Efficacy and Safety of Oral Minoxidil in Comparison to Topical Form in Male Pattern Hair Loss
Attached paper discussed a clinical trial comparing topical and oral Minoxidil.
https://www.ncbi.nlm.nih.gov/m/pubmed/31823902/
This paper demonstrates the efficacy of combination therapy in treating male and female pattern hair loss.
The key is to be compliant with at least one therapy for success.
Combination therapy makes the success more likely for patients that can do two treatments at once.