Thank you. I think you are correct that the final withdrawal cost to MRK will be less than $1 B. I will still wait for a sub-32 entry. There should be a lot of bad press for MRK in the next few weeks.
Pfizer can claim that their drug has no problem because they do not have a study that indicates that it has a problem. It could be due to a physiological weakness with colorectal patients, a drug interaction problem with some class of other medications that colorectal patients commonly take such as mesalamine, ...or not.