…he must be off on his market size by a factor of 10.
He’s not off by nearly that much, IMO. If you define blood thinners as both antiplatelets and anticoagulants (which is regrettably what many authors in the lay press do), these drugs will likely do much more than $10B in worldwide annual sales by the end of the decade. (Plavix has done almost that much all by itself.) I think $30B of annual sales is very likely, so the author is off by “only” a factor of three :- )