I was on oral finasteride and topical min for 14 years with minor sides, but still noticeable. I switched to topical finasteride/min mix (from Happy Head) about a year ago and never looked back. My sides vanished and my hair actually improved. I HIGHLY recommend anyone getting sides on oral finasteride to try topical. I customize to topical finasteride 0.025% and min 6% and apply 1mL twice daily. It really has changed my life.