There are weight neutral medications that you should have tried first. Does your psychiatrist and therapist know you have an eating disorder? If not you have to tell them as it greatly effects the medication you should/shouldn't take. I'm on abilify to keep the ED voices calm. you need to calm your ED before taking certain medications. Please don't weight yourself as your ED and self harm can spiral out of control. I would honestly tell your psychiatrist that all these things are preventing you from taking the medication and getting healthy.