Some oral medications used for diabetes (glyburide, diabeta, micronase, amaryl).
The NSAID celebrex
The migraine drug Imitrex.
Although some sulfa
-sensitive people can take
without problem, they do contain ingredients closely related to sulfa
and it is possible to
have an adverse reaction. (It's kind of like the chicken pox/shingles relationship.) Safer alternatives are usually available for those with known allergies.