Table 1

Characteristics of drug product information documents

Drug	Brand name	Company	Document origin	Formulation	Dose (mg)	Date of document
Carbamazepine	Tegretol	Novartis	Europe	Tablets	100	07/06/2013
Carbamazepine	Tegretol	Novartis	USA	Tablets/chewable tablets/suspension	100–400	15/02/2013
Gabapentin	Neurontin	Pfizer	Europe	Hard capsules	300	03/04/2013
Gabapentin	Neurontin	Pfizer	USA	Capsules/tablets/suspension	100–800	01/05/2013
Lamotrigine	Lamictal	GlaxoSmithKline	Europe	Dispersible/chewable	200	01/02/2013
Lamotrigine	Lamictal	GlaxoSmithKline	USA	Dispersible/chewable	25–200	07/23/2012
Oxcarbazepine	Trileptal	Novartis	Europe	Tablets	150	17/04/2013
Oxcarbazepine	Trileptal	Novartis	USA	Tablets/oral suspension	150–600	02/07/2013
Pregabalin	Lyrica	Pfizer	Europe	Hard capsules	25	04/12/2013
Pregabalin	Lyrica	Pfizer	USA	Capsules	25–300	01/06/2013
Topiramate	Topamax	Janssen	Europe	Tablet	100	03/06/2013
Topiramate	Topamax	Janssen	USA	Tablet/sprinkle capsules	25–200	01/10/2012
Zonisamide	Zonegran	Eisai	Europe	Hard capsules	25–100	13/02/2014
Zonisamide	Zonegran	Eisai	USA	Capsules	25–100	24/01/2012
Clomipramine	Anafranil	Novartis	Europe	Capsules	50	10/07/2012
Clomipramine	Anafranil	Novartis	USA	Capsules	25–75	26/10/2012
Duloxetine	Cymbalta	Eli Lilly	Europe	Capsules	30–60	15/07/2013
Duloxetine	Cymbalta	Eli Lilly	USA	Capsules	20–60	01/10/2012
Fluoxetine	Prozac	Eli Lilly	Europe	Hard capsules	20	01/03/2013
Fluoxetine	Prozac	Eli Lilly	USA	Capsules	10–90	01/07/2014
Venlafaxine	Efexor/Effexor	Pfizer	Europe	Capsules	75–100	26/01/2015
Venlafaxine	Efexor/Effexor	Pfizer	USA	Capsules	37.5–150	01/12/2014
Phenytoin	Epanutin/Dilantin	Pfizer	Europe	Oral suspensions/tablets	30–100	04/01/2013
Phenytoin	Epanutin/Dilantin	Pfizer	USA	Capsules/tablets	30–100	07/03/2014