First, talk to your doctor.
That's a short-acting medication. I forget the half-life, but I know it's not very long.
I'm surprised your doc prescribed a single dose per day - there's practically no way for it to last that long (without side effects or having a high spike and then low later - just what you're experiencing). A short/fast acting med is typically split into 2 doses to even it out during the day.
Perhaps a different med would be more useful, something slower-acting.
But, again, talk to your doc. They'll know what way to go.
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