My uncle is a 60yo black man with high cholessterol dr prescribed niaspan 500 mg over 2 yr ago after 1 yr no change so dbld dosage another year gone by now wants to up it to 1000 mg (seems same to me)( but more expensive) not once has he tried any thing else I began research and found that Niaspan is nothing more than niacin which can be purchased OTC much cheaper than $120.00 per month should we look for diff dr or isd this one just lazy