A Walgreens store in south St. Louis is closing next month. The store at 4140 S. Broadway in the Mount Pleasant neighborhood will close Nov. 13. Signs posted at the store said customer prescription records will be available at other Walgreens locations. In a statement, a Walgreens spokesperson said "increased regulatory and reimbursement pressures are weighing on our ability to cover the costs associated with rent, staffing and supply needs." The closure comes as multiple pharmacy chains in…