Natural laxative to help with constipation.
Senokot is a natural laxative containing powdered Senna pods. It’s gentle with your body but efficient in treating constipation.
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Senokot is a laxative used for the short-term treatment of occasional constipation. Because everyone is different, what this means can vary from person to person. But generally, occasional constipation is when your stools are difficult to pass or you have fewer than three stools in a week.
Senokot belongs to a group of medications called stimulant laxatives, also known as stimulants or contact laxatives. It contains natural Alexandrian and Tinnevelly Senna fruit (pods), equivalent to 7.5mg of sennosides, the active ingredients responsible for the laxative activity. These sennosides contain a sugar group, which is removed by bacteria in your gut to release the active compound, rhein anthrone.
Senokot works in two ways to provide relief from constipation:
Senokot is available in different forms, all of them taken by mouth. Senokot tablets come under different names: Senokot 7.5mg Tablets and Senokot 7.5mg Tablets Adult. Both products contain Senna fruit equivalent to 7.5mg sennosides. The main difference between the two products is that Senokot 7.5mg Tablets Adult is not licensed to be used by people under 18. For this reason, Senokot 7.5mg Tablets Adult are available over the counter, while the other tablets are only available with a prescription.
There’s also Senokot Max Strength Tablets 12 Year Plus and Senokot Max Strength Tablets Adult. These contain Senna fruit that is equivalent to 15mg sennosides, so double the amount of the 7.5mg tablets.
If you’re not keen on swallowing tablets, there’s also Senokot 7.5mg/5ml Syrup 12 Years Plus, suitable for children over 12 and adults. It contains calcium sennosides and it’s available without a prescription.
How we source info.
When we present you with stats, data, opinion or a consensus, we’ll tell you where this came from. And we’ll only present data as clinically reliable if it’s come from a reputable source, such as a state or government-funded health body, a peer-reviewed medical journal, or a recognised analytics or data body. Read more in our editorial policy.
It’s always best to follow your clinician’s instructions on how to use Senokot, but here are some guidelines you can take into account:
Don’t take other drugs within two hours of taking Senokot, since it can influence their absorption in your body.
Senokot takes between 8 and 12 hours to relieve constipation. This gives your body the time it needs to "process" the medication. During this process, the active ingredients called sennosides are carried to your large intestine. There, they transform into their active form known as rhein anthrone.
Because it takes between 8 and 12 hours to work, it’s best to take Senokot at night, before going to bed. This way, you'll likely experience its effects in the morning when you use the bathroom. You can also use Senokot during the day if needed. But keep in mind you might need to wake up at night for a trip to the bathroom.
Your clinician will tell you how many Senokot tablets to take and adjust your dose based on your symptoms and medical history. Typically, you should take one or two Senokot 7.5mg tablets a day, with the maximum dose being four tablets per day (30mg).
You shouldn’t use Senokot tablets for longer than one to two weeks, unless you’re under strict medical supervision. If the symptoms persist or worsen while using Senokot, you should speak to your clinician. It’s possible that they may need to make changes to your treatment.
H3 - What should I do if I make a mistake while taking Senokot?
If you miss a dose of Senokot tablets, just take your next pill according to your schedule. Don’t try to make up for the missed dose by taking two pills at once.
If you accidentally take too many Senokot tablets, you might experience some or all of the following symptoms:
If you have any of these symptoms, contact your doctor or seek medical attention straight away. And take any remaining tablets or the pack with you, if possible.
How we source info.
When we present you with stats, data, opinion or a consensus, we’ll tell you where this came from. And we’ll only present data as clinically reliable if it’s come from a reputable source, such as a state or government-funded health body, a peer-reviewed medical journal, or a recognised analytics or data body. Read more in our editorial policy.
Have something specific you want to know? Search our info below, or ask our experts a question if you can’t find what you’re looking for.
Senokot 7.5 mg Tablets Adult - Summary of Product Characteristics (SmPC). Available at:
Taking senna with other medicines and herbal supplements. Available at:
Standardized senna in the management of constipation in the puerperium: A clinical trial. South African Medical Journal = Suid-Afrikaanse Tydskrif Vir Geneeskunde, 57(3), pp.78–80. Available at:
Efficacy of MaZiRenWan, a Chinese Herbal Medicine, in Patients With Functional Constipation in a Randomized Controlled Trial. Clinical Gastroenterology and Hepatology, 17(7), pp.1303-1310.e18. Available at:
Senna Versus Magnesium Oxide for the Treatment of Chronic Constipation: A Randomized, Placebo-Controlled Trial. American Journal of Gastroenterology, 116(1), pp.152–161. Available at:
Efficacy and Safety of Over-the-Counter Therapies for Chronic Constipation. American Journal of Gastroenterology, Publish Ahead of Print. Available at:
Recent advances on senna as a laxative: A comprehensive review. Journal of Pharmacognosy and Phytochemistry, 6(2), pp.349–353. Available at:
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Quantity | Starting from |
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300 ml | £34.95 |
500 ml | £51.95 Save £6.30 |
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