Market sizing for API manufacturers is the first question before any plant decision: where does my molecule actually clear, in what value, growing how fast, and how packed is the lane already. PharmaDB joins declared trade flows to the molecule catalog and to lane-level competitiveness, so a supplier sees the size, the trend, and the entry difficulty in a single brief. The view is molecule_country_flow; the join is to lane_competitiveness and molecules. Refresh cadence is weekly.