1150
Although they had complex medical problems, the high serum concentrations of ampicillin at the time of seizures without their recurrence after discontinuing the antibiotic suggest that the seizures were related to the ampicillin therapy.
 ( adverse event: related ,  seizures: Effect, ampicillin therapy: Treatment, ampicillin: Treatment.Drug) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: adverse event,potential therapeutic event, Arguments type: Treatment.Disorder,Treatment.Time_elapsed,Treatment.Dosage,Subject.Race,Treatment.Drug,Treatment.Route,Subject.Disorder,Treatment.Freq,Treatment,Effect,Subject.Population,Treatment.Duration,Combination.Drug,Subject,Subject.Age,Subject.Gender. 
Text: {0} 
Answer:
 ( adverse event: related ,  seizures: Effect, ampicillin therapy: Treatment, ampicillin: Treatment.Drug) 