Spiro dosage?

Sara
Anyone here taking spiro for acne or excess facial hair and had good results with a decreased dosage?
I asked my gyno if I could switch from 100mg a day to 50mg because I was having problems with dizziness, especially when I took it in the morning. She said I could try it and see if it works because I'm petite and have a low bp.
But will I still see results? I really like how my skin looks since I started taking it (no major breakouts for three whole years!) but the dizziness is annoying.