Drug companies that don’t pay Medicare back on time for discarded drugs will pay a penalty worth 25% of the cost of drugs that go unused under the infrastructure bill passed by the Senate Aug. 10 and slated to be taken up by the House in late September. Under Medicare Part B, providers buy drugs, then bill Medicare, which pays 106% of a drug’s average sales price. Drugs must be either administered or discarded once opened if they’re packaged in...