MAXIMUM STRENGTH ANTACID aluminum hydroxide, magnesium hydroxide, simethicone 400 mg/5mL; 400 mg/5mL; 40 mg/5mL Suspension, 355 mL
🆔 Identity & classification
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🏷️ RxNorm drug class
This medicine belongs to the Aluminium compounds class.
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🏭 Manufacturer & labeler
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🩺 Clinical
Aluminum Hydroxide, Magnesium Hydroxide are antacids used together to relieve heartburn, acid indigestion, and upset stomach. They may be used to treat these symptoms in patients with peptic ulcer, gastritis, esophagitis, hiatal hernia, or too much acid in the stomach (gastric hyperacidity). They combine with stomach acid and neutralize it. Aluminum Hydroxide, Magnesium Hydroxide are available without a prescription. This medication is sometimes prescribed for other uses; ask your doctor or pharmacist for more information.
Read the full MedlinePlus article ↗This is an over-the-counter oral suspension antacid classified as a monograph drug. It contains aluminum hydroxide and magnesium hydroxide, which are bases that work together to neutralize stomach acid, and simethicone (also called dimethicone), which is used to reduce gas bubbles in the digestive tract. The combination is typically used to relieve symptoms such as heartburn, indigestion, and bloating.
Patient education
Supplement & herbal interactions
Some supplements/herbs that may interact with Aluminum Hydroxide, Magnesium Hydroxide, Simethicone (OTC drug) — tap one for details:
Aluminum Hydroxide, Magnesium Hydroxide, Simethicone (OTC drug) may be associated with lower levels of 5 nutrients — worth a chat with your pharmacist, not a cause for alarm.
Where does this data come from?
Ask a licensed pharmacist directly — free, answered by our team.
💊 What it looks like
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🧪 Inactive Ingredients / Excipients
Inactive ingredients, also called excipients, are components of the drug product other than the active ingredient. They may include fillers, dyes, coatings, preservatives, flavors, or other formulation ingredients.
💡 Tap an ingredient (hover on desktop) to see what it is and why it’s used.
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UNII LKG8494WBH
Benzyl alcohol is a clear liquid used as a preservative and solvent in medicines. It helps prevent bacterial and fungal growth and dissolves other ingredients to create uniform liquid formulations.
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UNII 3QPI1U3FV8
A preservative derived from benzoic acid that prevents bacterial and fungal growth in medicines. It helps extend shelf life and maintain product safety during storage and use.
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UNII K679OBS311
Carboxymethylcellulose sodium is a plant-derived thickening agent made from cellulose. In medicines, it acts as a binder to hold ingredients together, a disintegrant to help the tablet break apart, or a thickener in liquids.
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UNII OP1R32D61U
Microcrystalline cellulose is a purified form of cellulose, a natural fiber from plant sources. It acts as a binder and filler in tablets and capsules, helping hold ingredients together and give the medicine its shape and size.
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UNII 3NXW29V3WO
Hypromellose is a plant-based thickener made from cellulose. It's used in medicines as a binder to hold ingredients together, a coating for tablets, and a thickener for liquids.
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UNII Z8IX2SC1OH
Propylparaben is a chemical preservative used to prevent bacterial and fungal growth in medicines and personal care products. It helps extend shelf life and maintain product safety during storage.
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UNII SB8ZUX40TY
Saccharin sodium is an artificial sweetener made from saccharin salt. It's added to medicines to improve taste, especially in liquid formulations for children or bitter drugs.
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UNII 8KW3E207O2
A liquid sweetener made from sorbitol, a sugar alcohol derived from glucose. It sweetens the medicine and also acts as a humectant to help retain moisture and improve texture in liquid formulations.
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UNII 059QF0KO0R
Water is a liquid solvent that dissolves and mixes ingredients together in liquid medicines, syrups, and injections. It helps distribute the active drug evenly throughout the product.
9 inactive ingredients listed in the exact product block matched to this NDC.
Label-section wording can be broader than the structured product block and may mention additional formulation ingredients.
Where does this data come from?
ingredient classCode="IACT" elements from the exact product block matched by this NDC. Label-section narrative from DailyMed / the openFDA label index is shown separately when available.Inactive ingredient FAQ
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💲 Pricing
A drug doesn't have one price. Each row is a different public payment system, and none is what you'd pay at the counter — that depends on your insurance. The ⓘ on each row explains what it measures.
| Price system | Per mL | Per package |
|---|---|---|
| Retail pharmacies payNADAC · weekly | $0.012 | $4.30 / 355 ml |
| Medicaid paysCMS SDUD · 12 mo | $0.0338 | $12.00 / 355 ml |
| Medicare drug plans payPart D · quarterly | No Part D plan price is available for this NDC in our data. | |
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🔁 Therapeutic equivalents
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⏳ Availability & generic status
We did not find an FDA-approved generic match for this exact strength, form and route.
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🗺️ Medicaid utilization & spend
📦 Packaging — all sizes for this product
| Package NDC | Description | Marketing start | Status |
|---|---|---|---|
| 70000-0422-01 You're viewing this | 355 mL in 1 BOTTLE (70000-0422-1) | 2019-01-01 | Active |
📄 FDA label — Drug Facts FDA SPL
🎯 Indications and Usage ▾
Uses relieves heartburn sour stomach acid indigestion the symptoms referred to as gas
⏱️ Dosage and Administration ▾
Directions shake well before use adults and children 12 years of age and older: take 2 to 4 teaspoonfuls between meals, at bedtime or as directed by a doctor do not exceed 8 teaspoonfuls in a 24 hour period or use the maximum dosage for more than 2 weeks children under 12 years of age: ask a doctor
⚠️ Warnings ▾
Warnings 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.
📦 Storage and Handling ▾
Other information each 5 mL teaspoonful contains: magnesium 165 mg, sodium 5 mg store at room temperature protect from freezing keep tightly closed
🧪 Active Ingredient ▾
Active ingredients (in each 5 mL teaspoonful) Aluminum hydroxide (equivalent to dried gel, USP) 400 mg Magnesium hydroxide 400 mg Simethicone 40 mg
🧪 Inactive Ingredients ▾
Inactive ingredients benzyl alcohol, butylparaben, carboxymethylcellulose sodium, flavor, hypromellose, microcrystalline cellulose, propylparaben, purified water, saccharin sodium, sorbitol solution Questions or Comments? 1-800-540-3765
🎯 Purpose ▾
Purposes Antacid Antigas