A dozen federal inspections of a Johnson & Johnson factory for nonprescription medicines in the past month show a host of violations that could affect the products.

A new report on the inspections at the Lancaster, Pa., factory show a pattern of carelessness in cleaning and maintaining equipment, investigating problems and maintaining records.

In some cases, medicine batches made during equipment failures were not checked for quality.

Food and Drug Administration investigators had to ask for information many times in some cases, and then wait days to get it.

The agency's report comes out as J&J is under scrutiny for eight recalls covering tens of millions of bottles of pain reliever Tylenol and other products.