• Opposition to animal subject experiments | • Importance of discovery ADME data |
• Difficulty of human subject experiments | • Greater number of chemical leads |
• Patent expirations and company mergers | • Metabolism as a basis for drug interactions and adverse events |
• Pharmacokinetics requires mathematics | • In vitro model development and validation |
• Lack of government research funding | • Role of transporters |
• Metabolic pathways appear to be well-established | • In silico technologies |
• Lack of exposure to drug metabolism principles during undergraduate and graduate courses | • Pharmacogenetics and clinical pharmacology |