Aluminum Hydroxide and Magnesium Hydroxide
Aluminum hydroxide and magnesium hydroxide is a combination antacid used to relieve acid indigestion, heartburn, sour stomach, and upset stomach.
🧬 Where this information comes from Click to expand
The clinical label records used on this page are FDA-filed Structured Product Labeling (SPL) retrieved through openFDA. We identified 1 clinical label set within the page’s selected clinical scope after exact ingredient or ingredient-combination matching and applicable route/form matching. Forms, routes, brands, labelers, strengths, and NDC product-record counts are built separately from matching FDA National Drug Code Directory records. The linked DailyMed document is a representative official source for verification, not the page’s only clinical source. View the linked label on DailyMed →
📖 Aluminum Hydroxide and Magnesium Hydroxide: Patient Information Guide
A plain-language walkthrough of Aluminum Hydroxide and Magnesium Hydroxide — what it treats, how it works, how it’s taken, side effects, warnings and interactions. Tap any section to expand it.
🎯What it's used for▾
Aluminum hydroxide and magnesium hydroxide is a combination antacid indicated for short-term relief of stomach symptoms caused by excess acid.
- Acid indigestion
- Heartburn
- Sour stomach
- Upset stomach due to acid indigestion, heartburn, or sour stomach
💊How it's taken▾
Mag-AL Liquid oral suspension is taken by mouth. Always shake the bottle well before measuring your dose. Adults and children 12 and older typically take 2 to 4 teaspoonfuls four times a day, or as directed by a physician.
- Do not exceed 16 teaspoonfuls in a 24-hour period.
- Do not use the maximum dose for more than 2 weeks without a doctor's guidance.
- Children under 12: consult a doctor before use.
⚠️Warnings & precautions▾
The most important limit with this antacid is time and dose. Do not take more than 16 teaspoonfuls per day, and do not use the maximum amount for more than 2 weeks unless a doctor supervises you. Prolonged use without medical oversight can hide a more serious underlying problem.
- Stop use and see a doctor if symptoms continue beyond 2 weeks.
- People with kidney disease should ask a doctor before use — the kidneys help clear magnesium, and too much can accumulate.
- Anyone on a magnesium-restricted diet should also check with a doctor first.
- Keep out of reach of children.
🔀What it interacts with▾
Antacids can change how your body absorbs certain prescription drugs, so it's important to flag this product to your pharmacist or doctor if you take any prescription medications.
- Prescription drugs in general — antacids may reduce or alter their absorption or effectiveness; always ask a doctor or pharmacist before combining.
This is not a complete list of interactions. Always talk with your doctor or pharmacist before starting, stopping, or changing any medication.
📋Before taking it▾
- Kidney disease — magnesium can build up if your kidneys aren't working well; ask a doctor first.
- Magnesium-restricted diet — this product contains magnesium hydroxide; check with your doctor before use.
- Taking any prescription medication — antacids can interact with many drugs; ask your pharmacist.
- Children under 12 — do not use without first consulting a doctor.
📄 Written from Aluminum Hydroxide and Magnesium Hydroxide’s FDA-approved label information, summarized in plain language with AI, and reviewed by our pharmacy team before publication. Every point is grounded in that labeling — nothing is invented. How we use AI →
🩺 Pharmacist Counseling Corner
Quick, plain-English answers to the questions patients ask most about Aluminum Hydroxide and Magnesium Hydroxide — the kind of thing our pharmacy team would talk through with you at the counter.
What exactly does this antacid do — what symptoms will it help with? ▾
How do I take Mag-AL Liquid, and does it matter when I take it? ▾
Can I just keep taking this every day if it keeps helping? ▾
I take a prescription medication. Is it safe to use this at the same time? ▾
I have kidney disease. Is this safe for me? ▾
When should I stop using this and call a doctor? ▾
Is Aluminum Hydroxide and Magnesium Hydroxide available over the counter? ▾
When was Aluminum Hydroxide and Magnesium Hydroxide first available? ▾
Who makes Aluminum Hydroxide and Magnesium Hydroxide? ▾
💬 Answers drafted from Aluminum Hydroxide and Magnesium Hydroxide’s FDA-approved label information, summarized in plain language with AI, and reviewed by our pharmacy team before publication. Grounded in that labeling — nothing is made up. How we use AI →
🧰 Keep exploring
💊 How Aluminum Hydroxide and Magnesium Hydroxide comes
Aluminum Hydroxide and Magnesium Hydroxide is available in 1 form. Different forms and brands can have different approved uses, doses, schedules, and directions. Follow the instructions for your exact product, and do not switch forms without guidance from your prescriber or pharmacist.
