AN UNBIASED VIEW OF PHENOBARBITAL WHAT IS IT

5. Phenytoin, sodium valproate, valproic acid: The effect of phenobarbital on the metabolism of phenytoin appears to become variable. Some investigators report an accelerating effect, although others report no effect. Since the effect of phenobarbital about the metabolism of phenytoin isn't predictable, phenytoin and phenobarbital blood levels ough