FASTIN vs SUPRENZA

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 12, 2026·How we rate

Attribute	FASTIN	SUPRENZA
Rating	70/100	New
Pharmacy pays	~$2.54 /30	~$2.54 /30
Type	RX	RX
Active ingredient	PHENTERMINE HYDROCHLORIDE	PHENTERMINE HYDROCHLORIDE
Manufacturer	Glaxosmithkline	Citius Pharms
Dosage forms	Capsule	Tablet, orally disintegrating
Drug class	Sympathomimetic Amine Anorectic	Sympathomimetic Amine Anorectic
Boxed warning	None	None
Treats	Obesity	Obesity

fastin suprenza

Rating

70/100

New

Pharmacy pays

~$2.54 /30

Type

Active ingredient

PHENTERMINE HYDROCHLORIDE

Manufacturer

Glaxosmithkline

Citius Pharms

Dosage forms

Capsule

Tablet, orally disintegrating

Drug class

Sympathomimetic Amine Anorectic

Boxed warning

None

Treats

Obesity

Frequently asked questions

Which is cheaper, Fastin or Suprenza?

Pharmacies pay about the same to acquire either one — roughly $2.54 for a 30-count supply, per the CMS NADAC survey. That is not what you will be charged: your price is set by your insurer and the pharmacy, not by what the drug cost them.

What is the difference between Fastin and Suprenza?

Both Fastin and Suprenza share the active ingredient Phentermine Hydrochloride.

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.