Hi. Welcome to HealthcareMagic. It is very important to go off Drugs when you have a surgery.It happens that the anesthesia can cause severe complications.You should inform your Anesthetist about the Meth you take.This helps him in assessing your body reaction status to the anesthesia. Hope you had a safe surgery.Take care.i. Welcome to HealthcareMagic. It is very important to go off Drugs when you have a surgery.It happens that the anesthesia can cause severe complications.You should inform your Anesthetist about the Meth you take.This helps him in assessing your body reaction status to the anesthesia. Hope you had a safe surgery.