DUO Fusion
- Manufacturer
- Boehringer Ingelheim Pharmaceuticals, Inc. | Perrigo
- Effective date
- 2016-09-11
- Label type
- HUMAN OTC DRUG LABEL
- Version
- 3
- Source
- legacy-cache
- Hydrated at
- 2026-08-02 01:23:03
Label at a glance#
Contacts and useful links#
Label contents#
Full prescribing information#
OTC - ACTIVE INGREDIENT SECTION
Drug Facts
| Active ingredients (in each chewable tablet) | Purpose |
| Famotidine 10 mg | Acid Reducer |
| Calcium carbonate 800 mg | Antacid |
| Magnesium hydroxide 165 mg | Antacid |
OTC - WHEN USING SECTION
Use relieves heartburn associated with acid indigestion and sour stomach
WARNINGS SECTION
Warnings
Allergy alert: Do
not use if you are allergic to famotidine or other acid reducers
OTC - DO NOT USE SECTION
- if you have trouble or pain swallowing food, vomiting with blood, or bloody or black stools. These may be signs of a serious condition. See your doctor.
- with other acid reducers
OTC - ASK DOCTOR SECTION
- had heartburn over 3 months. This may be a sign of a more serious condition.
- heartburn with lightheadedness, sweating, or dizziness
- chest pain or shoulder pain with shortness of breath; sweating; pain spreading to arms, neck or shoulders; or lightheadedness
- frequent chest pain
- frequent wheezing, particularly with heartburn
- unexplained weight loss
- nausea or vomiting
- stomach pain
OTC - QUESTIONS SECTION
| Ask a doctor or pharmacist before use if you are presently taking a prescription drug. Antacids may interact with certain prescription drugs. |
OTC - STOP USE SECTION
- your heartburn continues or worsens
- you need to take this product for more than 14 days
OTC - KEEP OUT OF REACH OF CHILDREN SECTION
If pregnant or breast-feeding, ask a health professional before use.
Keep out of
reach of children. In case of overdose, get medical help or
contact a Poison Control Center right away. (1-800-222-1222)
INDICATIONS & USAGE SECTION
Directions
- adults and children 12 years and over:
- do not swallow tablet whole: chew completely
- to relieve symptoms, chew 1 tablet before swallowing
- do not use more than 2 chewable tablets in 24 hours
- children under 12 years: ask a doctor
HOW SUPPLIED SECTION
Other information
- each tablet contains: calcium 330 mg; magnesium 70 mg
- Phenylketonurics: Contains phenylalanine 2.2 mg per tablet
- read the directions and warnings before use
- read the bottle label. It contains important information.
- store at 20-25°C (68-77°F)
- protect from moisture
INACTIVE INGREDIENT SECTION
Inactive ingredients anhydrous lactose, aspartame, dextrates, ferric oxide, glyceryl monostearate, lactose monohydrate, magnesium stearate, microcrystalline cellulose, natural peppermint flavor, polyacrylate dispersion, polysorbate 80, povidone, pregelatinized starch, sodium starch glycolate, talc
INFORMATION FOR PATIENTS SECTION
| Questions? Call 1-888-285-9159 (English/Spanish) M – F, 8:30 – 5 EST, or visit |
Distributed by: Boehringer Ingelheim (BI) Consumer Health Care Products Division of BI Pharmaceuticals, Inc., Ridgefield, CT 06877. © 2016, BI Pharmaceuticals, Inc. All rights reserved.
PACKAGE LABEL.PRINCIPAL DISPLAY PANEL
PACKAGE LABEL.PRINCIPAL DISPLAY PANEL
PACKAGE LABEL.PRINCIPAL DISPLAY PANEL
FDA-Initiated Inactive NDC Indexing#
Products#
Every source-derived product name is available through these pages.
