Best Fast Acting Laxatives in 2026

Original prescription strength: MiraLAX provides effective, predictable constipation relief

Unblocks your system naturally: MiraLAX (PEG 3350) works with the water in your body to hydrate, soften, and ease stool through the colon

No harsh side effects: Relieve constipation without causing cramping, bloating, sudden urgency, and gas. Health Concern: Constipation

ACTIVE INGREDIENT: The active ingredient of this osmotic laxative is Polyethylene Glycol 3350; compare to MiraLAX active ingredient

CONSTIPATION RELIEF: Relieves occasional constipation/irregularity; generally produces a bowel movement in 1 to 3 days

DOCTOR RECOMMENDED ACTIVE INGREDIENT: Polyethylene Glycol 3350 is the Number One Doctor Recommended Laxative Active Ingredient (of U.S. physicians surveyed by an independent market research firm, excluding Therapeutic Fiber and Stool Softeners)

Fleet Saline Enemas provide fast, effective relief from occasional constipation

Soft, pre-lubricated Comfortip for easy insertion with 25% more lubrication for maximum comfort

Ultra pure saline works by increasing water in the intestine to soften the stool to promote a bowel movement. Suggested Age: 18 Years and Up

Includes: One (1) 100-count box of Dulcolax Stimulant Laxative comfort coated tablets

Gentle overnight relief: Dulcolax Tablets gently stimulate the intestines to encourage a morning bowel movement

Relief in 6-12 hours: This overnight laxative provides dependable relief of hard, dry stools caused by occasional constipation and irregularity

NATURAL CONSTIPATION RELIEF: Composed of natural active ingredients, Swiss Kriss Herbal Laxatives are formulated to gently relieve occasional constipation.

SWISS KRISS HERBAL MIXTURE: Made with the natural laxative effect of senna, anti-spasmodic benefits of calendula and caraway, anti gas benefits of strawberry leaves and anise, relaxing benefit of peach tree leaves and natural flavoring of hibiscus flowers.

FAST ACTING LAXATIVE: Our natural laxative for women and men is dependable and offers gentle and effective relief from constipation in approximately 6-12 hours. We recommend taking laxative tablets with a glass of water or fruit juice.

NATURAL CONSTIPATION RELIEF: Composed of natural active ingredients, Swiss Kriss Herbal Laxatives are formulated to gently relieve occasional constipation.

SWISS KRISS HERBAL MIXTURE: Made with the natural laxative effect of senna, anti-spasmodic benefits of calendula and caraway, anti gas benefits of strawberry leaves and anise, relaxing benefit of peach tree leaves and natural flavoring of hibiscus flowers.

FAST ACTING LAXATIVE: Our natural laxative for women and men is dependable and offers gentle and effective relief from constipation in approximately 6-12 hours. We recommend taking laxative tablets with a glass of water or fruit juice.

Phillips' Milk of Magnesia Wild Cherry Flavor liquid laxative works with the body's natural process to relieve occasional constipation and helps you get back to regular

Formulated with Magnesium Hydroxide, Phillips' Milk of Magnesia offers cramp-free, gentle relief of occasional constipation without the use of harsh stimulants. Gives you gentle, overnight relief

This classic, medicine-cabinet standard is available in three liquid flavors: Original, Wild Cherry, and Fresh Mint

NATURAL VEGETABLE LAXATIVE: Rite Aid’s Natural Laxative senna tablets are formulated to relieve occasional constipation (irregularity) and generally produce a bowel movement overnight in 6-12 hours. Compare Rite Aid to the active ingredient in top national brands

GENTLE & EFFECTIVE LAXATIVE: Get reliable occasional constipation relief with Rite Aid Natural Laxative. Containing Sennosides, 8.6 mg, this natural vegetable laxative works overnight to prevent irregularity, while delivering gentle & effective relief.

OVERNIGHT COMPLETE RELIEF: Works overnight to relieve uncomfortable constipation symptoms. No matter what causes your constipation, Rite Aid's here to help. Rite Aid’s Sennosides 8.6 mg natural laxative generally produce bowel movements in 6-12 hours.

Ex-Lax is a stimulant laxative for relief from occasional constipation

Guaranteed to work gently and effectively overnight for dependable relief

Generally produces a bowel movement in 6-12 hours after consumption

INCLUDES: One (1) 100-count box of Dulcolax Gentle Relief Stool Softener Laxative, Gel Caps

GENTLE RELIEF: Dulcolax Stool Softener gently relieves constipation and irregularity

STOOL SOFTENER: Dulcolax Gentle Relief Stool Softener won't make you go, but it will make it easier for you to go

GENTLE, DEPENDABLE, OVERNIGHT RELIEF. Senokot Extra Strength laxative tablets use a standardized senna concentrate to provide gentle, dependable, overnight relief of occasional constipation. Double the strength of Senokot Regular Strength laxative tablets.

