question: 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 with complicated 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