Shares rallied Wednesday even after the drugmaker lowered its full-year guidance as alternative versions of its blockbuster weight-loss and diabetes drugs in the U.S. hold back its sales.

Novo Nordisk has slashed its full-year revenue and profit forecasts for the first time since launching its blockbuster weight-loss drug Wegovy, as unauthorised compounded versions of its GLP-1 drugs eat into sales — particularly in the United States,

Pedersen and Maggie Fick COPENHAGEN/LONDON (Reuters) - Obesity drugmaker Novo Nordisk cut its sales forecasts on Wednesday for the first time since the launch of its Wegovy weight-loss drug four years ago,