Oral suspension
How this form is used
- Mag-AL Liquid is used for relief of acid indigestion.
- Mag-AL Liquid is used for relief of heartburn.
- Mag-AL Liquid is used for relief of sour stomach and upset stomach related to these symptoms.
- Mag-AL Liquid: Shake the bottle well before every use.
- Mag-AL Liquid: Adults and children 12 and older take 2 to 4 teaspoonfuls four times a day, or as a doctor directs.
- Mag-AL Liquid: Do not take more than 16 teaspoonfuls in any 24-hour period.
- Mag-AL Liquid: Do not use the maximum dosage for more than 2 weeks unless directed by a doctor; for children under 12, consult a doctor first.
📊 Aluminum Hydroxide and Magnesium Hydroxide across the U.S. market
How Aluminum Hydroxide and Magnesium Hydroxide appears in the FDA’s National Drug Code Directory — including its dosage forms, strengths, brand names, manufacturers, and FDA-listed product records. These are directory records, not sales or prescription volume.
Share of FDA-listed product records by manufacturer — FDA National Drug Code Directory. Record counts are not sales or prescription volume.
📈 How widely Aluminum Hydroxide and Magnesium Hydroxide is used
A general measure of how commonly Aluminum Hydroxide and Magnesium Hydroxide is prescribed, based on Medicaid — one of the largest public drug programs. The figure below is prescriptions filled in Q1–Q4 2025, summed across every form and brand of the drug.
Think of this as a proxy for how widely Aluminum Hydroxide and Magnesium Hydroxide is used, drawn from freely available public data. Medicaid is just one program — these numbers don’t include Medicare, other government coverage, or commercial and cash-pay prescriptions, so real-world use is higher than what’s shown here.
How commonly is Aluminum Hydroxide and Magnesium Hydroxide prescribed? Of the 1,597 medications we measure, Aluminum Hydroxide and Magnesium Hydroxide ranks #1,129 by Medicaid prescriptions — more than 29% of them.
Utilization by Aluminum Hydroxide and Magnesium Hydroxide product
Pick a product to see its own Medicaid numbers. Each chip is one clinical product — a specific strength & dosage form as defined by RxNorm — with brand-name and generic versions combined.
aluminum hydroxide 40 MG/ML / magnesium hydroxide 40 MG/ML Oral Suspension
Summed across the 1 of 3 listed NDC products with Medicaid activity — every brand and generic of this exact strength & form. RxNorm 243463
Shares are of the Medicaid prescriptions shown here. Product grouping follows RxNorm (the National Library of Medicine’s drug terminology), so “one product” means one strength & dosage form regardless of manufacturer. Dollar figures are gross Medicaid reimbursement before mandatory rebates — rebates (often large, especially for brand-name drugs) are confidential, so actual net cost to Medicaid is lower than shown.
Source: Medicaid State Drug Utilization Data (CMS), aggregated by generic ingredient — summed across every NDC (all brands, strengths, salt forms and dosage forms) of Aluminum Hydroxide and Magnesium Hydroxide, and across all states and both fee-for-service and managed-care claims. A general popularity signal; it excludes Medicare, commercial insurance and cash prescriptions, so it is not total U.S. use. Based on the 1 of 3 listed Aluminum Hydroxide and Magnesium Hydroxide NDCs with Medicaid activity.
🔍 Compare Aluminum Hydroxide and Magnesium Hydroxide products
A representative set of FDA-listed product records for Aluminum Hydroxide and Magnesium Hydroxide — across manufacturers, strengths, and dosage forms, grouped by form with each product’s manufacturer and how the FDA approved it. The same medicine may be made and packaged by different companies, so a single drug can have many directory entries. (It’s also why a refill can look different — a new shape, color, or box — even though it contains the same medication.)
