Neonatal Oral Drug Absorption Overview

This question examines how the oral absorption of specific drugs differs in neonates compared to older children and adults. Neonatal physiology, including immature gastrointestinal function, significantly influences drug absorption.

Drug Absorption Statements Explained

• A. Phenytoin: Decreased
  Oral absorption of Phenytoin in neonates is often decreased and can be erratic. Factors like delayed gastric emptying and immature gastrointestinal motility contribute to this. This statement aligns with common pharmacokinetic observations.
• D. Ampicillin: Increased
  The question posits that Ampicillin absorption is increased in neonates. While typical clinical understanding suggests poor or decreased absorption, this statement is considered correct based on the provided answer key for this specific question context.
• B. Digoxin: Decreased
  Digoxin absorption is generally well-tolerated and often comparable, or even slightly higher in neonates compared to adults due to reduced first-pass metabolism. Thus, classifying its absorption as 'Decreased' is typically inaccurate.
• C. Phenobarbital: Increased
  Phenobarbital typically shows good oral absorption in neonates, often similar to adults. An 'Increased' absorption rate is not characteristic. Therefore, this statement is generally considered inaccurate.

Correct Absorption Trends Identified

Based on the analysis and aligning with the provided correct answer:

• Statement A (Phenytoin: Decreased) is considered correct.
• Statement D (Ampicillin: Increased) is considered correct.

Consequently, the correct choice includes only statements A and D.