • Most often it's an antacid. It relieves heartburn, acid indigestion, sour stomach and upset stomach tied to those symptoms. A few supplement products have other uses, like bone sup...
  • What is calcium carbonate usually used for?
  • You chew it when symptoms come on. Many labels say to chew or crush the tablets completely and not swallow them whole. The number of tablets varies by product, so read your label o...
  • Many labels say not to use the maximum dose for more than 2 weeks unless a doctor is supervising you. If your symptoms last longer than 2 weeks, check in with your doctor.
📖 Read our full Calcium Carbonate guide →

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 eaPer package
Retail pharmacies payNADAC · weekly $0.008 $8.10 / 1000 tablets
Medicaid paysCMS SDUD · 12 mo $0.1291 $129.10 / 1000 tablets
Medicare drug plans payPart D · quarterly No Part D plan price is available for this NDC in our data.
NADAC price history (per ea) — tap or hover for the price & month
Dec 2025 Mar 2026 Jun 2026 Sep 2026 $0.008 $0.008
▲ Up 4% over the last 10 months.
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
00536-1206-10 You're viewing this Main listing 1000 TABLET in 1 BOTTLE, PLASTIC 2019-02-28 — Active

Therapeutic equivalents

ProductLabelerPackNADAC/unitTEStatusPrice vs. this
Calcium Carbonate 10 gr (648 mg) (Antacid)this 00536-1206-10 RUGBY 1000 tablets $0.008 — Availability likely —
Antacid 648 mg 17714-0025-01 Advance 100 tablets — — FDA listed —
Calcium Carbonate 10 gr (648 mg) 70369-0004-01 CitraGen 1000 tablets — — FDA listed —
Calcium Carbonate 10 gr (648 mg) (Antacid) 71610-0301-60 Aphena 90 tablets — — FDA listed —
Calcium Carbonate 10 gr (648 mg) (Antacid) 73057-0377-08 Ulai 100 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

🏛️
2019
On the market since
Feb 2019
📍
2026
Currently FDA-listed
7 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.

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.

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

LabelerRUGBY LABORATORIES
FDA applicationM001 (OTC MONOGRAPH DRUG)
Labeler code00536
First marketedFeb 2019
Product typeHuman Otc Drug
Portfolio149 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 📦 Storage and Handling 🧪 Active Ingredient 🧪 Inactive Ingredients 🎯 Purpose 📄 Ask a Doctor Before Use If 📄 Ask a Doctor or Pharmacist Before Use If 📄 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 13 words ▾

Uses relieves acid indigestion heartburn sour stomach upset stomach associated with these symptoms

⏱️ Dosage and Administration 28 words ▾

Directions take one to four tablets daily do not take more than 4 tablets in 24 hours do not use the maximum dosage for more than two weeks

⚠️ Warnings 64 words ▾

Warnings Ask a doctor before use if you have kidney stones a calcium-restricted diet Ask a doctor or pharmacist before use if you are taking a prescription drug. Antacids may interact with certain prescription drugs. Stop use and ask a doctor if symptoms last more than 2 weeks. If pregnant or breast-feeding, ask a health professional before use. Keep out of reach of children.

📦 Storage and Handling 12 words ▾

Other information each tablet contains: calcium 260 mg store at room temperature

🧪 Active Ingredient 11 words ▾

Active ingredient (in each tablet) Calcium Carbonate 10 gr (648 mg)

🧪 Inactive Ingredients 12 words ▾

Inactive ingredients acacia, croscarmellose sodium, magnesium stearate, maltodextrin, microcrystalline cellulose, stearic acid

🎯 Purpose 2 words ▾

Purpose Antacid

📄 Ask a Doctor Before Use If 13 words ▾

Ask a doctor before use if you have kidney stones a calcium-restricted diet

📄 Ask a Doctor or Pharmacist Before Use If 21 words ▾

Ask a doctor or pharmacist before use if you are taking a prescription drug. Antacids may interact with certain prescription drugs.

📄 Stop Use and Ask a Doctor If 13 words ▾

Stop use and ask a doctor if symptoms last more than 2 weeks.

🤰 If Pregnant or Breast-Feeding 10 words ▾

If pregnant or breast-feeding, ask a health professional before use.

📄 Keep Out of Reach of Children 6 words ▾

Keep out of reach of children.

