As previously reported, the Bextra label also includes a "black box" warning--the most serious kind--for a dangerous skin condition called Stevens-Johnson Syndrome.
According to Pfizer (nyse: PFE - news - people ), Bextra can cause a rare but sometimes life-threatening drug reaction called Stevens-Johnson Syndrome in which the skin, mouth, and eyes can become horribly blistered.
Chakalis later developed a constellation of ailments including Stevens-Johnson syndrome, a life-threatening skin condition that can be caused by a variety of drugs including Provigil.