Lactulose is a synthetic sugar used primarily as a laxative to treat constipation and sometimes to reduce ammonia levels in patients with liver disease, aiding in the treatment of hepatic encephalopathy. It works by drawing water into the bowel, which softens stools and stimulates bowel movements. Lactulose is not absorbed into the bloodstream, making it safe for long-term use in most patients.

The price of Lactulose without insurance varies by pharmacy, dosage, and quantity. Rx.com compares cash prices at more than 60,000 US pharmacies so you can find the lowest price near you. Many people save 60–90% off retail prices with a free Rx.com coupon.

Common side effects of Lactulose may include: Dry mouth, increased thirst, muscle cramps, nausea or vomiting, fast or uneven heartbeat, Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing, Confusion, weakness, muscle twitching, Severe diarrhea. This is not a complete list — consult your pharmacist or doctor for full side effect information.

Generic versions may be available for Lactulose. Generics contain the same active ingredients as brand-name drugs and are typically 80–90% cheaper. Search Lactulose on Rx.com to compare generic and brand prices at pharmacies near you.

The cheapest pharmacy for Lactulose depends on your location and dosage. Rx.com compares prices at CVS, Walgreens, Walmart, Kroger, Costco, and thousands of independent pharmacies. Enter your ZIP code on Rx.com to find the lowest price for Lactulose near you.