Pharmaceutical preparations for the prevention of seizures or migraines; Pharmaceutical compositions for use as oral solution for the treatment of seizures or migraines; Pharmaceutical formulations for use as oral solution for the treatment of seizures or migraines; Pharmaceutical formulations and compositions containing topiramate for use as oral solution for the treatment of seizures or migraines; Pharmaceutical preparations for the treatment of seizures or migraines; Anticonvulsants