So glad you are finally being treated. I think you'll find the midodrine helpful. Did he prescribe it for 3 times a day? If so, make sure to take them during daytime hours not in the evening.

The medication works fast...like 15 to 20 minutes. But it doesn't last long as for why you have to take it 3 times a day.

Let us know whether it helps. You still have to stay hydrated.