Drugs that relieve indigestion and heartburn by neutralizing stomach acid are known as

RRB Nsg Superintendent -29 April 2025 (Shift-1st)

Pharmacology

Easy

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Explanation

Antacids are alkaline (basic) compounds that work by chemically neutralizing the hydrochloric acid already present in the stomach.
This neutralization reaction raises the gastric pH, providing rapid relief from the burning sensation of heartburn (pyrosis) and the discomfort of indigestion (dyspepsia).
Unlike other acid-controlling drugs like H₂ blockers or PPIs, antacids do not prevent or reduce the secretion of stomach acid; they only neutralize it after it has been produced.

Option A: Antipyretics are medications used to reduce fever (pyrexia).
Option B: Antiemetics are drugs that are effective against vomiting and nausea.
Option C: Analgesics are a class of drugs used to relieve pain (painkillers).

Visual 1: Diagram - A simple illustration showing the stomach with a low pH (acidic). An antacid tablet is shown dissolving and reacting with the acid, leading to a higher, more neutral pH, thus relieving heartburn.
Visual 2: Table - A summary of the four main types of antacids (Magnesium, Aluminum, Calcium, Sodium) listing their primary side effects (diarrhea, constipation) and key clinical considerations for each.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Pharmacology: Drug Classes for Gastrointestinal Symptoms as background academic context rather than a clinical decision trigger.
Nurses must educate patients to take antacids 1 to 2 hours apart from other oral medications. Antacids can change stomach pH and bind to other drugs (chelation), significantly reducing their absorption and effectiveness.
It is crucial to assess the patient's bowel habits. Magnesium-based antacids can cause diarrhea, while aluminum- and calcium-based ones often lead to constipation. A combination product may be needed to maintain normal bowel function.
What if? If a patient with chronic kidney disease asks for an antacid for heartburn, the nurse must advise against over-the-counter magnesium-containing products. In renal failure, impaired kidneys cannot excrete magnesium, leading to toxic accumulation (hypermagnesemia). The patient should consult a doctor for a safer alternative, like a calcium-based antacid with monitoring.

How to Approach the Question

First, analyze the question to identify the core function of the drug being asked about. The keywords are 'relieve indigestion and heartburn' and 'neutralizing stomach acid'.
Second, systematically review the options provided and recall the primary therapeutic action of each drug class.
Antipyretics are for fever.
Antiemetics are for nausea and vomiting.
Analgesics are for pain.
Antacids are for neutralizing acid.

Concept Tested & Keywords

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