Can you put prickly pears from a cactus in a juicer? does it have to be from a certain cactus? is it good?

i think you may have the leaves of a cactus confused for the fruit called a prickly pear. the prickly pear is red and looks like a pear but has little spikes on it. i can see where the leaves of a cactus sort of look like pears and are indeed prickly, but these are different things entirely. prickly pear juice is red and very sweet/tart. its good in margaritas. you may be able to buy it at specialty latin stores. i have eaten cactus leaves in salads before, but ive never had the juice. they dont really taste like much, so i ume the juice would be the same way.