Health care stocks declined Friday afternoon with the NYSE Health Care Index down 0.6% and the Health Care Select Sector SPDR Fund (XLV) easing 0.1%.
The iShares Biotechnology ETF (IBB) rose 0.3%.
In corporate news, Novo Nordisk (NVO) shares fell 5.6% after the Department of Health and Human Services said the company's Ozempic, Wegovy and Rybelsus are among the 15 additional drugs selected for US Medicare price negotiations.
Zentek (ZTEK) shares jumped 18% as the company expects to begin sales of its ZenGUARD enhanced air filters in Canada by the end of March.
Zai Lab (ZLAB) said its new drug application for KarXT to treat adult patients with schizophrenia was accepted by China's National Medical Products Administration. Its shares rose 2%.
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