The latter - Lipitor (atorvastatin) vs. Crestor (rosuvastatin): What's the difference? https://www.medicinenet.com/lipitor_atorvastatin_vs_crestor_rosuvastatin/article.htm#lipitor_atorvastatin_vs_crestor_rosuvastatin_whats_the_difference , 10mg is one of the three i've been given. 100mg one a day Cartia and Prexum 10 .. https://www.nps.org.au/medicine-finder/prexum-tablets , being the other two. I bumped into yours again while reading around during a search for an NIH mention for another post.