Sir Dave Brailsford said the package contained a nasal decongestant.
The husband and wife won five gold medals between them in Rio.
'Fancy Bear' has been releasing details of athletes' Therapeutic Use Exemptions.
Froome's former team mate Sir Bradley Wiggins has been caught up in the controversy.
Wiggins has been under pressure to explain his use of corticosteroids.
Hackers have been releasing top athletes' medical data.
Alleged Russian hackers have released confidential data of U.S. and U.K. athletes, including Bradley Wiggins and Venus and Serena Williams.
The medical details of top British cyclists have been released.
The Briton is aiming for his fifth Olympic gold medal.