Davis Polk & Wardwell M&A Chair George Bason Jr. has sat across the table from Proctor & Gamble’s in-house legal team before — most notably in 2005, when he represented Gillette when it was acquired by P&G for $57 billion.

It was no different this time around when Bason advised Irish drugmaker Warner Chilcott in its $3.1 billion acquisition of P&G’s prescription drug business on Monday.