“…Transvaginal ultrasound or laparoscopic guided aspiration and/or injection of potassium chloride, methotrexate, mifepristone (RU486), prostaglandin or hyper osmolar glucose has been described (12,13,15,18,19). While potassium chloride is nonteratogenic and commonly used, methotrexate, RU486 and prostaglandin are potentially teratogenic and should not be used (12,15).…”