CAVERJECT IMPULSE vs PREPIDIL

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 23, 2026·How we rate

Possible drug interaction. CAVERJECT IMPULSE and PREPIDIL 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	CAVERJECT IMPULSE	PREPIDIL
Rating	64/100	64/100
Pharmacy pays	—	—
Type	RX	RX
Active ingredient	ALPROSTADIL	DINOPROSTONE
Manufacturer	Pfizer	Pfizer
Dosage forms	Injectable	Topical
Drug class	Prostaglandin Analog	Prostaglandin Analog
Boxed warning	None	None
Treats	Aortic Arch Syndromes, Aortic Coarctation, Patent Ductus Arteriosus	Fetal Death, Uterine Neoplasms, Gestational Trophoblastic Disease

caverject impulse prepidil

Rating

64/100

Pharmacy pays

—

Type

Active ingredient

ALPROSTADIL

DINOPROSTONE

Manufacturer

Pfizer

Dosage forms

Injectable

Topical

Drug class

Prostaglandin Analog

Boxed warning

None

Treats

Aortic Arch Syndromes, Aortic Coarctation, Patent Ductus Arteriosus

Fetal Death, Uterine Neoplasms, Gestational Trophoblastic Disease

Frequently asked questions

Which is better-rated, Caverject Impulse or Prepidil?

Caverject Impulse and Prepidil are tied at 3.2 out of 5 by our independent rating.

What is the difference between Caverject Impulse and Prepidil?

Caverject Impulse contains Alprostadil, while Prepidil contains Dinoprostone — 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.