Hi Doctor! My 60 Yr Old Husband Is Experiencing Very

Hi Doctor! My 60 yr old husband is experiencing very low blood pressure- 91/46. He accidentally took 3 -.2 mg Clonidine instead of 2. He also took the rest of his night meds which include- Carvedilol- 12.5 mg, Enalapril-20 mg & 2 Lorazepam -2mg. He has been drinking water constantly and trying to eat & stay awake. What can we do here at the house? Can't afford to go to the Emergency room right now plus I can't drive. Help Please?