Why was Demerol banned?

Could you elaborate on the reasons behind the ban of Demerol? Was it due to safety concerns, addictive properties, or perhaps the availability of safer alternatives? Understanding the motivations behind such a decision can help us appreciate the importance of ensuring medication safety and efficacy. Additionally, it would be insightful to know if there were any particular incidents or studies that led to this ban, and what the consequences of its prohibition have been on patients and healthcare providers.