Generic Minoxidil 2.5mg and Dutasteride 0.5mg tablet response

I've been using Lonitab 2.5mg and Duman 0.5mg for my hairloss...I am thinking to switch to Dava India's minoxidil tablet and Dutasteride tablet...but I am genuinely worried about their bioavailability and less data of about them...can anyone help me with this?