NORPACE vs SORINE

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 14, 2026·How we rate

Possible drug interaction. NORPACE and SORINE 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	NORPACE	SORINE
Rating	64/100	New
Pharmacy pays	~$25.31 /30	~$2.96 /30
Type	RX	RX
Active ingredient	DISOPYRAMIDE PHOSPHATE	SOTALOL HYDROCHLORIDE
Manufacturer	Pfizer	Aiping Pharm Inc
Dosage forms	Capsule	Tablet
Drug class	Antiarrhythmic	Antiarrhythmic
Boxed warning	Boxed warning	Boxed warning
Half-life	—	about 12 hours (the label gives a mean elimination half-life of 12 hours)
Treats	Atrial Fibrillation, Atrial Flutter, Ventricular Premature Complexes	Atrial Fibrillation, Atrial Flutter, Supraventricular Tachycardia

norpace sorine

Rating

64/100

New

Pharmacy pays

~$25.31 /30

~$2.96 /30

Type

Active ingredient

DISOPYRAMIDE PHOSPHATE

SOTALOL HYDROCHLORIDE

Manufacturer

Pfizer

Aiping Pharm Inc

Dosage forms

Capsule

Tablet

Drug class

Antiarrhythmic

Boxed warning

Half-life

—

about 12 hours (the label gives a mean elimination half-life of 12 hours)

Treats

Atrial Fibrillation, Atrial Flutter, Ventricular Premature Complexes

Atrial Fibrillation, Atrial Flutter, Supraventricular Tachycardia

Frequently asked questions

Which is cheaper, Norpace or Sorine?

Sorine costs pharmacies less to acquire — about $2.96 vs $25.31 for a 30-count supply, per the CMS NADAC survey. That gap is in the pharmacy's cost of goods, not necessarily in what you pay: your price is set afterwards by your insurer and the pharmacy.

What is the difference between Norpace and Sorine?

Norpace contains Disopyramide Phosphate, while Sorine contains Sotalol 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.