What is Alum & Mag Hydroxide-Simeth? Uses, warnings & side effects

Updated May 14, 2025  •  Published Dec 31, 2020

Alum & Mag Hydroxide-Simeth overview

BRAND NAMES:

  • Almacone, Almacone Double Strength, Alumina-Magnesia-Simethicone, Antacid, Antacid and Gas Relief, Antacid Anti-Gas, Antacid Extra Strength, Antacid Liquid, Antacid-Antigas, Gelusil, Geri-Lanta, Geri-Mox, Equate Antacid, Equaline Antacid, Antacid w/Simethicone

Generic Names:

  • Alum & Mag Hydroxide-Simeth

Uses:

  • Treats upset stomach, heartburn, and gas.

Therapeutic Classes:

  • Antacid, Aluminum/Magnesium Containing, Antacid, Aluminum Containing, Antacid, Magnesium Containing

Forms:

  • Liquid, Tablet, Capsule, Chewable Tablet

How it’s taken:

  • By mouth

What is Alum & Mag Hydroxide-Simeth used for?

What form(s) does Alum & Mag Hydroxide-Simeth come in?

  • Liquid

  • Tablet

  • Capsule

  • Chewable Tablet

What are common Alum & Mag Hydroxide-Simeth dosages?

  • Cup 30ML of 200-200-20MG/5ML

Alum & Mag Hydroxide-Simeth images - What does Alum & Mag Hydroxide-Simeth look like?

  • Alum & Mag Hydroxide-Simeth
    30ml of 200-200-20mg/5ml cup

  • Alum & Mag Hydroxide-Simeth
    30ml of 400-400-40mg/5ml cup

How to take Alum & Mag Hydroxide-Simeth

  • Follow the instructions on the medicine label if you are using this medicine without a prescription.

  • Liquid: Shake well just before you measure a dose. Measure the oral liquid medicine with a marked measuring spoon, oral syringe, or medicine cup.

  • Chewable tablet: Do not swallow whole. Chew thoroughly before you swallow.

  • Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Do not freeze.

  • Follow the instructions on the medicine label if you are using this medicine without a prescription.

  • Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light. Do not freeze.

  • Chewable tablet: Do not swallow whole. Chew thoroughly before you swallow.

  • Liquid: Shake well just before you measure a dose. Measure the oral liquid medicine with a marked measuring spoon, oral syringe, or medicine cup.

What to do if you miss a dose of Alum & Mag Hydroxide-Simeth

Alum & Mag Hydroxide-Simeth contraindications - Who shouldn't take Alum & Mag Hydroxide-Simeth?

  • This medicine is not right for everyone. Do not use it if you had an allergic reaction to simethicone, aluminum, or magnesium.

Alum & Mag Hydroxide-Simeth warnings

  • Keep all medicine out of the reach of children. Never share your medicine with anyone.

  • Call your doctor if your symptoms do not improve or if they get worse.

  • Tell your doctor if you are pregnant or breastfeeding, or if you have kidney disease.

Alum & Mag Hydroxide-Simeth interactions & what to avoid when taking Alum & Mag Hydroxide-Simeth

  • Talk with your doctor before you use this medicine if you are on a low-salt or low-magnesium diet.

  • Antacids affect how your body absorbs other medicines. You might need to take this antacid at a different time than your other medicines. Ask your pharmacist if you have questions.

  • Keep all medicine out of the reach of children. Never share your medicine with anyone.

Alum & Mag Hydroxide-Simeth side effects - How does Alum & Mag Hydroxide-Simeth make you feel?

Serious Side Effects

  • Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing