Rumors about sororities are generally greatly exaggerated, especially if the campus isn't very greek-friendly. I've heard a lot of outrageous rumors about my own house on campus and from other greeks; none of them have been true, and it's pretty widely known that when you hear something about another house, you take it with a grain of salt, because 99% of the time? It's not even close to true.
Also, the behavior of one member doesn't necessarily reflect all of the girls in an organization. Just because your daughter's roommate does scandalous things doesn't mean that they are required or endorsed by her sorority; Most organizations have standards or member development boards for a reason.
the roommate would come home not feeling well because they'd made her eat or drink something and wasn't allowed to tell what it was. Once she threw up all night.
The roommate was required to carry condoms and cigarettes around at all times in case her sisters required them (and they did, alot).
If this is happening, and the roommate is in an
NPC organization, it is emphatically NOT allowed. Hazing is officially denounced by the National Panhellenic Conference, and there are EXTREMELY strict policies against it in each of the 26 NPC member groups' constitutions. My fraternity, Alpha Gamma Delta, has developed a program called "See Through the Haze...To a Clearer Purpose" designed specifically to raise awareness of what hazing is and how and why it should be avoided.
Local sororities sometimes do not have the same strict anti-hazing rules as NPC or NPHC groups; With no international or national council to keep an eye on things, sometimes girls get out of hand. However, IF your daughter's roommate is being hazed in an NPC organization, their national council NEEDS to be made aware of it. There is a list of the 26 NPC member groups available
here.