What are the Barriers to entry into the pharmaceutical industry?

Barriers to entry in the pharmaceutical industry include high research and development costs, which can exceed billions of dollars, and the lengthy time required to bring a drug to market, often taking over a decade. Strict regulatory requirements imposed by agencies like the FDA necessitate extensive clinical trials and documentation to ensure safety and efficacy. Additionally, existing patent protections create challenges for new entrants, as established companies often hold exclusive rights to profitable medications. Lastly, significant competition and established brand loyalty can make it difficult for newcomers to gain market share.