What is Geri-Mox? Uses, warnings & side effects

Updated May 14, 2025  •  Published Jan 29, 2023

Geri-Mox overview

BRAND NAMES:

  • Almacone, Almacone Double Strength, Antacid, Antacid and Gas Relief, Antacid Anti-Gas, Antacid-Antigas, Antacid Liquid, Antacid w/Simethicone, Antacid Extra Strength, Geri-Mox, Good Neighbor Pharmacy Antacid, Good Neighbor Pharmacy Antacid Anti-Gas, Geri-Lanta, Equate Antacid, Equaline Antacid

Generic Names:

  • Geri-Lanta

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 Geri-Mox used for?

What form(s) does Geri-Mox come in?

  • Liquid

  • Tablet

  • Capsule

  • Chewable Tablet

What are common Geri-Mox dosages?

  • Bottle 355ml of 200-200-20mg/5ml

How to take Geri-Mox

  • 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.

What to do if you miss a dose of Geri-Mox

Geri-Mox contraindications - Who shouldn't take Geri-Mox?

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

Geri-Mox 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.

Geri-Mox interactions & what to avoid when taking Geri-Mox

  • 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.

Geri-Mox side effects - How does Geri-Mox 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

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