03:57 PM EDT, 05/21/2024 (MT Newswires) -- Health care stocks rose late Tuesday afternoon, with the NYSE Health Care Index adding 0.4% and the Health Care Select Sector SPDR Fund (XLV) increasing 0.1%.

The iShares Biotechnology ETF (IBB) fell 0.6%.

In corporate news, Mangoceuticals ( MGRX ) said it is developing proprietary oral formulations of semaglutide and tirzepatide to help with weight management. The shares surged 101%.

Biodexa Pharmaceuticals ( BDRX ) shares surged 88% after it said Tuesday that "positive" and "statistically significant" results from a phase 2 trial of its newly licensed eRapa in familial adenomatous polyposis are scheduled for presentation at the annual meeting of the Digestive Disease Week.

American Oncology Network ( AONC ) said that it has decided to delist its class A shares and warrants from Nasdaq, with the last trading day expected on or about June 7. Its shares plunged 35.7%.

Senate Finance Committee Chair Ron Wyden is seeking information on Pfizer's ( PFE ) tax practices. In a letter sent Monday to Pfizer ( PFE ) Chief Executive Albert Bourla, Wyden asked how Pfizer ( PFE ) managed to book most of its profits offshore, despite the US market contributing significantly to its global revenue. Pfizer ( PFE ) shares were rising 0.3%.