Introduction Sodium (Na⁺) channels are integral membrane proteins responsible for the rapid upstroke (phase 0) of the action potential in excitable cells such as neurons and cardiomyocytes. By selectively perming sodium ions across membranes, these channels facilitate depolarization, triggering electrical signals essential for neurotransmission, skeletal muscle contraction, and cardiac conduction. As a result, therapeutic modulation … Read more
Introduction Drug interactions are a central topic in clinical pharmacology, profoundly impacting therapeutic efficacy, safety, and patient outcomes. While drug interactions are often discussed in terms of adverse effects or prescribing errors, they also provide opportunities for clinical synergy, rational polypharmacy, and new drug discovery when properly understood. Given the complexity and ubiquity of polypharmacy, … Read more
Introduction The administration of drugs is an essential aspect of medical practice. It involves the process of delivering medication to a patient’s body through various routes. The appropriate route of administration for a given situation depends on several factors, including the drug’s physical and chemical properties and patient-related factors. This chapter discusses the different routes … Read more