CLINICALLY PROVEN. Senokot Extra Strength Laxative Tablets provide gentle, overnight relief from occasional constipation using a natural vegetable laxative ingredient. Use for treating occasional constipation associated with stress or dietary changes.

NATURAL VEGETABLE LAXATIVE INGREDIENT. For your comfort, the active ingredient in Senokot Extra Strength Laxative Tablets is purified senna, manufactured to high quality standards. For dependable overnight relief from occasional constipation.

INCLUDES: One (1) 28-count box of Dulcolax Medicated Laxative Suppositories

FAST RELIEF: These suppositories provide reliable and fast relief in 15-60 minutes

FOR RECTAL USE ONLY: Dulcolax comfort-shaped suppositories are for rectal use only; do not swallow

Laxative made of natural Senna leaves; contains 60 tablets

Works in just 8 to 12 hours

Each tablet contains 15 mg of sennosides B

GENTLE, DEPENDABLE, OVERNIGHT RELIEF. Senokot-S uses a standardized senna concentrate, a natural vegetable laxative with docusate sodium, a stool softener, to provide gentle relief. For predictable, comfortable relief of occasional constipation.

GENTLE, EFFECTIVE RELIEF. Senokot-S Dual Action combines the proven strength of Senokot with the gentleness of a stool softener. For occasional constipation, Senokot-S Tablets provide gentle, effective overnight relief you can count on.

EASES DISCOMFORT OF OCCASIONAL CONSTIPATION. Senokot-S Dual Action Tablets provide gentle relief and ease the discomfort associated with hard, dry stools, using both the natural vegetable laxative ingredient senna as well as a stool softener.

One 48 count box of ex-lax Regular Strength Chocolated Stimulant Laxative Constipation Relief Pills for Occasional Constipation, Chocolate Laxatives.

Gentle laxative tablets formulated for dependable overnight constipation treatment.

ex-lax laxatives with 15 mg sennosides and 10 mg potassium in each piece

𝐆𝐄𝐍𝐓𝐋𝐄 𝐎𝐕𝐄𝐑𝐍𝐈𝐆𝐇𝐓 𝐋𝐀𝐗𝐀𝐓𝐈𝐕𝐄 𝐑𝐄𝐋𝐈𝐄𝐅: Bisacodyl is a laxative. If you suffer from constipation, this type of medication can aid with bowel movement (difficulty pooing). Before surgery, certain tests, or treatments, bisacodyl is also prescribed in hospitals to help patients empty their bowels.

𝐑𝐄𝐋𝐈𝐄𝐅 𝐁𝐘 𝐌𝐎𝐑𝐍𝐈𝐍𝐆 𝐀𝐍𝐃 𝐀𝐂𝐓𝐈𝐕𝐄 𝐈𝐍𝐆𝐑𝐄𝐃𝐈𝐄𝐍𝐓 𝐁𝐈𝐒𝐀𝐂𝐎𝐃𝐘𝐋: Heartland Pharma Bisacodyl gently stimulates the intestines to encourage a morning bowel movement. Heartland Pharma stimulant laxative tablet is made with bisacodyl, which helps increase movement in the intestines.

𝐄𝐅𝐅𝐄𝐂𝐓𝐒 𝐔𝐒𝐔𝐀𝐋𝐋𝐘 𝐈𝐍 𝟔-𝟏𝟐 𝐇𝐎𝐔𝐑𝐒: Bisacodyl is usually taken in the evening, just before one wants to go. In 6 to 12 hours, bisacodyl typically induces bowel movement. Without first seeing your doctor, avoid taking bisacodyl 5mg more frequently than once a day or for longer than a week.

Relieve occasional constipation with Colace® 2-IN-1 Tablets

Docusate sodium, a stool softener, allows water and fats to get into the stool

Standardized senna concentrate is a laxative that helps to gently stimulate motility of the intestines

INCLUDES: One (1) 12-oz. bottle of Dulcolax Stimulant Free Liquid Laxative, Cherry Flavor

STIMULANT-FREE LAXATIVE: Works naturally with your body to help comfortably pass hard, dry stools

FAST*, EFFECTIVE RELIEF: Dulcolax Liquid gives you gentle constipation relief in as little as 30 minutes

Made In USA / Compare to Dulcolax Laxative Tablets active ingredient.

The active ingredient, Bisacodyl 5mg, is a stimulant laxatve.

When taken as directed, it usually produces a bowel movement in 6-12 hours.

LAXATIVE FOR WOMEN: Rite Aid’s Laxatives for Women are specially formulated to work with women's bodies for gentle, dependable, overnight constipation relief. Compare Rite Aid’s Bisacodyl USP stimulant laxative to the active ingredient in top national brands.

