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An anti-diarrhoeal that slows the gut so stools firm up, for short bouts of diarrhoea and for diarrhoea from diagnosed IBS. For adults 18 and over, after an online consultation with a GPhC-registered pharmacist.
For adults 18+. Not for bloody diarrhoea, a high temperature, or diarrhoea after antibiotics. For short-term diarrhoea, see a doctor if it lasts more than 2 days. Never take more than 6 capsules a day.
Order before 3pm — same-day dispatch (MON - FRI)
~5 min consultation
Secure & confidential · Reviewed by a UK prescriber
Suitable age
18 years and over
Max per order
1 pack (30 or 60 capsules)
Consultation
Yes, online consultation
Loperamide slows down the movement of the gut, giving it more time to absorb water, so stools become firmer and less frequent. Imodium is a brand of loperamide. It treats the symptom, not the cause, so drink plenty of fluids to replace what you’ve lost.
For IBS with diarrhoea, many people take it before a known trigger, such as a journey or a meal out. Our guide to loperamide for IBS explains timing, and IBS subtypes explains IBS-D. See all our IBS treatments.
| Active ingredient | Loperamide hydrochloride 2mg |
| Used for | Short-term diarrhoea; IBS with diarrhoea (diagnosed) |
| Dose | 2 capsules to start, then 1 after each loose stool; maximum 6 in 24 hours |
| Legal category | To confirm (P or POM, depending on pack); supplied after an online consultation |
| Suitable for | Adults 18+ |
| Price | 30 capsules £7.99 · 60 capsules £12.99 |
Who we can supply: adults 18 and over with short-term diarrhoea, or with diarrhoea from IBS diagnosed by a doctor.
Don’t take loperamide if you have: blood in your poo, or a high temperature; diarrhoea after taking antibiotics; a flare of ulcerative colitis or Crohn’s disease; constipation, a swollen tummy or a blocked bowel.
Tell the prescriber if you have liver problems.
For short-term diarrhoea: see a doctor if it hasn’t stopped after 2 days. Babies, older people and anyone who’s frail can get dehydrated quickly.
For IBS, see your GP first if you have: blood in your poo, or black poo; weight loss you can’t explain, or a lump in your tummy or back passage; a change in your bowel habit and you’re 60 or over; tummy swelling or bloating that won’t go away, especially if you’re 50 or over (women); a high temperature, vomiting, or severe pain that keeps getting worse; a family history of bowel or ovarian cancer, or of coeliac or inflammatory bowel disease, and new symptoms.
Our guide to IBS red flags explains why these matter.
Tell the prescriber if you take ritonavir, quinidine, itraconazole, ketoconazole, gemfibrozil or desmopressin, which can raise loperamide levels or interact with it.
This service isn’t suitable if you’re pregnant or breastfeeding. Please speak to your GP or midwife.
Yes. Imodium is a brand of loperamide. Both contain loperamide 2mg.
It often starts to work within an hour or two.
6 capsules (12mg) in 24 hours. Don’t take more: high doses can cause serious heart problems.
When you have loose stools, or before a known trigger such as a journey. See our loperamide for IBS guide.
If you have blood in your poo, a high temperature, diarrhoea after antibiotics, or a flare of ulcerative colitis. Those need a doctor.
Yes, if the prescriber agrees. Buscopan can add to constipation, so use loperamide only as needed.
We don’t supply it online in pregnancy or breastfeeding. Please speak to your GP or midwife.
Helpful articles and clinical guides related to this treatment category.
Free consultation
Online review by a UK prescriber
Next-day delivery
Order before 3pm where offered
Discreet packaging
Plain outer packaging