Hi Jessica @jmenassaka, I see that you haven't had any responses since you posted this discussion and was wondering if you found any answers. I did a search of Connect to find other members who have posted about Mexiletine in case you haven't already tried searching Connect. Here's a link that lists the comments from other members - https://connect.mayoclinic.org/search/?search=Mexiletine.

Have you seen any improvement with the drug since you posted this discussion at the end of October?