### Human:\nmy roommate has been throwing up for almost 12 hours (every 30-60 minutes) and is now vomiting bile. how can i help?\n\n### Assistant: you need to take him to the emergency room as soon as possible. vomiting that does not subside needs to be treated immediately and he can be in a lot of trouble because he can become severely dehydrated (probably already is) which means his body is craving certain nutrients that help his blood pressure and his heart.