- DUO Fusion
- Famotidine, Calcium carbonate, Magnesium hydroxide
- Famotidine
- Calcium Carbonate
- CARBONATE ION
- Magnesium Hydroxide
- HYDROXIDE ION
- ANHYDROUS LACTOSE
- ASPARTAME
- DEXTRATES
- FERRIC OXIDE RED
- GLYCERYL MONOSTEARATE
- LACTOSE MONOHYDRATE
- MAGNESIUM STEARATE
- CELLULOSE, MICROCRYSTALLINE
- METHACRYLIC ACID - ETHYL ACRYLATE COPOLYMER (1:1) TYPE A
- POLYSORBATE 80
- POVIDONES
- STARCH, CORN
- SODIUM STARCH GLYCOLATE TYPE A POTATO
- TALC
NDC Codes#
| Product NDC | Package NDC |
|---|---|
| 0597-0320 | 0597-0320-35, 0597-0320-70, 0597-0320-69 |
Ingredients#
Every source-derived ingredient row is available through these pages.
Source Document#
Orange Book application contexts#
All distinct exact application/product contexts derived from this label’s complete NDC list are paginated below.
Orange Book products#
| Application-product | Trade name | Ingredient | Strength | Dosage form / route | TE codes | RLD / RS | Approval date |
|---|---|---|---|---|---|---|---|
| A077355-001 | FAMOTIDINE, CALCIUM CARBONATE, AND MAGNESIUM HYDROXIDE | CALCIUM CARBONATE; FAMOTIDINE; MAGNESIUM HYDROXIDE | 800MG;10MG;165MG | TABLET, CHEWABLE / ORAL | 2008-02-06 |
Observed Orange Book product history#
Observed FDA ZIP history: Each table is queried independently by exact application/product key from successfully parsed Orange Book snapshots. Capture times identify archived source observations; absence or a change between snapshots is not inferred. FDA publication files that were not recoverable as structured ZIP data are not represented as states.
| Captured | Edition | Application-product | Trade name | Strength | Dosage form / route | Product TE source text | RLD / RS | Approval date | Source SHA-256 |
|---|---|---|---|---|---|---|---|---|---|
| 2026-09-14 22:38:34 | 2026-08 | A077355-001 | FAMOTIDINE, CALCIUM CARBONATE, AND MAGNESIUM HYDROXIDE | 800MG;10MG;165MG | TABLET, CHEWABLE / ORAL | 2008-02-06 | 84e616aacf4f… | ||
| 2026-08-18 06:07:40 | 2026-07 | A077355-001 | FAMOTIDINE, CALCIUM CARBONATE, AND MAGNESIUM HYDROXIDE | 800MG;10MG;165MG | TABLET, CHEWABLE / ORAL | 2008-02-06 | caaa826d4ba7… | ||
| 2026-02-19 14:30 UTC | 2026-02 | A077355-001 | FAMOTIDINE, CALCIUM CARBONATE, AND MAGNESIUM HYDROXIDE | 800MG;10MG;165MG | TABLET, CHEWABLE / ORAL | 2008-02-06 | 011fe1cb6892… | ||
| 2025-12-14 10:44 UTC · 2 captures of this ZIP | 2025-12 | A077355-001 | FAMOTIDINE, CALCIUM CARBONATE, AND MAGNESIUM HYDROXIDE | 800MG;10MG;165MG | TABLET, CHEWABLE / ORAL | 2008-02-06 | 31067a03dcf5… | ||
