One other thought, the inactive ingredients will differ between Revia, Naltima and Nodict. Do you have any allergies?

One other thing that can be a big problem is opiates or codeine. If you have that in your system when you take Nal, you'll go straight into withdrawal, so review any other meds you're taking and make sure they don't contain opiates of any sort.

Thanks again Joe. I have no allergies and I am not taking anything containing opiates. I will see if I can find a comparison of the inactive ingredients.