QCH Regular Strength Antacid 509 aluminum hydroxide, magnesium hydroxide, simethicone 400 mg/10mL; 400 mg/10mL; 40 mg/10mL Liquid, 355 mL
🆔 Identity & classification
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🏷️ RxNorm drug class
This medicine belongs to the Aluminium compounds class.
Where does this data come from?
🏭 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 ↗QCH Regular Strength Antacid is an over-the-counter liquid taken by mouth containing three active ingredients. Aluminum hydroxide and magnesium hydroxide are antacids that are commonly used to neutralize stomach acid and provide relief from heartburn and indigestion. Simethicone (also called dimethicone) is an anti-gas ingredient typically used to reduce bloating and gas discomfort. This product is marketed as an OTC monograph drug, meaning it follows established FDA guidelines for this category of antacid products.
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.
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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 3K9958V90M
A liquid solvent derived from fermentation or chemical synthesis. In medicines, alcohol dissolves active ingredients, helps preserve the product, and improves how the body absorbs certain drugs.
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UNII PDC6A3C0OX
Glycerin is a clear, thick liquid derived from plant oils or fats. It acts as a humectant to retain moisture, a sweetener, and a solvent in medications.
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UNII S38J6RZN16
Hydroxyethyl cellulose is a plant-derived thickening agent made from cellulose. In medicines, it acts as a binder to hold ingredients together, a thickener to adjust product texture, and a film-former to create smooth coatings on tablets.
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UNII A2I8C7HI9T
Methylparaben is a preservative derived from benzoic acid that prevents growth of bacteria, fungi, and mold in medicines. It extends the product's shelf life and maintains safety during storage.
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UNII 6DC9Q167V3
Propylene glycol is a clear liquid derived from petroleum or vegetable sources. It acts as a solvent, humectant, and preservative in medicines, helping dissolve active ingredients and maintain product stability.
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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 506T60A25R
Sorbitol is a natural sugar alcohol derived from glucose. It serves as a sweetener, humectant, and bulking agent in medications to improve taste and help maintain moisture in the product.
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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 | $0.011 | $3.73 / 355 ml |
| Medicaid paysCMS SDUD · 12 mo | $0.0238 | $8.45 / 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 |
|---|---|---|---|
| 83324-0121-12 You're viewing this | 355 mL in 1 BOTTLE (83324-121-12) | 2024-08-27 | Active |
📄 FDA label — Drug Facts FDA SPL
🎯 Indications and Usage ▾
USE(S) relieves: acid indigestion heartburn sour stomach upset stomach and gas associated with these symptoms
⏱️ Dosage and Administration ▾
DIRECTIONS 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
⚠️ Warnings ▾
WARNINGS 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.
📦 Storage and Handling ▾
OTHER INFORMATION each 10 mL contains: magnesium 170 mg, sodium 5 mg store at controlled room temperature 20ºC-25ºC (68º-77ºF) do not freeze
🧪 Active Ingredient ▾
ACTIVE INGREDIENTS (in each 10 mL ) Aluminum hydroxide (equiv. to dried gel, USP) 400 mg Magnesium hydroxide 400 mg Simethicone 40 mg
🧪 Inactive Ingredients ▾
INACTIVE INGREDIENTS ethyl alcohol, flavor, glycerin, hydroxyethyl cellulose, methylparaben, propylene glycol, propylparaben, purified water, saccharin sodium, simethicone emulsion, sorbitol
🎯 Purpose ▾
PURPOSE Antacid Antacid Antigas