"Drug Multiplication" theory — a novel pharmacological model proposing that drug efficacy can be enhanced through a multiplicative interaction between bioavailability (B), effect strength (E), and a unique transformation constant (DMI coefficient). The framework attempts to go beyond traditional linear dose-response models by integrating kinetic behavior with systemic bio-reactive amplification. This manuscript outlines the theoretical background, proposes the DMI-based equation, and discusses its potential implications in pharmaceutical sciences, particularly for optimizing dosage design and therapeutic targeting.