Waihangahia tētahi putanga matatini ake o tēnei rerenga kōrero Pfizer's patent protection on Norvasc lasted until 2007.
Ko te tikanga, ko tētahi putanga matatini ake o te rerenga kōrero ko "Ko te tiaki ārai ārai ārai a Pfizer i runga i te Norvasc tae noa ki te tau 2007, ko te mutunga o te mana ārai i puta i muri mai i te tau 2007".