Year-on-year sales at pharmacy chain Rite Aid declined 2.7% to $6.3bn (£3.9bn) for the second quarter to August 29.
The slide was attributed primarily to store closures and non-pharmacy same-store sales. Overall, same-store sales fell 1.1% for the quarter, with a 4.9% decrease in non-pharmacy sales and a 0.8% increase in pharmacy. The number of prescriptions filled increased 1.4%.
Net loss for the quarter was $116m (£71m) compared with $222m (£136m) for the comparable period last year.