Dulcolax® Liquid Laxative

  • Fast relief
  • Liquid laxative

Dulcolax® Liquid Laxative is a stimulant-free laxative made to relieve occasional constipation fast.

Each 15 mL dose contains 1200 mg of the active ingredient, magnesium hydroxide. Within 30 minutes to 6 hours, it works naturally with your body to draw water to the colon and help you go. Don’t let occasional constipation get in your way — get relief in as little as 30 minutes with Dulcolax® Liquid Laxative.

Voted most trusted Laxative brand. Logo of #1 Most Trusted award, BrandSpark Most Trusted Awards, by Pharmacists, 2023. Includes logo of Newsweek.

Where to buy

Dulcolax® Liquid Laxative benefits

Relief in 30 minutes to 6 hours

Provides fast, gentle relief.

Gentle relief

Stimulant-free formula provides effective relief.

Works naturally with the water in your body

Hydrates to reduce discomfort.

Use and dosage

Shake Dulcolax® Laxative Liquid well, immediately before each use. 

Use convenient pre-measured dose cup for accurate dosing. 

It’s recommended to be taken as a single daily dose or in divided doses with a full glass (8 oz.) of liquid. 

Do not exceed the maximum recommended daily dose in a 24-hour period.

adults and children 12 years of age and over:

  • 30 mL to 60 mL

children 6 to under 12 years of age:

  • 15 mL to 30 mL

children 2 to under 6 years of age:

  • 5 mL to 15 mL

children under 2 years of age:

  • ask a doctor

Product information

    Active Ingredient (in each 15 mL):
    Magnesium hydroxide USP 1200 mg

    Saline Laxative

    Inactive Ingredients:

    Liquid Cherry: anhydrous citric acid, D&C red #28, flavor, glycerin, purified water, sorbitol, sucrose, xanthan gum

    Liquid Mint: flavor, mineral oil, purified water, saccharin sodium 

    • for relief of occasional constipation and irregularity
    • this product generally produces a bowel movement in 30 minutes to 6 hours

    Ask a doctor before use if you have

    • kidney disease
    • a magnesium-restricted diet
    • stomach pain, nausea or vomiting
    • noticed a sudden change in bowel habits that lasts more than 2 weeks

    Ask a doctor or pharmacist before use if you are taking a prescription drug. This product may interact with certain prescription drugs.

    Stop use and ask a doctor if

    • you have rectal bleeding or fail to have a bowel movement after using this product. These could be signs of a serious condition.
    • you need to use a laxative for more than 1 week

    If pregnant or breast-feeding, ask a health professional before use. 

    Keep out of reach of children. In case of overdose, get medical help or contact a Poison Control Center right away.

    • each 15 mL contains: 
      • Cherry: calcium 20 mg, magnesium 595 mg, potassium 5 mg, sodium 3 mg
      • Mint: calcium 20 mg, magnesium 595 mg, sodium 2 mg 
    • do not use if safety seal is broken or missing
    • close cap tightly after each use
    • store at room temperature 20°- 25°C (68° - 77°F)

Frequently asked questions

  • You may be able to use your HSA or FSA tax-preferred savings account to purchase certain OTC products, including Dulcolax®. The passage of the CARES Act by Congress includes provisions to restore OTC eligibility under tax-preferred HSA and FSA accounts. Plan details vary, so save your receipt and check with your benefits or health provider for eligibility.

  • Dulcolax® Liquid Laxative works naturally with the water in your body (stimulant free) to provide gentle, fast-acting constipation relief in as little as 30 minutes (30 minutes to 6 hours).

  • Dulcolax® Liquid Laxative works faster than MiraLAX. Dulcolax® works in as little as 30 minutes (30 minutes to 6 hours) while MiraLAX works in 1–3 days (based on product labeling).

  • Yes, when used as directed, Dulcolax® Liquid Laxative can be used for children age 2+. The recommended dosage is 5 mL to 15 mL for children 2 to 6 years old, 15 mL to 30 mL for children 6 to 12 years old, and 30 mL to 60 mL for children 12 years of age and older. For children under 2, consult your doctor.

  • Yes, when used as directed.

    If you need to use for more than 7 days, please stop taking and discuss with your doctor.

    For additional questions regarding usage, side effects, or storage instructions, please refer to the Dulcolax® Liquid Laxative Drug Facts Panel or contact your healthcare professional.

Dulcolax® family of products

Dulcolax® products help your digestive system get moving with gentle overnight, gradual, or fast-relief solutions. Find the Dulcolax® product that’s right for you.

Stay informed

Occasional constipation is a common condition with a wide range of possible causes. We know how unpredictable and frustrating constipation can be, so we are here to help you identify the possible causes and learn how to address them.