AN UNBIASED VIEW OF PHENOBARBITAL WHAT IS IT

5. Phenytoin, sodium valproate, valproic acid: The effect of phenobarbital around the metabolism of phenytoin seems to get variable. Some investigators report an accelerating effect, even though others report no effect. Because the effect of phenobarbital to the metabolism of phenytoin just isn't predictable, phenytoin and phenobarbital blood level