Overview
The use of propafenone and propranolol in children during clinical treatment was depending mostly on experience. Besides, there was no recommended dose for children in drug instruction. Therefore, the investigators' aim is to study the pharmacokinetics and pharmacodynamics in children.
Eligibility
Inclusion Criteria:
- Patients aged ≤18years. Parental written consent to participate in the study. Patients treat with Propafenone and Propranolol
Exclusion Criteria:
- Patients can not complete the research; Abnormal hepatic and renal function; Patient is allergic to propafenone; There are conditions that researchers do not consider it appropriate to join the research.