Maximum Strength Antacid Antigas
Aluminum hydroxide, magnesium hydroxide, simethicone · Suspension · Oral
Active ingredient
Active ingredients (in each 5 mL teaspoonful) Aluminum hydroxide 400 mg (equivalent to dried gel, USP) Magnesium hydroxide 400 mg Simethicone 40mg
Purpose
Purposes Antacid Antigas
Uses
Uses relieves heartburn sour stomach acid indigestion the symptoms referred to as gas
Warnings
Warnings Do not take more than 12 teaspoonfuls in 24 hours or use the maximum dosage for more than 2 weeks. Ask a doctor before use if you have kidney disease a magnesium-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.
Keep out of reach of children
Keep out of reach of children.
Directions
Directions shake well before use adults and children 12 years and older: take 2 to 4 teaspoonfuls between meals, at bedtime, or as directed by a doctor children under 12 years of age: ask a doctor
Other information
Other information each 5 mL teaspoonful contains: magnesium 165 mg, sodium 5 mg store at room temperature and avoid freezing keep tightly closed
Inactive ingredients
Inactive ingredients benzyl alcohol, butylparaben, carboxymethylcellulose sodium, flavor (contains alcohol), hypromellose, microcrystalline cellulose, propylparaben, purified water, saccharin sodium, sorbitol solution
Questions?
Questions or comments? 1-800-540-3765
Label text from the FDA structured product label by WALGREEN COMPANY (revised Nov 19, 2025). Long sections are shortened; the complete label is on DailyMed.
Active ingredients
- Aluminum Hydroxide in 2 products
- Magnesium Hydroxide in 2 products
- Dimethicone in 2 products
Maximum Strength Antacid Antigas NDC products (2)
| NDC | Strength & form | Labeler | Type |
|---|---|---|---|
| 70677-1064 | Aluminum Hydroxide 400 mg/5mL; Magnesium Hydroxide 400 mg/5mL; Dimethicone 40 mg/5mL Suspension | STRATEGIC SOURCING SERVICES LLC | OTC MONOGRAPH DRUG |
| 0363-1691 | Aluminum Hydroxide 400 mg/5mL; Magnesium Hydroxide 400 mg/5mL; Dimethicone 40 mg/5mL Suspension | WALGREEN COMPANY | OTC MONOGRAPH DRUG |
Frequently asked questions
What is Maximum Strength Antacid Antigas used for?
Uses relieves heartburn sour stomach acid indigestion the symptoms referred to as gas
Who makes Maximum Strength Antacid Antigas?
Maximum Strength Antacid Antigas is listed by 2 labelers in the FDA NDC directory, including STRATEGIC SOURCING SERVICES LLC, WALGREEN COMPANY.