My Daughter Took 3 20 Mg Of Baclofen About 11

My daughter took 3 20 mg of baclofen about 11 am. The slept all afternoon. If was hard to get her to wake up she keeps falling back to sleep. If she sits down she falls back to sleep. She can't remember what she just did, she is incoherent. Her speech alternates between being slurred & normal. What should we do?