A federal judge on Monday dealt a blow to the Trump administration by striking down a new rule that would have forced pharmaceutical companies to include the wholesale prices of their drugs in television advertising.

U.S. District Judge Amit Mehta in Washington sided with drugmakers Merck & Co Inc, Eli Lilly and Co and Amgen Inc by halting the U.S. Department of Health and Human Services (HHS) rule from taking effect on Tuesday as planned.