A "
therapeutic agent" used as an
anticonvulsant,
antiepileptic,
antiarrhythmic. Its physical appearance is as white
crystals or a powder. It's combustable and
carcinogenic, and can cause
reproductive and
systemic effects in the
user.
Other scarry aspects of diphenylhydantoin: a neoplastigen, a teratogen, a mutagen.
Sources:
physchem.ox.ac.uk
ntp-server.niehs.nih.gov