Milk of Magnesia (magnesium hydroxide) NDC 57237-314

NDC codes

FDA NDC Directory

Product NDC (as listed)57237-314Labeler and product segments. Claims need a package NDC.

Product NDC at billing width57237-0314Add the package segment from the table below.

Package NDCs as listed with the FDA, and the 11-digit 5-4-2 form used on claims. The highlighted digit is the added leading zero.
Package NDC	11-digit (billing)	Package	Copy
57237-314-31	57237031431	100 CUP, UNIT-DOSE in 1 BOX, UNIT-DOSE (57237-314-31) / 30 mL in 1 CUP, UNIT-DOSE (57237-314-03)Marketed from Jul 5, 2023

How the 11-digit form is made: The product segment has 3 digits, so one leading zero is added to it (5-3-2 → 5-4-2). Formatting the NDC does not by itself make it billable — the product, package and quantity must match what was dispensed or administered, and payer rules apply. Conversion rules

Product information

Brand name (proprietary): Milk of Magnesia
Generic name (nonproprietary): magnesium hydroxide
Active ingredients: Magnesium hydroxide — 2400 mg/30mL
Dosage form: Suspension
Route: Oral
Labeler: Rising Pharma Holdings, Inc.
Product type: Over-the-counter drug
Marketing category: OTC monograph drugApplication M007.58
Marketing start: Jul 5, 2023
Listing expires: Dec 31, 2026
Other FDA classes: Increased Large Intestinal Motility (Physiologic effect)Inhibition Large Intestine Fluid/Electrolyte Absorption (Physiologic effect)Inhibition Small Intestine Fluid/Electrolyte Absorption (Physiologic effect)Magnesium Ion Exchange Activity (Mechanism)Osmotic Activity (Mechanism)Stimulation Large Intestine Fluid/Electrolyte Secretion (Physiologic effect)
Identifiers: Product ID 57237-314_bd43f44b-9295-4a99-9c18-18bb52b67887SPL ID bd43f44b-9295-4a99-9c18-18bb52b67887SPL set ID dfede6bd-df37-4f0f-9944-49dc13c967deRxCUI 253017UNII NBZ3QY004S
Pharmacologic class: Calculi Dissolution Agent; Osmotic Laxative

Billing references

What Med-Code can say about coding this product, and where each statement comes from. Nothing here is inferred from the name alone.

HCPCS codeNo match

No HCPCS code in Med-Code's directory. Oral products like this are usually dispensed by a pharmacy and billed by NDC.

NDC on a medical claim

N457237031431 followed by a unit qualifier and the quantity

Package 57237-0314-31. Unit qualifiers: F2 (international unit), GR (gram), ME (milligram), ML (milliliter), UN (unit (each)). The qualifier and quantity depend on what was given. About the N4 qualifier

Product label

Current FDA label (SPL), effective Jul 1, 2025.

Indications (excerpt from the label)

Uses • relieves occasional constipation (irregularity) • usually produces bowel movement in ½ hour to 6 hours

Excerpt only. Read the full label for complete information.

Full label on DailyMed (opens in a new tab)