Don't think you can get champix at least that's what boots told me.
local pharmacy gave me Quomem, but would only give me 2 blister packs 15 tablets in each pack, 1 a day for 3 days, 2 a day for 4 days, stopped on day 8 took 1 tablet a day till they were finished.
smoked 20> 30 a day for the last 40 odd years, been off them for 28 days now.
wasn't as bad as i thought it would be but its still early days.