| 2025-08-23 18:47 UTC | 2025-08 | A077355-001 | FAMOTIDINE, CALCIUM CARBONATE, AND MAGNESIUM HYDROXIDE | 800MG;10MG;165MG | TABLET, CHEWABLE / ORAL | 2008-02-06 | 6a471c1ec25d… | ||
| 2025-03-22 03:13 UTC · 3 captures of this ZIP | 2025-03 | A077355-001 | FAMOTIDINE, CALCIUM CARBONATE, AND MAGNESIUM HYDROXIDE | 800MG;10MG;165MG | TABLET, CHEWABLE / ORAL | 2008-02-06 | fd3edfee7708… | ||
| 2025-02-26 10:13 UTC · 3 captures of this ZIP | 2025-02 | A077355-001 | FAMOTIDINE, CALCIUM CARBONATE, AND MAGNESIUM HYDROXIDE | 800MG;10MG;165MG | TABLET, CHEWABLE / ORAL | 2008-02-06 | b8a1b40f171c… | ||
| 2025-01-19 17:59 UTC · 7 captures of this ZIP | 2025-01 | A077355-001 | FAMOTIDINE, CALCIUM CARBONATE, AND MAGNESIUM HYDROXIDE | 800MG;10MG;165MG | TABLET, CHEWABLE / ORAL | 2008-02-06 | 03ed91905a0d… | ||
| 2024-12-13 21:23 UTC · 2 captures of this ZIP | 2024-12 | A077355-001 | FAMOTIDINE, CALCIUM CARBONATE, AND MAGNESIUM HYDROXIDE | 800MG;10MG;165MG | TABLET, CHEWABLE / ORAL | 2008-02-06 | 2680178bc6a6… | ||
| 2024-09-14 05:58 UTC · 2 captures of this ZIP | 2024-09 | A077355-001 | FAMOTIDINE, CALCIUM CARBONATE, AND MAGNESIUM HYDROXIDE | 800MG;10MG;165MG | TABLET, CHEWABLE / ORAL | 2008-02-06 | 5bbf6a4d5a75… | ||
| 2024-11-08 22:44 UTC · 3 captures of this ZIP | 2024-11 | A077355-001 | FAMOTIDINE, CALCIUM CARBONATE, AND MAGNESIUM HYDROXIDE | 800MG;10MG;165MG | TABLET, CHEWABLE / ORAL | 2008-02-06 | d8e5a09893c0… | ||
| 2024-10-29 15:01 UTC | 2024-10 | A077355-001 | FAMOTIDINE, CALCIUM CARBONATE, AND MAGNESIUM HYDROXIDE | 800MG;10MG;165MG | TABLET, CHEWABLE / ORAL | 2008-02-06 | d06236e962d9… | ||
| 2024-08-13 05:28 UTC · 3 captures of this ZIP | 2024-08 | A077355-001 | FAMOTIDINE, CALCIUM CARBONATE, AND MAGNESIUM HYDROXIDE | 800MG;10MG;165MG | TABLET, CHEWABLE / ORAL | 2008-02-06 | 79d66fd596c7… | ||
| 2024-07-13 05:37 UTC · 2 captures of this ZIP | 2024-07 | A077355-001 | FAMOTIDINE, CALCIUM CARBONATE, AND MAGNESIUM HYDROXIDE | 800MG;10MG;165MG | TABLET, CHEWABLE / ORAL | 2008-02-06 | 301d65b070ca… | ||
| 2024-06-18 03:08 UTC · 5 captures of this ZIP | 2024-06 | A077355-001 | FAMOTIDINE, CALCIUM CARBONATE, AND MAGNESIUM HYDROXIDE | 800MG;10MG;165MG | TABLET, CHEWABLE / ORAL | 2008-02-06 | 1e350fbaab3a… | ||
| 2024-05-31 18:47 UTC | 2024-05 | A077355-001 | FAMOTIDINE, CALCIUM CARBONATE, AND MAGNESIUM HYDROXIDE | 800MG;10MG;165MG | TABLET, CHEWABLE / ORAL | 2008-02-06 | 8072bd15b7f6… | ||
| 2022-06-29 02:47 UTC · 2 captures of this ZIP | 2022-06 | A077355-001 | FAMOTIDINE, CALCIUM CARBONATE, AND MAGNESIUM HYDROXIDE | 800MG;10MG;165MG | TABLET, CHEWABLE / ORAL | 2008-02-06 | 5c6f7cd8ea54… | ||
