This document discusses frameworks for understanding consumer behavior in healthcare. It describes the consumer decision-making process as involving need recognition, information search, alternative evaluation, choice, and post-purchase evaluation. Consumer decisions are influenced by perceptions of risk, involvement, engagement, and control. The document also outlines several models of health behavior, including the Health Belief Model and Transtheoretical Model. The overall aim is to help pharmacists understand factors that influence patient decisions in order to improve medication adherence and design effective healthcare services.