📄 Questions or Comments 12 words ▾

Questions or comments? (866) 562-2756 (Mon-Fri 8 AM to 4 PM EST)

📄 Package Label / Principal Display Panel 20 words ▾

NDC 0536-1206-10 Rugby ® Calcium Carbonate 10 gr (648 mg) ANTACID 1000 TABLETS Rugby Calcium Carbonate 10 gr Product Label

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

Medicaid utilization & spend

📍 This exact package only: Medicaid data is reported per full 11-digit NDC — labeler, product and pack size — so every number here is for this package alone, not the drug overall. Other pack sizes report separately.
💊 Pharmacy benefit only: These are Medicaid outpatient pharmacy claims, billed by NDC. They exclude the medical benefit — clinic- or hospital-administered drugs billed under HCPCS J-codes — so drugs used mostly that way (e.g. Avastin, Lucentis, Keytruda) can look low or missing here. That’s expected, not an error.
📅 Q1 2025 – Q1 2026 · 5 quarters of data
ⓘ The newest quarter is usually incomplete when first published; states restate recent quarters in later CMS releases, so the latest figures typically revise upward. State coverage-policy changes can also shift quarter-to-quarter totals.
Prescriptions last 4 qtrs
11.2K
Units reimbursed last 4 qtrs
918.4K
Gross reimbursed last 4 qtrs
$118.6K
Avg / prescription
$10.61
Avg / unit
$0.1291
Latest quarter Q1 2026
2.6KRx
Medicaid pays / ea
$0.1291
gross reimbursed
vs
NADAC / ea
$0.0081
acquisition cost
=
Spread
+$0.1210
+1494% vs cost
What Medicaid paid per ea (before rebates; includes the pharmacy’s dispensing fee) compared with NADAC — the average price pharmacies pay to buy the drug. A positive spread means Medicaid reimbursed more than the purchase price, before manufacturer rebates.
Fee-for-service vs managed care ⓘ
88% FFS 12% MCO
Fee-for-service · 9,802 Rx Managed care · 1,374 Rx
State Medicaid map
Alaska: no data reported AK Maine: no data reported ME Washington: 35,021 units · 448 per 100k residents WA Idaho: no data reported ID Montana: no data reported MT North Dakota: no data reported ND Minnesota: no data reported MN Wisconsin: 34,824 units · 589 per 100k residents WI Michigan: no data reported MI New York: no data reported NY Vermont: 770 units · 119 per 100k residents VT New Hampshire: 384 units · 27.4 per 100k residents NH Oregon: 10,653 units · 252 per 100k residents OR Nevada: no data reported NV Wyoming: no data reported WY South Dakota: no data reported SD Iowa: no data reported IA Illinois: no data reported IL Indiana: no data reported IN Ohio: 65,708 units · 558 per 100k residents OH Pennsylvania: no data reported PA New Jersey: 7,279 units · 78.4 per 100k residents NJ Massachusetts: 5,680 units · 81.1 per 100k residents MA California: 723,484 units · 1,857 per 100k residents CA Utah: no data reported UT Colorado: no data reported CO Nebraska: no data reported NE Missouri: no data reported MO Kentucky: no data reported KY West Virginia: no data reported WV Virginia: 8,478 units · 97.3 per 100k residents VA Maryland: 3,743 units · 60.6 per 100k residents MD Connecticut: no data reported CT Rhode Island: no data reported RI Arizona: 11,142 units · 150 per 100k residents AZ New Mexico: no data reported NM Kansas: no data reported KS Arkansas: no data reported AR Tennessee: no data reported TN North Carolina: no data reported NC South Carolina: 4,561 units · 84.9 per 100k residents SC Delaware: no data reported DE Oklahoma: no data reported OK Louisiana: no data reported LA Mississippi: no data reported MS Alabama: no data reported AL Georgia: no data reported GA D.C.: 658 units · 96.9 per 100k residents DC Hawaii: 2,643 units · 184 per 100k residents HI Texas: 3,369 units · 11.0 per 100k residents TX Florida: no data reported FL
Units reimbursed · per 100k residents
11.01,857
gray = no data reported ⓘ
Colors are per 100,000 residents, so big states don’t automatically dominate. Tap or hover a state for its actual totals.
Tap or hover a state
…for its Medicaid breakdown
🏆 Top states by units · per 100k residents
1 California 1,857 /100k
2 Wisconsin 589 /100k
3 Ohio 558 /100k
4 Washington 448 /100k
5 Oregon 252 /100k
6 Hawaii 184 /100k
7 Arizona 150 /100k
8 Vermont 119 /100k
National units — by quarter
💵 About the dollar figures: “reimbursed” is what Medicaid paid pharmacies before confidential manufacturer rebates, so the program’s real net cost is lower than these numbers. Fee-for-service and managed-care claims are combined unless split above. Source: CMS State Drug Utilization Data; per-100k rates use 2023 Census population estimates.
← 00536-1202-07 · RUGBY 00536-1211-95 · Rugby →
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.