Whether or not hair loss drugs such as Propecia (finasteride) and Rogaine (minoxidil) are required before, during and after hair transplant surgery is a popular topic of discussion amongst hair transplant patients and physicians alike. While some hair surgeons are true proponents of using Propecia in particular to help maintain existing natural hair and to prevent future thinning hair and hair loss, other physicians aren't so dogmatic about it. Some hair restoration physicians feel that it ultimately depends on the patient.