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Laxatives For Constipation Fast Acting Comparison - October 2025

7 Best Laxatives For Constipation Fast Acting In the UK

1
Best Choice
9.9Exceptional
2
Best Value
9.8Exceptional
3
9.7Exceptional
4
9.5Excellent
5
9.4Excellent
6
9.3Excellent
7
9.2Excellent
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Model

Almus Lactulose Oral Solution (300mls)
Model
Dulcolax Adult Pico Liquid - Constipation Relief Laxative 5mg/5ml Sodium Picosulfate Liquid Oral Solution - 100ml
Model
Movicol Ease Stick Sachets, Citrus, 20 Sachets, Constipation Relief for Adults, Laxatives, Relief, hydrates, softens & Help Restore Natural Bowel Movement
Model
Senokot Strength Max Tablets Adults, Senna Fruit, 10 Count, Constipation Relief for Adults, Dual Action Laxative, Double Action Constipation Relief, Effective Overnight
Model
Almus Constipation Relief Gastro-Resistant Tablets 5 mg Bisacodyl - 3 x 20 Tablets
Model
Microlax Enema 5mlx4 - Fast Treatment of Constipation Or Conditions Requiring Relief of Emptying
Model
Vinco Colon Cleanse 15 Day Detox - Supports Weight Loss - Eliminates Toxins - Relieves Constipation & Bloating - Probiotics for Gut Health - Promotes Regularity - Herbal Stool Softener

Brand

Generic
Brand
Dulcolax
Brand
Movicol
Brand
Senokot
Brand
Almus
Brand
McNeil
Brand
Vinco Supplements

Reviews

120 reviews
Reviews
4,692 reviews
Reviews
12 reviews
Reviews
2,428 reviews
Reviews
1,152 reviews
Reviews
968 reviews
Reviews
164 reviews

Tech Specs

package dimensions

15.9 x 7.1 x 7 cm 600 g
package dimensions
12 x 5.3 x 5.2 cm 190 g
package dimensions
-
package dimensions
-
package dimensions
-
package dimensions
12.1 x 8.3 x 2.7 cm 0.09 g
package dimensions
-

product dimensions

-
product dimensions
-
product dimensions
15 x 5.8 x 13.7 cm 300 g
product dimensions
-
product dimensions
13.5 x 8.5 x 2.1 cm 40 g
product dimensions
-
product dimensions
4.19 x 3.99 x 8.2 cm 50 g

Available On

Available On
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Our Top 3 Picks

Here are the top 3 recommended products with more information to help you find the right product for you
  • 9.9
    1
    Generic
    20% Off

    Almus Lactulose Oral Solution (300mls)

    Why we love it

    Effective for constipation relief.
    Suitable for all ages.
    Supports liver health.
  • 9.8
    2
    Dulcolax
    20% Off

    Dulcolax Adult Pico Liquid - Constipation Relief Laxative 5mg/5ml Sodium Picosulfate Liquid Oral Solution - 100ml

    Why we love it

    Works overnight for quick relief.
    Sugar-free with a pleasant fruit flavor.
    Ideal for those needing gentle overnight relief.
    Main highlights
    • MAT-XU-2400448 (v1.0) February 2024
    • Ingredients: each 5 ml contains 5mg of sodium picosulfate (as monohydrate)
    • Dulcolax Twelve Plus Pico Liquid is available in a 300ml bottle only at the pharmacy counter
    • Dulcolax Adult Pico Liquid works overnight in 6 to 12 hours to relieve constipation while you sleep
    • Dulcolax Adult Pico Liquid is sugar free and comes in a fruit flavour liquid solution
    • Dulcolax Adult Pico Liquid is a laxative that works with your body for effective constipation relief
    • By stimulating both the colon and the rectum it may also help the bowel to return to normal regular function
    • Always read the label
  • 9.7
    3
    Movicol

    Movicol Ease Stick Sachets, Citrus, 20 Sachets, Constipation Relief for Adults, Laxatives, Relief, hydrates, softens & Help Restore Natural Bowel Movement

    Why we love it

    Hydrates and softens stool effectively.
    Easy to prepare and consume.
    Clinically proven constipation relief.
    Main highlights
    • VIRTUALLY UNABSORBED: Movicol Ease targets the stool and not your gut as it is virtually unabsorbed by the gastro-intestinal tract.
    • SIMPLY DISSOLVE IN WATER: A Movicol sachet dissolves in glass of water to a clear solution.
    • RANGE OF FLAVORS: Movicol Ease stick sachets are available in a citrus flavour and a flavour-free option.
    • COMFORTABLE, EFFECTIVE RELIEF: The targeted triple-effect of Movicol Ease harnesses the power of water to hydrate and soften your stool, to restore your natural bowel movement. Don't let a stubborn stool affect your life.
    • CLINICALLY PROVEN: Macrogol is the active ingredient in Movicol Ease which is clinically proven to treat constipation. It binds with water to draw water into your stool to hydrate your poo, thus helping to ensure it's no longer hard, dry and difficult to pass.

Our ranking system

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Features

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Value for money

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When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.