Pharmacology In unconjugated hyperbilirubinemia the risk of kernicterus increases with the use of: A Ceftriaxone B Phenobarbitone C Ampicillin D Sulfonamide 💡 Explanation In unconjugated hyperbilirubinemia the risk of kernicterus increases with the use of: ✓ Correct Answer: D. Sulfonamide