| 2022-04-08 23:34 UTC | 2022-04 | A077355-001 | FAMOTIDINE, CALCIUM CARBONATE, AND MAGNESIUM HYDROXIDE | 800MG;10MG;165MG | TABLET, CHEWABLE / ORAL | 2008-02-06 | 5d02ea3f76ae… | ||
| 2022-04-04 05:41 UTC | 2022-04 | A077355-001 | FAMOTIDINE, CALCIUM CARBONATE, AND MAGNESIUM HYDROXIDE | 800MG;10MG;165MG | TABLET, CHEWABLE / ORAL | 2008-02-06 | 4b0b4de00fa7… | ||
| 2019-12-13 00:20 UTC | 2019-12 | A077355-001 | FAMOTIDINE, CALCIUM CARBONATE, AND MAGNESIUM HYDROXIDE | 800MG;10MG;165MG | TABLET, CHEWABLE / ORAL | 2008-02-06 | 74a2ff9319b5… | ||
| 2022-03-09 01:35 UTC | 2022-03 | A077355-001 | FAMOTIDINE, CALCIUM CARBONATE, AND MAGNESIUM HYDROXIDE | 800MG;10MG;165MG | TABLET, CHEWABLE / ORAL | 2008-02-06 | bb7c543d1eb4… | ||
| 2021-12-28 21:50 UTC | 2021-12 | A077355-001 | FAMOTIDINE, CALCIUM CARBONATE, AND MAGNESIUM HYDROXIDE | 800MG;10MG;165MG | TABLET, CHEWABLE / ORAL | 2008-02-06 | 782e0a99824c… | ||
| 2021-05-05 16:15 UTC · 3 captures of this ZIP | 2021-05 | A077355-001 | FAMOTIDINE, CALCIUM CARBONATE, AND MAGNESIUM HYDROXIDE | 800MG;10MG;165MG | TABLET, CHEWABLE / ORAL | 2008-02-06 | 87673890dc5c… | ||
| 2021-03-12 10:30 UTC | 2021-03 | A077355-001 | FAMOTIDINE, CALCIUM CARBONATE, AND MAGNESIUM HYDROXIDE | 800MG;10MG;165MG | TABLET, CHEWABLE / ORAL | 2008-02-06 | 5aa47cf7b7d7… | ||
| 2020-12-22 03:56 UTC | 2020-12 | A077355-001 | FAMOTIDINE, CALCIUM CARBONATE, AND MAGNESIUM HYDROXIDE | 800MG;10MG;165MG | TABLET, CHEWABLE / ORAL | 2008-02-06 | 8869cabd3fbd… | ||
| 2020-11-12 02:37 UTC | 2020-11 | A077355-001 | FAMOTIDINE, CALCIUM CARBONATE, AND MAGNESIUM HYDROXIDE | 800MG;10MG;165MG | TABLET, CHEWABLE / ORAL | 2008-02-06 | c0c555d07b60… | ||
| 2019-12-14 00:12 UTC | 2019-12 | A077355-001 | FAMOTIDINE, CALCIUM CARBONATE, AND MAGNESIUM HYDROXIDE | 800MG;10MG;165MG | TABLET, CHEWABLE / ORAL | 2008-02-06 | 3f01610625f2… | ||
| 2019-09-15 20:21 UTC | 2019-09 | A077355-001 | FAMOTIDINE, CALCIUM CARBONATE, AND MAGNESIUM HYDROXIDE | 800MG;10MG;165MG | TABLET, CHEWABLE / ORAL | 2008-02-06 | b00525d2431f… | ||
| 2019-07-19 19:46 UTC | 2019-07 | A077355-001 | FAMOTIDINE, CALCIUM CARBONATE, AND MAGNESIUM HYDROXIDE | 800MG;10MG;165MG | TABLET, CHEWABLE / ORAL | 2008-02-06 | ea99ee380514… | ||
| 2024-03-16 18:09 UTC · 4 captures of this ZIP | 2024-03 | A077355-001 | FAMOTIDINE, CALCIUM CARBONATE, AND MAGNESIUM HYDROXIDE | 800MG;10MG;165MG | TABLET, CHEWABLE / ORAL | 2008-02-06 | 6a51e52b5d6a… | ||
