Patient info Open main menu

HIDRASEC 100 mg hard capsules – patient leaflet, side effects, dosage

Last updated: · Text from the MHRA, as of · About this document

Medicine status: No longer supplied Details

Medicine strength:
100 mg
Other strengths and forms:
Contains active substance:
Similar medicines:

Patient leaflet - Hidrasec 100 mg hard capsules

1. What Hidrasec is and what it is used for

Hidrasec is a medicine for the treatment of diarrhoea.

Hidrasec is indicated for the treatment of symptoms of acute diarrhoea in adults, when diarrhoea can not be treated causally.

Racecadotril can be administered as a complementary treatment when causal treatment is possible.

2. What you need to know before you take Hidrasec

Do not use Hidrasec

  • If you are allergic to racecadotril or any of the other ingredients of Hidrasec (listed in section 6).
  • If you have ever developed a severe skin rash or skin peeling, blistering and/or mouth sores after taking racecadotril.

Warnings and precautions

Talk to your doctor or pharmacist before taking Hidrasec if:

  • There is blood or pus in your stools and if you have fever. The cause of the diarrhoea may be a bacterial infection that should be treated by your doctor,
  • You are suffering from chronic diarrhoea or diarrhoea caused by antibiotics,
  • You are suffering from kidney disease or impaired liver function,
  • You are suffering from prolonged or uncontrolled vomiting,
  • You have intolerance to lactose (see “Important information about some of the ingredients of Hidrasec”).

Occurrence of skin reactions has been reported with the use of the product. These are in most cases mild and moderate. When experiencing severe skin reactions, the treatment has to be stopped immediately

Take special care with racecadotril:

Serious skin reactions including drug reaction with eosinophilia and systemic symptoms (DRESS) have been reported in association with racecadotril treatment. Stop using racecadotril and seek medical attention immediately if you notice any of the symptoms related to these serious skin reactions described in section 4.

Other medicines and Hidrasec

Please tell your doctor if you are using, have recently used or might use any other medicines.

Especially tell your doctor if you use any of the following medicines:

  • ACE inhibitor (e.g. captopril, enalapril, lisinopril, perindopril, ramipril) used to lower the blood pressure or facilitate heart labour.

Pregnancy, breast-feeding and fertility

If you are pregnant or breast-feeding, think you may be pregnant or are planning to have a baby, ask your doctor or pharmacist for advice before taking this medicine.

Use of Hidrasec is not recommended in case of pregnancy and breast feeding.

Driving and using machines

Hidrasec has little or no effect on the ability to drive or use machinery.

Important information about some of the ingredients of Hidrasec

Hidrasec contains lactose (a type of sugar). If you have been told by your doctor that you have intolerance to some sugars, ask your doctor before taking Hidrasec.

This medicine does not contain gluten.

3. How to take Hidrasec

Always take this medicine exactly as your doctor or pharmacist has told you. Check with your doctor or pharmacist if you are not sure.

Hidrasec is presented in the form of capsules.

The usual dose is one capsule three times daily to be swallowed with a glass of water.

Hidrasec should be taken preferably before the main meals, but to begin with your treatment, you may take one capsule of Hidrasec at any time during the day.

Your doctor will tell you how long your treatment with Hidrasec will last. It should be continued until two normal stools are produced, not exceeding 7 days.

To compensate for the loss of liquid due to your diarrhoea, this medicinal product should be used together with an adequate replacement of fluid and salts (electrolytes). The best replacement of fluid and salts is achieved with a so-called oral rehydration solution (please ask your doctor or pharmacist if you are not sure).

No dosage adjustment is required in the elderly.

Children

Other forms of Hidrasec are available for use in children and infants.

If you take more Hidrasec than you should, please contact your doctor or pharmacist immediately.

If you forget to take Hidrasec

Do not take a double dose to make up for a forgotten dose. Simply continue with the treatment.

4. Possible side effects

Like all medicines, Hidrasec can cause side effects, although not everybody gets them.

