Complex sentence: Topiramate (brand name Topamax) is an anticonvulsant (antiepilepsy) drug originally produced by Ortho-McNeil Neurologics and Noramco, Inc., both divisions of Johnson & Johnson.
Split into simpler sentences: Topiramate (brand name Topamax) is an anticonvulsant (antiepilepsy) drug. It was originally produced by Ortho-McNeil Neurologics and Noramco, Inc., both divisions of Johnson & Johnson.