aluminum hydroxide, magnesium hydroxide, simethicone antacids (Mylanta, Mylanta Maximum Strength)

  • Pharmacy Author:
    Omudhome Ogbru, PharmD

    Dr. Ogbru received his Doctorate in Pharmacy from the University of the Pacific School of Pharmacy in 1995. He completed a Pharmacy Practice Residency at the University of Arizona/University Medical Center in 1996. He was a Professor of Pharmacy Practice and a Regional Clerkship Coordinator for the University of the Pacific School of Pharmacy from 1996-99.

  • Medical and Pharmacy Editor: Charles Patrick Davis, MD, PhD
    Charles Patrick Davis, MD, PhD

    Charles Patrick Davis, MD, PhD

    Dr. Charles "Pat" Davis, MD, PhD, is a board certified Emergency Medicine doctor who currently practices as a consultant and staff member for hospitals. He has a PhD in Microbiology (UT at Austin), and the MD (Univ. Texas Medical Branch, Galveston). He is a Clinical Professor (retired) in the Division of Emergency Medicine, UT Health Science Center at San Antonio, and has been the Chief of Emergency Medicine at UT Medical Branch and at UTHSCSA with over 250 publications.

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GENERIC NAME: aluminum hydroxide, magnesium hydroxide, simethicone antacids

BRAND NAME: Mylanta, Mylanta Maximum Strength, Mylanta Ultimate Strength, Maalox, Maalox Advanced, Gelusil

DRUG CLASS AND MECHANISM: Aluminum hydroxide and magnesium hydroxide act as antacids by neutralizing stomach acid that result in an increasing pH in the stomach. Simethicone is anti-gas medication that works by lowering surface tension of gas bubbles, which gives relief from gas.

PRESCRIPTION: No

GENERIC AVAILABLE: Yes

PREPARATIONS: Aluminum/magnesium antacids are available as an oral chewable tablet, liquid, or suspension.

Liquid

Mylanta and Maalox contain 200 mg aluminum hydroxide, 200 mg magnesium hydroxide, and 20 mg simethicone per 5 ml.

Mylanta Maximum Strength and Maalox Advanced contain 400 mg aluminum hydroxide, 400 mg magnesium hydroxide, and 40 mg simethicone per 5 ml.

Mylanta Ultimate Strength contains aluminum hydroxide 500 mg and magnesium hydroxide 500 mg per 5 ml.

Mylanta is available in 12 ounce liquid bottles. Maalox is available in 5, 12, and 26 ounce bottles.

Chewable Tablet

200 mg aluminum hydroxide, 200 mg magnesium hydroxide, 25 mg simethicone

Suspension

225 mg aluminum hydroxide, 200 mg magnesium hydroxide, 25 mg simethicone per 5 ml.

STORAGE: Aluminum and magnesium antacids should be stored at room temperature 20 C to 25 C (68 F to 77 F).

PRESCRIBED FOR: Aluminum and magnesium antacids are used for acid indigestion, heartburn, and sour stomach. Simethicone containing antacids provide additional relief from bloating and pressure due to gas.

DOSING:

  • Adults and children of 12 years and older: Take 2 to 4 teaspoons (10-20 ml) or 2 to 4 tablets by mouth every 4 to 6 hours one before or 3 hours after a meal. Do not take more than 12 tablets a day.
  • Children under 12 years of age: Consult a doctor.

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