| Strength | Route | Manufacturer / Labeler | Category ⓘ | Details |
|---|---|---|---|---|
| 💊Oral suspension | ||||
| 200; 200 mg/5 mL; mg/5 mL | Oral | A-S Medication Solutions | OTC MONOGRAPH FINAL | Find on DailyMed ↗ |
| ALUMINUM HYDROXIDE 200 mg/5 mL; MAGNESIUM HYDROXIDE 200 mg/5 mL | Oral | PAI Holdings, LLC | OTC MONOGRAPH DRUG | View NDC → |
| 200; 200 mg/5 mL; mg/5 mL | Oral | PAI Holdings, LLC | OTC MONOGRAPH FINAL | View NDC → |
| 200; 200 mg/5 mL; mg/5 mL | Oral | Pharmaceutical Associates, Inc. | OTC MONOGRAPH FINAL | View NDC → |
Showing 4 of 4 products — FDA National Drug Code Directory. See every product, package size and price: browse all 4 Aluminum Hydroxide and Magnesium Hydroxide NDCs →
📈 What people report — real-world data (FDA FAERS)
After a medicine reaches the market, patients, doctors and drugmakers can send the FDA reports of problems they think may be linked to it. Here’s what’s been reported for Aluminum Hydroxide and Magnesium Hydroxide — a signal of what to watch for, not proof the drug caused it.
Source: openFDA, from the FDA Adverse Event Reporting System (FAERS). These are voluntary reports — they don’t prove the drug caused the effect, and counts reflect how often something was reported, not how often it actually happens. Reports also often name the very problem the medicine is taken for — a common reason to file one is that the drug didn’t help — so for a pain reliever you may see “pain” high on the list; that points to why the report was filed, not to the drug causing the symptom. This counts every report that lists Aluminum Hydroxide and Magnesium Hydroxide in any role, so the total runs higher than the FDA’s official dashboard, which counts only cases where the drug is the suspect. For the authoritative figures, see the FDA FAERS Public Dashboard. Always talk to your pharmacist or doctor.
🏛️ The road to your pharmacy
How Aluminum Hydroxide and Magnesium Hydroxide went from FDA review to the pharmacy shelf — the key milestones in its regulatory journey.
Source: Drugs@FDA.
🚨 Recall history
A recall is when a specific batch of a medicine is pulled from the market — usually a manufacturing issue, not a problem with the drug itself. Class I is most serious, Class III least.
Source: openFDA drug enforcement (recall) reports.
📦 Supply & shortage status
Whether Aluminum Hydroxide and Magnesium Hydroxide is in short supply in the U.S. right now, plus any shortage history the FDA has on record. A shortage usually reflects a manufacturing or demand issue — not a safety problem with the drug.
Source: openFDA, from the FDA Drug Shortages database.
🏷️ Sold under these brand names
🏭 Manufacturers & labelers
RxNorm drug class
Aluminum Hydroxide and Magnesium Hydroxide belongs to the Aluminium compounds class.
Classified by RxNorm RxClass — the U.S. National Library of Medicine's standardized drug-classification service (Established Pharmacologic Class from the FDA, the ATC drug family from the WHO, and mechanism of action). Reference only, not medical advice.
🔬 Where this comes from
Core label, product, RxNorm, safety, and utilization data on this page come from the sources identified below. AI-written, editorial, and licensed sections are labeled separately.
How we combine label and product data
HelloPharmacist combines public FDA and NLM records; we don’t author the underlying clinical facts. We identified 1 FDA-filed SPL label set within the page’s selected clinical scope after exact ingredient or ingredient-combination matching and applicable route/form matching. The representative label is the starting point for the displayed reference monograph; the 12 largest stored in-scope SPL records, which may include that representative, are compared section by section, and the longest available version of each section is retained. Forms, routes, brands, labelers, product-listed strengths, and product-record counts are aggregated separately from ingredient-matched FDA NDC Directory records; package records listed above are associated with the linked SPL; and the normalized concept hierarchy comes from NLM RxNorm.
For canonical ingredient pages, bounded product-attributed indication and administration excerpts may be added to the AI evidence, and the generator is instructed to preserve available product, brand, route, and form qualifiers instead of treating one label as universal. Where a section is identified as AI-written, its plain-language text is generated from bounded label evidence. New draft drug pages remain in the admin review queue before first publication. GlaxoSmithKline Consumer Healthcare Holdings (US) LLC is the representative DailyMed label linked for verification and dates; it is not the sole source used for the page.
This is general education, not medical advice — always consult your doctor or pharmacist about your medications and any medical condition. For the exact wording of the linked representative label, view that label on DailyMed; some displayed composite sections may come from other in-scope SPL labels. Learn how we use AI and our data sources & update cadence.