Weaning off Labetalol

I want to wean off these to see how I go. I currently take 200mg x2 a day. Should I cut my tablet in half and do 100mg x2 a day? I've been trying to go through the doctors with this but they are as much use as a chocolate teapot. They don't seem to give a shit in the slightest. I told them I'm nearly out of labetalol.. and I need a new prescription but they still haven't done that for me. So I got 2 days left.. so if I cut in half I'll have a bit extra anyway to hopefully last me until I can get them.. whenever that is. Lol x But regardless I wanna come off them. Should I do 100mg x2 a day as I've been doing 200mg x 2 a day for last 4 weeks. Thank you in advance.