Three drugmakers have lost a bid to shield information they supplied during an investigation into the marketing of prescription painkillers. In a written opinion, Cook County Associate Judge Sanjay T. Tailor declined to block a newspaper from obtaining documents the pharmaceutical companies gave to the city of Chicago in its inquiry. Tailor held that neither protective orders nor the Illinois Freedom of Information Act prevent USA Today from seeing the documents. Tailor, however, held that the city must redact …