The 5HT3 agonists are the mainstays of prevention .
The 5HT3 agonists are frequently used in combination with other drugs such as corticosteroids and the NK1 receptor antagonist aprepitant .
The 5HT3 agonists are the mainstays of prevention and are frequently used in combination with other drugs such as corticosteroids and the NK1 receptor antagonist aprepitant .