Is It Safe To Drink Red Bull While On Lisinopril?

I am taking lisinopril for my mitral valve regurgitation, its been labeled as severe by my cardiologist yet no current symptoms. my question is if its safe to drink red bull while with this condition and this medication. my cardiologist does not know i drink it daily. i get ekgs every six months and see him ever two weeks or once a month. i am 23 years old