Female vigra or something similar

Not sure if posting in the right section but here goes.
What does female viagra actually do? I know what mens viagra does but confused about the stuff for women.
Does it make them really horny or is this just a myth.

The reason I'm asking this is because my wife's lost her labedo du to her health. She has chronic fatigue which as most of you probably know makes you tired all the time.
Our sex life used to be quite regular and anything goes sort of thing. Know its pull my nighty down when your finished and that's once in a blue moon.
We are after something to help us out and get things going again in the bedroom department.
I thought I'd try on here 1st before we go and see the doctor which could be good knows when while this pandemic is around.

Keep safe everyone