Shares of Pfizer rose about 5% after U.S. President Donald Trump said on Tuesday the drugmaker will cut the price on all of its prescription drugs sold to the Medicaid insurance program and will intro... ...

President Donald Trump will announce on Tuesday that Pfizer plans to lower prices on several of its medications in the United States, a White House official said. ...

AstraZeneca said it will offer its asthma and diabetes drugs at an up to 70% discount in the U.S. ahead of a Trump administration deadline for pharmaceutical companies to cut drug prices. ...

道琼斯指数5月表现 - 道琼斯工业平均指数5月小幅上涨3.9%，30只成分股中70%实现正收益 [1] - 医疗保健板块两只表现最差个股拖累指数涨幅，其中一只暴跌超25% [1] 联合健康集团(UnitedHealth Group) - 股价5月暴跌26.6%，主因CEO突然更替及全年盈利指引暂停 [3] - 司法部针对"可能存在的医保欺诈"展开刑事调查 [4] - 被指控通过向养老院支付秘密奖金减少医院转诊，危及患者健康 [4] - 公司预计2026年恢复增长，但年内股价已累计下跌38% [5] 默克公司(Merck) - 股价5月下跌9.8%，触及52周低点73.31美元 [6] - 受特朗普行政命令影响，需降低处方药价格，同时关税导致成本增加2亿美元 [6] - 关键肿瘤药物Keytruda专利到期后可能损失20%销售额 [7] - 花旗将目标价从115美元下调至84美元，反映增长挑战 [7] - 当前股息率达3.9%，拥有强劲研发管线 [8]