Antacids

Introduction to Antacids:

  • These are medications used to neutralize stomach acid, providing relief from symptoms like heartburn, indigestion, and gastroesophageal reflux disease (GERD).
  • They work by increasing the pH of stomach contents, alleviating discomfort and promoting healing of the esophagus and stomach lining.

Mechanism of Action:

  • Antacids neutralize excess hydrochloric acid (HCl) in the stomach.
  • They contain alkaline ions that react with stomach acid to form water and neutral compounds, raising the pH and reducing acidity.
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Types of Antacids:

Systemic Antacids:

    • Affect the body’s acid-base balance beyond the stomach and can enter the bloodstream.
    • May cause metabolic alkalosis if used excessively.
    • Example: Sodium bicarbonate.
    • Not recommended for long-term use due to potential side effects.

Non-Systemic Antacids:

    • Act primarily within the gastrointestinal tract with minimal systemic absorption.
    • Less likely to cause metabolic alkalosis and are safer for long-term use.
    • Common Examples: Aluminum hydroxide, magnesium hydroxide, calcium carbonate.
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Ideal Properties:

  1. Rapid Onset: Provide quick relief.
  2. Prolonged Duration: Have long-lasting effects to minimize frequent dosing.
  3. Neutralizing Capacity: Effectively neutralize stomach acid.
  4. Safety: Have minimal side effects, suitable for long-term use if necessary.
  5. Palatability: Acceptable taste for patient compliance.

Combinations of Antacids:

  • Combination antacids contain more than one type of ingredient to balance benefits and minimize side effects.
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Examples of Combinations:

Aluminum Hydroxide and Magnesium Hydroxide:

  • Balance the constipating effect of aluminum with the laxative effect of magnesium.
  • Examples: Maalox, Mylanta.

Calcium Carbonate and Magnesium Carbonate:

  • Provide effective relief while minimizing the risk of constipation or diarrhea.
  • Example: Rennie.
  • These combinations aim to provide effective symptom relief while reducing the risk of side effects like constipation or diarrhea

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2 thoughts on “Antacids”

  1. Hi, sorry to bother you, I just wanted to ask a quick question about antacids. I found this link to learn more about the medication, but it leads to a 404 error: https://pillintrip.com//medicine/antacid. Could you please clarify what specific types or formulations of antacids are most effective for quick relief and long-term safety? Thanks in advance!

    Reply
    • No bother at all—thanks for your question! Looks like that link isn’t working (we’ll look into it!). For quick relief, antacids like Tums (calcium carbonate) or Mylanta (aluminum/magnesium) work fast. For longer-term use, it’s best to check with a doctor, since some types can cause side effects if used too often. Hope that helps!

      Reply

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