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
The level of drug metabolizing enzymes in the liver determines how fast a drug is removed from the circulation. Therefore, it would be expected to find drug metabolizing enzymes
assistant
The correct answer is  Smokers inhale polycyclic aromatic hydrocarbons, which stimulate drug-metabolizing enzymes. Therefore, smokers have higher levels of hepa c drug-metabolizing enzymes than nonsmokers.