An 18 year old boy while riding a motorbike without a helmet sustained a road traffic accident. He is brought to casualty and imaging studies done. He is diagnosed with left frontal skull fracture and cortical contusion. He has had no seizures and his GCS is 10. Antiepileptic drug therapy in this patient
Prophylactic phenytoin reduces incidence of seizures after head injury, though there is no reduction in long term risk
Is contraindicated due to risk of rash
Indicated to reduce incidence of early onset post traumatic seizures
Is likely to cause increased cerebral edema
Indicated to reduce incidence of late onset post traumatic seizures