Hello Pat, Thanks for your feedback to the web site. Of course each retailer can price medications to their best profit advantage, so prices do vary. And prescription drug plans often charge a pre-designated co-payment for a certain supply of medication (e.g. a ninety day supply) regardless if half-tablet doses are prescribed by the physician. Nevertheless, the current price for one hundred 20mg, 40mg, or 80mg Lipitor tablets as listed on drugstore.com is exactly the same, $369.95 (http://www.drugstore.com/pharmacy/drugindex/rxsearch.asp?drug=Lipitor). So for many consumers, tablet splitting can indeed cut medication costs in half. Edward Jardini MD

You stated in Bottom Line that Lipitor 20-40-80 mg are all the same price - not true. I do split my 40 mg pills in half saving maybe $100 a year, BUT the 40 mg is more expensive than the 20 mg for three months.