system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Which of the following drugs cannot cross the blood placental barrier
assistant
The correct answer is  Refer kDT 7/e p116 Glycopyrrolate is a quaternary ammonium compound and is this water soluble and unable to penetrate blood brain barrier