>>Did you take niacinamide before switching to niacin? If so, then for how long?>>
Yes I took Niacinamide 15 minutes before the B3. I did this until I got to doses of 600mg/1500mg for Nnicotinic acid/Niacinimade. Ever since then I have only been taking nicotinic acid.
>>Do you still flush after niacin?>>
Yes but they are small. Your body will be able to tolerate more if you are consistent with your doses. I once took 1500mg at once on an empty stomach, I think I over did it, I do not recommend you do that.
From my experience, I will not go over 500mg in a single dose.