This week we speak with Ohio State ACHD fellow Andrew Freddo MD, PhD about a recent large single center study he conducted assessing the cardiovascular drugs that adult Fontan patients are taking and whether they might offer us insights into general well-being. Are there agents that are associated with worse outcomes? If so, is this a situation of the agent causing harm or is it a possible marker of illness? Are there agents associated with improved outcomes? These are amongst the questions reviewed with Dr. Freddo this week. DOI: 10.1016/j.jacadv.2025.102070