Nutralox
Calcium Carbonate · Tablet, Chewable · Oral
Active ingredient
Active Ingredient (in each tablet): Calcium Carbonate 420 mg
Purpose
Purpose: Antacid
Uses
Uses: Temporarily relieves heartburn sour stomach acid indigestion upset stomach
Warnings
Warnings:
Ask a doctor or pharmacist
Ask a doctor or pharmacist before use if you are presently taking a prescription drug. Antacids may interfere with certain prescription drugs.
Stop use and ask a doctor
Stop use and ask a doctor if symptoms last for more than 2 weeks
Pregnancy or breast-feeding
If pregnant or breast-feeding , ask a health professional before use
Keep out of reach of children
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
Directions
Directions: Do not take more than directed Adults and children 12 years of age and over: thoroughly chew 2 tablets every 3 to 4 hours as symptoms occur do not take more than 16 tablets in 24 hours unless directed by a doctor do not use the maximum dose for more than 2 weeks Children under 12 years of age: ask a doctor
Inactive ingredients
Inactive ingredients aspartame, croscarmellose sodium, magnesium stearate, maltodextrin, mint flavor, sorbitol May contain mineral oil
Label text from the FDA structured product label by HART Health (revised Dec 31, 2025). Long sections are shortened; the complete label is on DailyMed.
Active ingredients
- Calcium Carbonate in 2 products
Nutralox NDC products (2)
| NDC | Strength & form | Labeler | Type |
|---|---|---|---|
| 50090-2440 | Calcium Carbonate 420 mg/1 Tablet, Chewable | A-S Medication Solutions | OTC MONOGRAPH DRUG |
| 50332-0151 | Calcium Carbonate 420 mg/1 Tablet, Chewable | HART Health | OTC MONOGRAPH DRUG |
Frequently asked questions
What is Nutralox used for?
Uses: Temporarily relieves heartburn sour stomach acid indigestion upset stomach
Who makes Nutralox?
Nutralox is listed by 2 labelers in the FDA NDC directory, including A-S Medication Solutions, HART Health.