One, a 33-year-old man, developed confusion, diaphoresis, disorientation, agitation, and tachycardia after discontinuing gabapentin 3600 mg daily. He received benzodiazepines without benefit ...

Lactulose 20 g orally twice daily and rifaximin 200 mg orally three times daily ... The patient's regular noontime dose of gabapentin 300 mg was given, with a 100-mg dose given that evening.