I got 5mg Oxybutynin from my doctor, when should I take it?
I've heard it makes you feel tired and light headed, will taking it before bad eliminate those and still be effective for my HH during the day?
How long does it take to feel a difference or start feeling the side effects?

Many thanks
I've heard it makes you feel tired and light headed, will taking it before bad eliminate those and still be effective for my HH during the day?
How long does it take to feel a difference or start feeling the side effects?
Many thanks