I take 500mg niacin
at bedtime. I take an OTC brand
by Spring Valley called "No Flush" niacin
(I buy it at Wal-Mart). By taking both it and
the Omega 3 at bedtime, I sleep through any uncomfortable side effects... but, with the "No Flush" niacin
, I have very little of the awful "hot
flashes" I got when taking Niaspan. I have mitral valve regurgitation and
(so far) poorly controlled hypertension.