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Lactulose — Membership Pricing

Lactulose is not confirmed for no-additional-cost pricing. Membership pricing may be available; confirm the price with the dispensing pharmacy.

Lactulose Pricing

Pricing typePrice
TheDrugClubMembership pricing may be available
Typical Retail$89.99

Membership pricing may be available; confirm the price with the dispensing pharmacy.

About Lactulose

Lactulose is a prescription medication. Ask your doctor if Lactulose is right for you.

Other strengths and forms of Lactulose

Conditions Treated with Lactulose

How to Check Lactulose Pricing

  1. Join TheDrugClub for $19.95/month
  2. Receive your member card by email
  3. Present your card at a participating pharmacy
  4. Check active-formulary eligibility or available membership pricing

Lactulose at Participating Pharmacies

Pharmacy participation and fulfillment options vary. Present your membership card and confirm current pricing before filling.

Related medications

Other medications associated with the same conditions in this catalog.

Also listed for Liver Disease

What Lactulose is approved for (FDA label)

For the treatment of constipation. In patients with a history of chronic constipation, lactulose solution therapy increases the number of bowel movements per day and the number of days on which bowel movements occur.

Source: Read the full FDA label on DailyMed. Label effective date: August 17, 2026.

Excerpt from the FDA-approved prescribing information. This is not medical advice; talk to your doctor or pharmacist.

Adverse reactions for Lactulose (FDA label)

Precise frequency data are not available. Initial dosing may produce flatulence and intestinal cramps, which are usually transient. Excessive dosage can lead to diarrhea with potential complications such as loss of fluids, hypokalemia, and hypernatremia. Nausea and vomiting have been reported. To report SUSPECTED ADVERSE EVENTS, contact the FDA at 1-800-FDA-1088 or http://www.fda.gov/ for voluntary reporting of adverse reactions.

Source: FDA prescribing information (DailyMed). Set ID: 8b79d0d6-b9e3-436e-bab7-01451b6f45cd. SPL document ID: 5942b819-43c4-53a4-e063-6394a90af393. Label effective date: August 17, 2026. Read the full label.

Excerpt from the FDA-approved prescribing information. This is not medical advice; talk to your doctor or pharmacist.

Contraindications for Lactulose (FDA label)

Since lactulose solution contains galactose (less than 1.6 g/15 mL), it is contraindicated in patients who require a low galactose diet.

Source: FDA prescribing information (DailyMed). Set ID: 8b79d0d6-b9e3-436e-bab7-01451b6f45cd. SPL document ID: 5942b819-43c4-53a4-e063-6394a90af393. Label effective date: August 17, 2026. Read the full label.

Excerpt from the FDA-approved prescribing information. This is not medical advice; talk to your doctor or pharmacist.

Drug interactions for Lactulose (FDA label)

Results of preliminary studies in humans and rats suggest that non-absorbable antacids given concurrently with lactulose may inhibit the desired lactulose-induced drop in colonic pH. Therefore, a possible lack of desired effect of treatment should be taken into consideration before such drugs are given concomitantly with lactulose solution.

Source: FDA prescribing information (DailyMed). Set ID: 8b79d0d6-b9e3-436e-bab7-01451b6f45cd. SPL document ID: 5942b819-43c4-53a4-e063-6394a90af393. Label effective date: August 17, 2026. Read the full label.

Excerpt from the FDA-approved prescribing information. This is not medical advice; talk to your doctor or pharmacist.

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