REGITINE vs TAMSULOSIN HYDROCHLORIDE

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 21, 2026·How we rate

Possible drug interaction. REGITINE and TAMSULOSIN HYDROCHLORIDE 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	REGITINE	TAMSULOSIN HYDROCHLORIDE
Rating	70/100	70/100
Pharmacy pays	—	~$1.52 /30
Type	RX	RX
Active ingredient	PHENTOLAMINE MESYLATE	TAMSULOSIN HYDROCHLORIDE
Manufacturer	Novartis	Sciegen Pharms
Dosage forms	Injectable	Capsule
Drug class	Alpha-Adrenergic Blocker	Alpha-Adrenergic Blocker
Boxed warning	None	None
Half-life	—	about 14 to 15 hours
Treats	Extravasation of Diagnostic and Therapeutic Materials, Malignant Hypertension, Necrosis	Prostatic Hyperplasia

regitine tamsulosin hydrochloride

Rating

70/100

Pharmacy pays

—

~$1.52 /30

Type

Active ingredient

PHENTOLAMINE MESYLATE

TAMSULOSIN HYDROCHLORIDE

Manufacturer

Novartis

Sciegen Pharms

Dosage forms

Injectable

Capsule

Drug class

Alpha-Adrenergic Blocker

Boxed warning

None

Half-life

—

about 14 to 15 hours

Treats

Extravasation of Diagnostic and Therapeutic Materials, Malignant Hypertension, Necrosis

Prostatic Hyperplasia

Frequently asked questions

Which is better-rated, Regitine or Tamsulosin Hydrochloride?

Regitine and Tamsulosin Hydrochloride are tied at 3.5 out of 5 by our independent rating.

What is the difference between Regitine and Tamsulosin Hydrochloride?

Regitine contains Phentolamine Mesylate, while Tamsulosin Hydrochloride contains Tamsulosin Hydrochloride — 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.