July 2 (Reuters) - The U.S. Food and Drug Administration said on Tuesday it had warned a website called ozempen.com on Tuesday against unlawfully selling versions of Novo Nordisk's weight-loss drugs.

The FDA said the website was offering unapproved versions of obesity and diabetes drugs Ozempic and Wegovy.

"These products are only available pursuant to a prescription from a licensed practitioner," the health regulator said. (Reporting by Christy Santhosh in Bengaluru; Editing by Maju Samuel)