You should stop taking Hidrasec and see your doctor immediately if you experience symptoms of angioedema, such as:

  • swollen face, tongue or pharynx
  • difficulty to swallow
  • hives and difficulties to breath

Stop using racecadotril and seek medical attention immediately if you notice any of the following symptoms:

  • Widespread rash, high body temperature and enlarged lymph nodes (DRESS syndrome)
  • Breathing difficulty, swelling, lightheadedness, fast heartbeat, sweating and a feeling of loss of consciousness which are symptoms of a sudden, severe allergic reaction.

The following side effects have been reported:

Common (may affect up to 1 in 10 people): headache.

Uncommon (may affect up 1 in 100 people): rash and erythema (skin redness).

Not known (frequency cannot be estimated from the available data): erythema multiforme (pinklesions in the extremities and inside the mouth), inflammation of the tongue, inflammation of the face, inflammation of the lip, inflammation of the eyelid,), urticaria, erythema nodosum (inflammation in the form of a nodule under the skin), rash papular (eruption in the skin with small lesions, hard and nodulated), prurigo (itching skin lesions), pruritus (generalised itching), toxic skin eruption.

Reporting of side effects

If you get any side effects, talk to your doctor or pharmacist . This includes any possible side effects not listed in this leaflet. You can also report side effects directly via the Yellow Card Scheme.

Website: www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App Store

By reporting side effects you can help provide more information on the safety of this medicine.

5. How to store Hidrasec

Keep this medicine out of the sight and reach of children.

Do not use Hidrasec after the expiry date which is stated on the outer packaging after EXP

The expiry date refers to the last day of the month.

This medicinal product does not require any special storage conditions.

Do not throw away any medicine via wastewater or household waste. Ask your pharmacist how to throw away medicines you no longer use. These measures will help protect the environment.

6. Contents of the pack and other information

What Hidrasec contains

The active substance is racecadotril. Each capsule contains 100 mg of racecadotril.

The other ingredients are lactose monohydrate, pregelatinised maize starch, magnesium stearate and colloidal anhydrous silica. The capsule contains gelatin, yellow iron oxide (E172) and titanium dioxide (E171).

What Hidrasec looks like and contents of the pack

Hidrasec is in the form of ivory-coloured hard capsules.

Each pack contains 6, 10, 20, 100 or 500 hard capsules. 100 or 500 pack sizes are for hospital use only

Not all pack sizes may be marketed.

Marketing Authorisation Holder and Manufacturer

Marketing Authorisation Holder

Bioprojet Europe Ltd.

101 Furry Park road

Killester

EI-DUBLIN 5

IRELAND

Manufacturer

SOPHARTEX,

21 rue du Pressoir,

28500 Vernouillet

(France)

This leaflet was last revised in March 2024

About this document

Source: MHRA - Medicines and Healthcare products Regulatory Agency (products.mhra.gov.uk) · Marketing authorisation: PL 39418/0003

Last revision stated in the text: March 2024 · MHRA data as of 13 October 2026

Found a mistake? Tell us on the contact page.

The information on this site does not replace the advice of a doctor or pharmacist.

Facts about Hidrasec 100 mg hard capsules

Active substance Racecadotril
Strength 100 mg
Pharmaceutical form Oral capsule
Ivory coloured capsules. Size 2, containing a white powder with a sulphur odour.
How is it taken Oral
Excipients Lactose monohydrate, Pregelatinised starch (maize), Magnesium stearate, Silica Colloidal anhydrous, Yellow iron oxide (E172), Titanium dioxide (E171), Gelatin
Is it available? No, all its packs are listed as discontinued (NHS Dictionary of Medicines and Devices – not a record of current supplies)
Shelf life 3 years.
Storage This medicinal product does not require any special storage conditions.
Drug group (ATC) Other antidiarrhoeals
  1. A Alimentary tract and metabolism drugs
    1. A07 Antidiarrheals, intestinal antiinflammatory/antiinfective agents
      1. A07X Other antidiarrheals
        1. A07XA Other antidiarrheals
          1. A07XA04 racecadotril
Marketing authorisation PL 39418/0003 (first authorised 3 January 2016)
Marketing authorisation holder Bioprojet Europe Ltd.
Codes BNF 01040300

Sources: the MHRA product information (products.mhra.gov.uk) and the NHS Dictionary of Medicines and Devices (dm+d), release 10.1.0 of 12 October 2026, NHS Business Services Authority. Contains public sector information licensed under the Open Government Licence v3.0.