Lobbyist groups are banging down the FDA's doors, asking the agency to yank the birth-control patch Ortho-Evra off pharmacists' shelves and insisting that it poses high risk of potentially-fatal blood clots and at much higher rates of instance than the drug companies are disclosing. The higher estrogen levels that patch users are exposed to seem to be the source of the problem, though of course Big Pharm begs to differ. One thing is for sure ladies, if you're on hormone-based birth control — of any sort — Do. Not. Smoke. [NYT]