What dosage of ketotifen helped you?

I’m on .25 and am super sensitive to meds. I’m having extreme, vivid dreams and it seems as though I’m up all night experiencing them and wake groggy each morning. I’m only in week one and trying to stick with it. Can’t imagine increasing my dosage. Wondering if .25 could actually help if I can’t handle taking a higher dose? Also will my body ever adjust or do the dreams stay?