Norco is hydrocodone and percocet is oxycodoneboth w/ aceta. (the good thing about norco 7.5 is the low dose of Aceta).5-7.5-10) But deff. taking a 7.5 mg Norco/Vicodin is a little stronger than a single 5mg percocet. For me personaly, with the pain i've experienced. 5 mg's alone of oxycodone...