Federal regulators are using their authority under a 2009 law for the first time.
Sen. Lamar Alexander blamed HHS for "resistance" to make test results more accesible.
Republicans are mining a new controversy in Part D for campaign fodder.
Republicans warn an Obama administration rule could "fundamentally undermine" the program.
The Food and Drug Administration (FDA) is loosening the regulatory controls for 13 pharmaceutical companies that will receive expedited entry for drugs they are importing into the United States.
As part of an FDA pilot program, these "highly vetted" companies will have more responsibility for regulating their own supply chains so the agency can focus more attention on preventing other, unapproved drugs that are misbranded and adulterated from crossing the border.
Lawmakers say the draft rules for posting nutritional information go too far.
Sen. Mike Lee said Obama seems to be flouting the law to help Democrats in midterms.
The Obama administration is bolstering the medical benefits for some 9/11 responders and survivors who developed rare forms of cancer because they were exposed to the toxic fallout of the terrorist attacks.
Senate Republicans are pushing the U.S. Food and Drug Administration (FDA) to withdraw support for a prescription drug they say poses a "significant danger" to the public.
The Food and Drug Administration approved Zohydro last October. But the move came less than a year after one of the FDA's advisory panels warned against it because the painkiller contains high amounts of hydrocodone, a drug that government officials say is highly addictive and widely abused.
The Occupational Safety and Health Administration (OSHA) is working through more than 2,700 responses from business, labor and environmental groups about a rule that would protect workers from exposure to silica dust.