Currently on 5 mg of Finasteride. On Topical Minoxidil 5 mg since March, On 3 month check up, MD put me on 1.25 mg of oral Minoxidil. Immediately experienced tinnitus (ringing) in one year. Took myself off of oral Minoxidil and now on topical again. Had ears checked at urgent care, some ear wax extracted, tinnitus still present. Oral Minoxidil is a black box drug, with a LOT of warnings. Stay on the topical.