FIRMAGON vs PROSCAR

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated October 9, 2026·How we rate

Possible drug interaction. FIRMAGON and PROSCAR are different prescription medicines. Combining or switching between them can cause interactions — talk to a pharmacist or prescriber before making changes. This page is not medical advice.

Attribute	FIRMAGON	PROSCAR
Rating	72/100	72/100
Pharmacy pays	—	~$2.07 /30
Type	RX	RX
Active ingredient	DEGARELIX ACETATE	FINASTERIDE
Manufacturer	Ferring Pharms Inc	Organon
Dosage forms	Kit	Tablet
Drug class	—	5-Alpha Reductase Inhibitor
Boxed warning	None	None
Half-life	—	about 5 to 6 hours in men aged 18 to 60 (mean terminal half-life; after IV dosing the label reports a mean of 4.5 hours, range 3.3 to 13.4 hours)
Treats	Prostatic Neoplasms	Alopecia, Hirsutism, Prostatic Hyperplasia

firmagon proscar

Rating

72/100

Pharmacy pays

—

~$2.07 /30

Type

Active ingredient

DEGARELIX ACETATE

FINASTERIDE

Manufacturer

Ferring Pharms Inc

Organon

Dosage forms

Kit

Tablet

Drug class

—

5-Alpha Reductase Inhibitor

Boxed warning

None

Half-life

—

about 5 to 6 hours in men aged 18 to 60 (mean terminal half-life; after IV dosing the label reports a mean of 4.5 hours, range 3.3 to 13.4 hours)

Treats

Prostatic Neoplasms

Alopecia, Hirsutism, Prostatic Hyperplasia

Frequently asked questions

Which is better-rated, Firmagon or Proscar?

Firmagon and Proscar are tied at 3.6 out of 5 by our independent rating.

What is the difference between Firmagon and Proscar?

Firmagon contains Degarelix Acetate, while Proscar contains Finasteride — they have different active ingredients.

Ratings are based on FDA regulatory (recall-safety) data. This comparison is for general reference only — not medical advice. Always consult a licensed professional before choosing or switching a medication.