The expansion of pharmaceutical e-commerce has revolutionised the healthcare and retail pharmacy industries. This study analyses the variables that have contributed to the growth of online pharmacies and how this trend has affected consumers' prescription drug purchasing habits. This paper examines the factors that have contributed to the rapid expansion of online pharmaceutical sales by analysing the market, surveying consumers, and looking closely at the case studies of the most popular platforms. According to the study's findings, a number of important factors have contributed to the meteoric climb of online pharmacies, including technological developments, wider internet access, changing customer tastes towards accessibility and convenience, new regulations, and the effects of the COVID-19 epidemic. It also delves into the many reasons why people use online pharmacies, including lower prices, more variety, anonymity, and convenience of access to information.