Sales of Wyeth’s top medicines beat estimates; Wyeth announced a delay in its Alzheimer’s disease drug and the falling value of the British pound helped third-quarter results at Glaxo.

Lobbyists and executives say the swing reflects the fact that drug companies’ fortunes depend more than ever on Democrats in power.

Amgen’s experimental bone drug reduced the risk of spinal fractures in women with osteoporosis by 68 percent in a pivotal clinical trial.

Amgen’s experimental bone drug reduced the risk of spinal fractures in women with osteoporosis by 68 percent in a pivotal clinical trial.

The company is halting some pricing practices that critics say were contributing to overuse of its flagship anemia drug Aranesp at a time of mounting concerns about the product’s safety.

Amgen is halting some pricing practices that critics say were contributing to overuse of its flagship anemia drug Aranesp at a time of mounting concerns about the product’s safety.

The Food and Drug Administration approved Nplate for patients with a disorder that causes the body to attack its own platelets, tiny components of blood that help with clotting.

The Food and Drug Administration has ordered Amgen to change the labels for its flagship anemia drugs in a way that could further restrict their use in treating patients with cancer.

The move, which the F.D.A. is expected to announce on Wednesday, represents the first time the agency has ordered changes in a drug’s prescribing information.

Amgen reported a far better than expected quarterly profit as sales of its anemia drug Aranesp rebounded from the preceding quarter.