Phenobartibal is a drug that's absorbed and eliminated from the body fairly quickly. So yes, after 3 days the drug would all be out of his system, and the fact that it was stopped abruptly at a time when his body was already under stress would make him likely to have a seizure.
On the other hand, blood is very irritating to brain tissue, so the bleed itself could have triggered a seizure.
Ulcerative colitis forum co-moderator
Moderate to severe left-sided UC diagnosed 2001. Flared for 5 years, finally in remission with Remicade since March 2006. Colazal, Remicade, Nature's Way Primadophilus Reuteri.
Avascular necrosis in both shoulders is my "forever" gift from steroids.
Chronic joint/connective tissue/muscle pain; TKR 05/09
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