It happened shortly before 9:00 p.m. on the 3400 block of West Chester Pike in Delaware County.
Initial reports indicate that a man and a woman were crossing the street at a non-crosswalk area.
The man made it across without injury but the woman was struck and thrown several feet.
The woman - who was found in possession of narcotics - was taken to the Hospital of the University of Pennsylvania for treatment.
No word on the extent of her injuries.
Police say the driver of the vehicle stopped and was cooperative.
No word on any charges at this time.