Is Switching From Zen Retard To Levipil Safe?

Hi doctor am sadiya 23 years old i was using zen retard 300 since 8 years to control attacks now I was affected by tuberculosis and one of the doctor advised me to change the zen and start using the levipil500 ..instead of using zen if I start levipil 500 will it cause any damage to my body?plz advice me..