| 2024-02-18 07:12 UTC | 2024-02 | A077355-001 | FAMOTIDINE, CALCIUM CARBONATE, AND MAGNESIUM HYDROXIDE | 800MG;10MG;165MG | TABLET, CHEWABLE / ORAL | 2008-02-06 | 1c564ffb4f44… | ||
| 2023-12-20 04:57 UTC | 2023-12 | A077355-001 | FAMOTIDINE, CALCIUM CARBONATE, AND MAGNESIUM HYDROXIDE | 800MG;10MG;165MG | TABLET, CHEWABLE / ORAL | 2008-02-06 | ea1830bbd6c7… | ||
| 2023-11-28 05:40 UTC · 2 captures of this ZIP | 2023-11 | A077355-001 | FAMOTIDINE, CALCIUM CARBONATE, AND MAGNESIUM HYDROXIDE | 800MG;10MG;165MG | TABLET, CHEWABLE / ORAL | 2008-02-06 | a72a2bbeb626… | ||
| 2023-10-25 00:34 UTC · 2 captures of this ZIP | 2023-10 | A077355-001 | FAMOTIDINE, CALCIUM CARBONATE, AND MAGNESIUM HYDROXIDE | 800MG;10MG;165MG | TABLET, CHEWABLE / ORAL | 2008-02-06 | 9b2671bbb829… | ||
| 2023-07-15 15:27 UTC · 2 captures of this ZIP | 2023-07 | A077355-001 | FAMOTIDINE, CALCIUM CARBONATE, AND MAGNESIUM HYDROXIDE | 800MG;10MG;165MG | TABLET, CHEWABLE / ORAL | 2008-02-06 | a67488948f0b… | ||
| 2023-06-13 01:57 UTC · 3 captures of this ZIP | 2023-06 | A077355-001 | FAMOTIDINE, CALCIUM CARBONATE, AND MAGNESIUM HYDROXIDE | 800MG;10MG;165MG | TABLET, CHEWABLE / ORAL | 2008-02-06 | 3f0d92c62455… | ||
| 2023-05-13 08:27 UTC | 2023-05 | A077355-001 | FAMOTIDINE, CALCIUM CARBONATE, AND MAGNESIUM HYDROXIDE | 800MG;10MG;165MG | TABLET, CHEWABLE / ORAL | 2008-02-06 | 053a50430f4f… | ||
| 2023-01-26 05:58 UTC | 2023-01 | A077355-001 | FAMOTIDINE, CALCIUM CARBONATE, AND MAGNESIUM HYDROXIDE | 800MG;10MG;165MG | TABLET, CHEWABLE / ORAL | 2008-02-06 | 3bdfa0b2c4d7… | ||
| 2022-11-12 20:34 UTC · 5 captures of this ZIP | 2022-11 | A077355-001 | FAMOTIDINE, CALCIUM CARBONATE, AND MAGNESIUM HYDROXIDE | 800MG;10MG;165MG | TABLET, CHEWABLE / ORAL | 2008-02-06 | 3a93d1ddd44b… | ||
| 2022-10-28 04:53 UTC | 2022-10 | A077355-001 | FAMOTIDINE, CALCIUM CARBONATE, AND MAGNESIUM HYDROXIDE | 800MG;10MG;165MG | TABLET, CHEWABLE / ORAL | 2008-02-06 | f41ea6bd6efb… |
openFDA label cross-check#
OpenFDA label data provides additional search and identifier links. DailyMed’s Structured Product Label is the canonical label on FDA.report. Matching records are deduplicated before they are shown below.
| Brand | Generic | Manufacturer | SPL set ID | Effective date | Available safety fields | Join |
|---|---|---|---|---|---|---|
| 423e8aff-8b98-48d2-86b2-e1eca5995e09 | 30e54e0c-2e89-ee53-0f75-8851bcbe501a | 2021-11-01 | Warnings | 30e54e0c-2e89-ee53-0f75-8851bcbe501a |
Reported adverse events (FAERS/openFDA)#
Adverse event summaries are temporarily unavailable. Other product information remains available.


