Glad I read this second post because I can find no information on Sotalex. Don't have a clue what it is or what it's used for. I would suggest you consult with the doctor who prescribed this for you or your local pharmacist. Your doctor should have been aware that it was no longer available and prescribed something else for you, especially if you've been on this med for 16 years!
Good luck!
Peace
Greenlydia