These medications are comparable to Proscar (Finasteride) or used for similar purposes. 1  Proscar (Finasteride) 2  Avodart (Dutasteride) 3  Cardura (Doxazosin)  Flomax 1  (Tamsulosin) Hytrin (Terazosin)  Jalyn (Dutasteride 1  / Tamsulosin) Rapaflo (Silodosin)