How to Save Money on Aluminum Hydroxide/Magnesium Hydroxide in 2026: Coupons, Discounts, and Patient Assistance

Aluminum hydroxide/magnesium hydroxide antacids are already among the most affordable medications available. But if you use them regularly — or you're on a tight budget — there are still ways to pay even less. This guide covers everything from store-brand switching to GoodRx coupons to FSA/HSA reimbursement options.

What Does Aluminum Hydroxide/Magnesium Hydroxide Cost in 2026?

This is an OTC medication, so prices vary by brand, formulation, and retailer. Here's a general price landscape for a standard 355mL (12 oz) bottle of antacid suspension in 2026:

• Brand name (Mylanta Maximum Strength): $12–$15 at most pharmacy chains
• Store-brand generic suspension: $8–$12 at CVS, Walgreens, Walmart, or Rite Aid
• With GoodRx coupon: As low as $6–$7 for generic suspension at participating pharmacies
• Chewable tablet form (generic): $5–$10 per bottle, depending on tablet count and strength

Tip #1: Switch to a Store Brand — It's the Same Medication

The single biggest money-saving move for any OTC antacid: buy the store brand instead of the national brand. Store-brand aluminum hydroxide/magnesium hydroxide products at CVS, Walgreens, Walmart, and Rite Aid contain the same FDA-approved active ingredients in the same milligram amounts. The only differences are the label and price — store brands are typically 20-40% cheaper.

Always compare the active ingredients on the drug facts label to confirm they match: aluminum hydroxide 200mg or 400mg, magnesium hydroxide 200mg or 400mg (per 5mL for suspensions).

Tip #2: Use a GoodRx Coupon

Even for OTC medications, GoodRx sometimes has coupons that can reduce your price. Search for "aluminum hydroxide magnesium hydroxide" or "Mylanta" on GoodRx.com or in the GoodRx app to see what discounts are available at pharmacies near you. GoodRx shows you prices at multiple nearby pharmacies, so you can quickly find the lowest price without calling around.

Tip #3: Use Your FSA or HSA Account

Antacids like aluminum hydroxide/magnesium hydroxide are FSA (Flexible Spending Account) and HSA (Health Savings Account) eligible. This means you can purchase them using pre-tax dollars, effectively giving you a 20-40% discount depending on your tax bracket. Most pharmacy chains and online retailers now automatically flag FSA/HSA-eligible items during checkout or let you filter by eligibility on their websites.

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Tip #4: Buy in Larger Quantities

If you use antacids regularly, buying multi-packs or larger bottles reduces your cost per dose significantly. Amazon, Costco, and Sam's Club often carry multi-packs of generic antacid suspension at substantial savings compared to buying individual bottles at a local pharmacy.

Tip #5: Check Pharmacy Reward Programs

CVS CarePass, Walgreens myWalgreens, and Walmart+ memberships frequently offer discounts or rewards on OTC purchases including antacids. If you regularly buy OTC medications, these programs can provide meaningful savings over time — especially if you're already a member for other purchases.

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Does Insurance Cover Aluminum Hydroxide/Magnesium Hydroxide?

Generally, no. As an OTC medication, aluminum hydroxide/magnesium hydroxide is not covered by standard health insurance or Medicare Part D unless it is specifically prescribed by a doctor and the plan includes OTC benefits. Some Medicare Advantage plans include OTC allowances that cover antacids — check your plan's OTC benefit catalog.

Medicaid coverage varies by state; some state Medicaid programs cover OTC medications if prescribed. Ask your pharmacist or check with your plan.

Is There a Patient Assistance Program for This Antacid?

Because aluminum hydroxide/magnesium hydroxide is widely available as a low-cost generic OTC product (often under $10), traditional pharmaceutical manufacturer patient assistance programs (PAPs) do not typically apply. If cost is a significant barrier, ask your pharmacist about the least expensive equivalent generic — this is almost always more affordable than any brand-name assistance program.

When Should You Consider a Different Medication Instead?

If you're using antacids several times a week for persistent heartburn, it may be more cost-effective — and better for your health — to switch to an H2 blocker (like famotidine/Pepcid) or a PPI (like omeprazole/Prilosec). Read our guide on alternatives to aluminum hydroxide/magnesium hydroxide for more information. If you need help finding your antacid or alternatives at a pharmacy near you, medfinder can search pharmacies on your behalf.