Regular Strength Antacid Original Flavor Liquid

Manufacturer
Guardian Drug Company
Effective date
2026-08-27
Label type
Human OTC Drug Label
Version
2
Source
daily-update
Hydrated at
2026-09-01 13:03:05

Label at a glance#

ProductAntacid
Active ingredientALUMINUM HYDROXIDE, MAGNESIUM HYDROXIDE, DIMETHICONE
Label structure12 sections

Dosage and administration

shake well before use mL = milliliter adults and children 12 years and older: take 10 mL to 20 mL four times a day, or as directed by a doctor children under 12 years: consult a doctor

Storage and handling

each 10 mL contains: magnesium 170 mg, sodium 5 mg store at controlled room temperature 20ºC-25ºC (68º-77ºF) do not freeze

Label contents#

Full prescribing information#

ACTIVE INGREDIENTS (in each 10 mL )

OTC - ACTIVE INGREDIENT SECTION

Aluminum hydroxide (equiv. to dried gel, USP) 400 mg
Magnesium hydroxide 400 mg
Simethicone 40 mg

PURPOSE

OTC - PURPOSE SECTION

Antacid
Antacid
Antigas

USE(S)

INDICATIONS & USAGE SECTION

relieves:


  • acid indigestion
  • heartburn
  • sour stomach
  • upset stomach and gas associated with these symptoms 

WARNINGS

WARNINGS SECTION

Do not take more than 80 mL in a 24-hour period, or use the maximum dosage of this product for more than 2 weeks, except under the advice and supervision of a doctor.

ASK A DOCTOR BEFORE USE IF YOU HAVE

OTC - ASK DOCTOR SECTION

  • kidney disease
  • a magnesium-restricted diet

ASK A DOCTOR OR PHARMACIST BEFORE USE IF YOU ARE 

OTC - ASK DOCTOR/PHARMACIST SECTION

  • presently taking a prescription drug. Antacids may interact with certain prescription drugs.

STOP USE AND ASK DOCTOR

OTC - STOP USE SECTION

if symptoms last more than two weeks

KEEP OUT OF REACH OF CHILDREN

OTC - KEEP OUT OF REACH OF CHILDREN SECTION

.

DIRECTIONS

DOSAGE & ADMINISTRATION SECTION

  • shake well before use
  • mL = milliliter
  • adults and children 12 years and older: take 10 mL to 20 mL four times a day, or as directed by a doctor
  • children under 12 years: consult a doctor

OTHER INFORMATION

STORAGE AND HANDLING SECTION

  • each 10 mL contains: magnesium 170 mg, sodium 5 mg
  • store at controlled room temperature 20ºC-25ºC (68º-77ºF)
  • do not freeze

INACTIVE INGREDIENTS

INACTIVE INGREDIENT SECTION

ethyl alcohol, flavor, glycerin, hydroxyethyl cellulose, methylparaben, propylene glycol, propylparaben, purified water, saccharin sodium, simethicone emulsion, sorbitol

PRINCIPAL DISPLAY PANEL

PACKAGE LABEL.PRINCIPAL DISPLAY PANEL

GUARDIAN

NDC 53041-509-05

Regular strength

Antacid liquid

original flavor


aluminum hydroxide, 400 mg
magnesium hydroxide, 400 mg
simethicone, 40 mg

Antacid/Anti-gas

Relief of:

  • Heartburn
  • Sour stomach
  • Acid indigestion
  • Symptoms of Gas

12 FL OZ (355 mL)
Alcohol content 0.2% v/v


509-12-gdc.jpg
509-12-gdc.jpg




Products#

Every source-derived product name is available through these pages.

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NDC Codes#

Product NDC, Package NDC table
Product NDCPackage NDC
53041-50953041-509-05

Ingredients#

Every source-derived ingredient row is available through these pages.

DailyMed ingredient rows page 1 of 1 · 12 matching rows.

Source Document#

Source XML

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.

Matched openFDA labels page 1 of 1 · 1 matching rows.

Brand, Generic, Manufacturer table
BrandGenericManufacturerSPL set IDEffective dateAvailable safety fieldsJoin
AntacidALUMINUM HYDROXIDE, MAGNESIUM HYDROXIDE, SIMETHICONEGuardian Drug Company48ec50ab-f24b-367b-e063-6294a90ad7362026-08-27WarningsExact identifier
ndc (package): 53041-509-05
ndc (product): 53041-509
ndc11 (package): 53041050905
spl id: d577828d-8a47-4a16-b1a5-3628679b3fe5
spl set id: 48ec50ab-f24b-367b-e063-6294a90ad736

Reported adverse events (FAERS/openFDA)#

Adverse event summaries are temporarily unavailable. Other product information remains available.