### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
5 yrs. Ago my son was given metoprolol er 25mg from the ether Corp. He took the med 4 days when he just went to sleep and died instantly. I then heard. That ether corp Was known to maybe double dose the pill looked larger then my friends same. Med And mg. My son was 33 yrs old.married 2yrs and. Had a 10 month old son. He died on Christmas evening 2008 My son was born witChatDoctorplicated heart defects, but had his corrective Surgery when he was 5. He did very wellj Except for some a fib he otherwise had a slow heart rate, especially at rest My question to you is why would. His team of cardiologist put him on a betA blocker when they new he had A slow heart rate especially at rest. And maybe the med was. More than 25mg I feel that med caused my sons death .I m sorry to go on and on,but I feel like my son died of a slow heart rate And went into heart failure and not v fib likeThey think..no. autopsy was done.could that. Have been possible Especially if the med was doubled dose? Thank you for your time

### output:

Hello, I have gone through history of your son. I can understand your concern as mother.first let me tell you that metoprolol 25 mg is not high dose.secondly slow heart rate usually does not produce sudden death. I would like to know what exactly was defect in heart and what surgery was performed ?many a times congenital defects though surgically corrected may have residual problem which may trigger arrhythmias and sudden cardiac death. I would like to know what was report of autopsy? I certainly respect your emotions as a mother, but it's my duty explain what may be truth. I would be surely interested to know autopsy report. My condolence to family.