Pharmacology Which of the following statement is false regarding phenobarbitone: September 2011 A Act primarily at the GABA: BZD receptor-Chloride ion channel complex B Crosses placenta C May precipitate porphyria D No significant interaction with warfarin 💡 Explanation Which of the following statement is false regarding phenobarbitone: September 2011 ✓ Correct Answer: D. No significant interaction with warfarin