Tab ← All covered medications
Everything else

Lactulose

Lactulose is a covered generic medication on Tab's $0 list. Here's what it's used for, typical dosing, and side effects, sourced from FDA-approved drug labeling.

$0 with active Tab membership Oral Osmotic Laxative [EPC]

What it's used for

This medication is used to prevent and treat portal-systemic encephalopathy, including stages of hepatic pre-coma and coma, by helping lower blood ammonia levels.

Source: U.S. FDA-approved prescribing information (openFDA).

Typical dosing

The usual adult oral dose is 2 to 3 tablespoonfuls three or four times daily, adjusted to produce 2 to 3 soft stools per day.

Dosing shown here is the general FDA-labeled range. Your prescribing clinician determines the exact dose, form, and schedule for you — this is not a substitute for medical advice.

Boxed warning / key safety info

This medication can lead to a buildup of gas that poses an explosion risk during certain surgical procedures involving electrical instruments.

Common side effects

Common side effects include gas, bloating, belching, and abdominal discomfort or cramping.

Covered strengths on the Tab $0 list

Lactulose 10 Gram/15 mL (15 mL) SolutionLactulose 10G/15mL SolutionLactulose 20 G/30 mL Solution

Covered at $0 with an active Tab membership when filled at a participating pharmacy nationwide or through mail order. A licensed clinician must prescribe the medication.

Related medications

AcebutololAcetaminophenAcetazolamideAlendronate SodiumAllopurinolAmantadine

Other everything else medications covered at $0 with an active Tab membership.

See the full covered list. Find yours in seconds.

Search all medications →
Tab is a membership and prescription-discount program—not insurance, and not a substitute for it. $0 pricing applies to medications on the current covered generic list with active membership, at participating pharmacy locations nationwide or through mail order, and is subject to change. Mail-order home delivery is preferred for recurring prescriptions; activation, availability, and delivery timing apply. This page is for general reference, drawn from FDA-approved drug labeling, and is not medical advice. Only a licensed clinician can determine if a medication is right for you.