AKT-0488

A 45-year-old man visits his GP clinic seeking sildenafil (Viagra) as he is nervous every time he is intimate with his new partner. He can still achieve his own erections and has morning erections. His recent NHS health screening blood tests were all normal, and he has normal blood pressure. The GP examines his medication history and advises him against using sildenafil. Which of the following medications listed below is not recommended to be used with sildenafil?