CHRONULAC vs LACTULOSE

Independent side-by-side comparison.

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

Attribute	CHRONULAC	LACTULOSE
Rating	70/100	68/100
Pharmacy pays	~$0.73 /30	~$0.73 /30
Type	RX	RX
Active ingredient	LACTULOSE	LACTULOSE
Manufacturer	Sanofi Aventis US	Fresenius Kabi USA
Dosage forms	Solution	Solution, Powder
Drug class	Osmotic Laxative	Osmotic Laxative
Boxed warning	None	None
Treats	Constipation, Hepatic Encephalopathy	Constipation, Hepatic Encephalopathy

chronulac lactulose

Rating

70/100

68/100

Pharmacy pays

~$0.73 /30

Type

Active ingredient

LACTULOSE

Manufacturer

Sanofi Aventis US

Fresenius Kabi USA

Dosage forms

Solution

Solution, Powder

Drug class

Osmotic Laxative

Boxed warning

None

Treats

Constipation, Hepatic Encephalopathy

Frequently asked questions

Which is better-rated, Chronulac or Lactulose?

By our independent rating, Chronulac scores higher — 3.5 vs 3.4 out of 5 for Lactulose. Ratings are based on FDA regulatory (recall-safety) data.

Which is cheaper, Chronulac or Lactulose?

Pharmacies pay about the same to acquire either one — roughly $0.73 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 Chronulac and Lactulose?

Both Chronulac and Lactulose share the active ingredient Lactulose.

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.