GENTLE & EFFECTIVE LAXATIVE: Get reliable occasional constipation relief with Rite Aid Laxative. Containing Bisacodyl USP, 5 mg, this stimulant laxative works overnight to prevent irregularity and constipation and delivers gentle and effective relief.

OVERNIGHT COMPLETE RELIEF: Works overnight to relieve uncomfortable constipation symptoms. No matter what causes your constipation, Rite Aid's here to help. Rite Aid’s women’s laxatives for constipation generally produce bowel movements in 6-12 hours.

Contains one; 60-count bottle of Senokot Dietary Supplement Laxative Gummies for occasional constipation relief

Easy relief ; the gummy way; for occasional constipation relief

Chewable dietary supplement gummy in a great-testing ; mixed berry flavor; with other natural flavors

FAST ACTING: Softgels work effectively and quickly to prevent irregularity and constipation

GENTLE RELIEF: Stimulant-free stool softeners softgels provide dependable relief from your symptoms

COMPARE TO COLACE STOOL SOFTENER: Get the same relief as national brand laxatives for constipation

The below information is per pack only

1 bottle with 7.8oz

Fleet Enema Extra gives you cleansing and extra relief

Gentle laxative comes in a tablet form with a comfort coating to make it easier to swallow

Laxative features the active ingredient Bisacodyl - 5 mg strength per tablet

Laxative tablet generally helps produce a bowel movement in 6 to 12 hours

904792760

THE FRUIT OF 18 YEARS SCIENTIFIC RESEARCH : Are you Tired of Products for Constipation that just Don't Work? Tired of laxative tablets, prune juice, teas, digestive enzymes, enemas, suppositories that don’t provide relief ? Discover the Breakthrough Scientifically-Proven Solution to Effectively Alleviate IBS-C Chronic Severe Constipation Symptoms. Order Digestic, a 100% Natural Plant-Based supplement for Constipation relief.

GENTLE YET EFFECTIVE : Promotes optimal colon well-being regulating bowel activity and the digestive system. Strengthens and supports contraction of stomach muscles for daily bowel movements. Digestic acts as an effective and fast acting natural laxative for constipation.

REVOLUTIONARY FORMULA : Revolutionary Natural Herbal Laxative formulated with Digestive aids and Digestives Stimulants. Natural Detox Cleanse. A unique blend of herbs and Botanicals Alleviating Constipation, IBS C, Bloating and Gas. Natural Stool Softener promoting Gut Health and Bowel Movements.

INCLUDES: One (1) 15-count pack of individually wrapped Dulcolax Kids Soft Chews, watermelon flavor

FAST RELIEF: Dulcolax Kids Soft Chews provide fast relief from constipation in as little as 30 minutes

WATERMELON FLAVOR: New Dulcolax Soft Chews Kids come in a great-tasting watermelon flavor that is kid-approved

MAXIMUM STRENGTH: Rite Aid’s Maximum Strength Laxative tablets are formulated to relieve occasional constipation (irregularity) and generally produce a bowel movement overnight in 6-12 hours. Compare to the active ingredient in top national brands.

GENTLE & EFFECTIVE LAXATIVE: Get reliable, occasional constipation relief with Rite Aid Laxative. Containing Sennosides USP, 25 mg, this stimulant laxative works overnight to prevent irregularity and constipation and delivers gentle and effective relief.

OVERNIGHT COMPLETE RELIEF: Works overnight to relieve uncomfortable constipation symptoms. No matter what causes your constipation, Rite Aid's here to help. Rite Aid’s Sennosides laxative extra strength generally produce bowel movements in 6-12 hours.

Get Things Moving Smoothly Again ... When constipation threatens to ruin your day, Max Lax offers the temporary relief you need. Each maximum strength tablet is packed with sennosides 25mg. Take 2 tablets once or twice daily & stimulate your system.

Wake Up Ready to Go ... We formulated our laxatives for constipation relief for adults to offer overnight relief; so, you won't be crippled by bathroom anxiety. The sennosides laxative generally produces bowel movement in 6 to12 hours.

Impressive Results at a Fraction of the Cost ... Don't fall into the branding trap. Our stimulant laxative tablets have National Brand Equivalency. This means you get the same quality as products that are 2X as expensive. Be savvy. Shop smart. Save big.

Experience Gentle Relief - from constipation and bowel irregularity. Our sennosides 8.6mg, herbal extraction of natural Senna plants supports your bowel movement and digestive health.

Best Results - For the best results of the colon stimulus and overnight relief, take before bedtime. You will love the brand new “You” the next day -- free from feeling constipated, bloated, discomforted, or exhausted. Great constipation relief for adults.

Quick and Effective, Great for Cleansing - Our natural vegetable laxative is formulated to cleanse out your intestinal tract of excess waste. By cleansing your colon and eliminating toxins, you might get a slimmer waistline and a flatter stomach.