CEPHULAC vs POTASSIUM CHLORIDE

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 19, 2026·How we rate

Possible drug interaction. CEPHULAC and POTASSIUM CHLORIDE 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	CEPHULAC	POTASSIUM CHLORIDE
Rating	70/100	72/100
Pharmacy pays	~$0.73 /30	$0.04 /mL
Type	RX	RX
Active ingredient	LACTULOSE	POTASSIUM CHLORIDE
Manufacturer	Sanofi Aventis US	Granules
Dosage forms	Solution	Injectable, Capsule, extended release, Solution, Powder, Tablet, Tablet, extended release
Drug class	Osmotic Laxative	Osmotic Laxative
Boxed warning	None	None
Treats	Constipation, Hepatic Encephalopathy	Hypokalemia

cephulac potassium chloride

Rating

70/100

72/100

Pharmacy pays

~$0.73 /30

$0.04 /mL

Type

Active ingredient

LACTULOSE

POTASSIUM CHLORIDE

Manufacturer

Sanofi Aventis US

Granules

Dosage forms

Solution

Injectable, Capsule, extended release, Solution, Powder, Tablet, Tablet, extended release

Drug class

Osmotic Laxative

Boxed warning

None

Treats

Constipation, Hepatic Encephalopathy

Hypokalemia

Frequently asked questions

Which is better-rated, Cephulac or Potassium Chloride?

By our independent rating, Potassium Chloride scores higher — 3.6 vs 3.5 out of 5 for Cephulac. Ratings are based on FDA regulatory (recall-safety) data.

What is the difference between Cephulac and Potassium Chloride?

Cephulac contains Lactulose, while Potassium Chloride contains Potassium Chloride — 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.