CAMP HILL, Pa. — Rite Aid Corp. said Thursday that same-store sales fell 0.6% in June, while total sales slipped 2.5% during the period.

For the four weeks ended June 27, front-end same-store sales dropped 4.5% and pharmacy same-store sales, which reflected a 484 basis-point negative impact from new generic drug introductions, rose 1.4%.

Rite Aid said that June same-store sales excluding acquired Brooks Eckerd stores were flat versus a year ago. At the acquired Brooks Eckerd stores, same-store revenue decreased 1.8% year over year.

Total drug store sales in June fell to $1.97 billion from $2.02 billion a year earlier, according to Rite Aid.

Meanwhile, the chain’s year-to-date same-store sales, covering the 17 weeks ended June 27, edged up 0.3%. The gain reflected a 1.6% rise in pharmacy same-store sales and a 2.3% decline in front-end same-store sales, the company said.

Overall drug store sales for the 17 weeks fell 1.5% to $8.48 billion from $8.61 billion in the year-ago period.

As of June 27, Rite Aid operated 4,822 stores, compared with 4,988 stores a year earlier.