ALLI vs PRELUDIN

Independent side-by-side comparison.

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

Attribute	ALLI	PRELUDIN
Rating	72/100	72/100
Pharmacy pays	~$207.04 /30	—
Type	OTC	RX
Active ingredient	ORLISTAT	PHENMETRAZINE HYDROCHLORIDE
Manufacturer	Haleon US Holdings	Boehringer Ingelheim
Dosage forms	Capsule	Tablet, extended release, Tablet
Drug class	—	—
Boxed warning	None	None
Treats	Obesity	Obesity

alli preludin

Rating

72/100

Pharmacy pays

~$207.04 /30

—

Type

OTC

Active ingredient

ORLISTAT

PHENMETRAZINE HYDROCHLORIDE

Manufacturer

Haleon US Holdings

Boehringer Ingelheim

Dosage forms

Capsule

Tablet, extended release, Tablet

Drug class

—

Boxed warning

None

Treats

Obesity

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Frequently asked questions

Which is better-rated, Alli or Preludin?

Alli and Preludin are tied at 3.6 out of 5 by our independent rating.

What is the difference between Alli and Preludin?

Alli contains Orlistat, while Preludin contains Phenmetrazine 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.