09:15 AM EDT, 05/20/2025 (MT Newswires) -- Health care stocks were flat to higher premarket Tuesday with the Health Care Select Sector SPDR Fund ( XLV ) up 0.3% and the iShares Biotechnology ETF (IBB) recently inactive.

Novo Nordisk's ( NVO ) weight-loss drug Wegovy is being offered in smaller doses of a compounded version by online weight-loss tool Noom, Reuters reported, citing senior company officials. Shares of Novo Nordisk ( NVO ) were over 3% higher pre-bell.

NeurAxis (NRXS) shares surged past 160% after the company said the US Food and Drug Administration granted clearance to expand the use of its IB-Stim device for treating functional abdominal pain linked to functional dyspepsia and nausea in patients aged 8 to 21.

Zymeworks ( ZYME ) shares were up over 1% after the company said new preclinical data on its experimental respiratory inflammation drug ZW1528 has shown positive results.