Is it ok to alternate between 10 and 15mg?

[maxpayne]

I want to reduce my dose very slowly because the 15mg is causing me to have trouble sleeping. I was wondering if its ok to alternate between 10mg one day and 15mg the next. I dont plan on going to 10mg any time soon so i was wondering if there are any negative effects of alternating as maybe the balance changes every day? Is anybody alternating?

Thanks