PROPECIA vs TRELSTAR

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated October 10, 2026·How we rate

Possible drug interaction. PROPECIA and TRELSTAR 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	PROPECIA	TRELSTAR
Rating	72/100	New
Pharmacy pays	~$2.07 /30	—
Type	RX	RX
Active ingredient	FINASTERIDE	TRIPTORELIN PAMOATE
Manufacturer	Organon	Verity
Dosage forms	Tablet	Kit
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	Alopecia, Hirsutism, Prostatic Hyperplasia	Prostatic Neoplasms

propecia trelstar

Rating

72/100

New

Pharmacy pays

~$2.07 /30

—

Type

Active ingredient

FINASTERIDE

TRIPTORELIN PAMOATE

Manufacturer

Organon

Verity

Dosage forms

Tablet

Kit

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

Alopecia, Hirsutism, Prostatic Hyperplasia

Prostatic Neoplasms

Frequently asked questions

What is the difference between Propecia and Trelstar?

Propecia contains Finasteride, while Trelstar contains Triptorelin Pamoate — 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.