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Dioctyl 100 mg capsules – Summary of Product Characteristics (SmPC) for healthcare professionals

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

Medicine status: Pharmacy medicine (P) Details

Medicine strength:
100 mg
Contains active substance:

Summary of Product Characteristics (SmPC) - Dioctyl 100 mg capsules

1 NAME OF THE MEDICINAL PRODUCT

Dioctyl 100 mg capsules

2 QUALITATIVE AND QUANTITATIVE COMPOSITION

Docusate sodium 100 mg.

Excipients with known effect: sorbitol and sunset yellow (E110)

For the full list of excipients, see section 6.1.

3 PHARMACEUTICAL FORM

Capsule, soft.

A two colour (opaque white and opaque yellow) soft, oval, gelatin capsule with a clear, colourless liquid fill.

4 CLINICAL PARTICULARS

4.1 Therapeutic indications

  1. a)

    To prevent and treat chronic constipation.

    (i) to soften hard, dry stools in order to ease defaecation and reduce straining at stool; and

    (ii) in the presence of haemorrhoids and anal fissure, to prevent hard, dry stools and reduce straining.

  2. b) As an adjunct in abdominal radiological procedures.

4.2 Posology and method of administration

Posology

Adults:

Up to 500 mg should be taken daily in divided doses. Treatment should be commenced with large doses, which should be decreased as the condition of the patient improves.

For use with barium meals:

400 mg to be taken with the meal.

Elderly:

As for adults.

Paediatric population:

The safety and efficacy of Dioctyl in children aged 0 to 11 years have not yet been established. No data are available.

Method of administration

For oral use.

4.3 Contraindications

Hypersensitivity to the active substance or to any of the excipients listed in section 6.1.

Dioctyl should not be administered when abdominal pain, nausea, vomiting or intestinal obstruction is present.

4.4 Special warnings and precautions for use

Organic disorders should be excluded prior to the administration of any laxative.

The treatment of constipation with any medicinal product is only adjuvant to a healthy lifestyle and diet, for example:

  • increased intake of fluids and dietary fibre.
  • advice on appropriate physical activity

If laxatives are needed every day, or if there is persistent abdominal pain, consult your doctor.

Excipients

Fructose intolerance:

This product contains sorbitol. Patients with rare hereditary problems of fructose intolerance should not take this medicine.

Excipients which may cause allergic reactions:

This product contains sunset yellow (E110) which may cause allergic reactions.

4.5 Interaction with other medicinal products and other forms of interaction

Dioctyl should not be taken concurrently with mineral oil.

4.6 Fertility, pregnancy and lactation

Pregnancy

There are no adequate data from the use of the drug in pregnant women. Animal studies are insufficient with respect to effects on pregnancy and embryonic foetal development. The potential risk for humans is unknown. During wide use, no adverse consequences have been reported.

Use in pregnancy only if the benefits outweigh the risks.

Breast-feeding

Docusate sodium is excreted in breast milk and should therefore, be used with caution in lactating mothers.

4.7 Effects on ability to drive and use machines

None known.

4.8 Undesirable effects

Frequencies are defined as follows: Very common (≥1/10); common (≥1/100 to <1/10); uncommon (≥1/1,000 to <1/100); rare (≥1/10,000 to <1/1,000); very rare (<1/10,000), not known (cannot be estimated from the available data).

Gastrointestinal disorders:

Rare: diarrhoea, nausea, abdominal cramps

Skin and subcutaneous tissue disorders:

Not known: skin rash and pruritus.

Reporting of suspected adverse reactions

Reporting suspected adverse reactions after authorisation of the medicinal product is important. It allows continued monitoring of the benefit/risk balance of the medicinal product. Healthcare professionals are asked to report any suspected adverse reactions via the Yellow Card Scheme at: www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App Store.

4.9 Overdose

Management

In rare cases of overdose, excessive loss of water and electrolytes should be treated by encouraging the patient to drink plenty of fluid. Electrolyte loss should be replenished where appropriate.

5 PHARMACOLOGICAL PROPERTIES

5.1 Pharmacodynamic properties

Pharmacotherapeutic group: softeners, emollients, ATC code: A06AA02

Mechanism of action

Docusate sodium is an anionic wetting agent, which acts as a faecal softener by lowering the surface tension and allowing penetration of accumulated hard dry faeces by water and salts.

Docusate Sodium also possesses stimulant activity.

5.2 Pharmacokinetic properties

Distribution

Docusate sodium exerts its clinical effect in the gastrointestinal tract.

Elimination

There is some evidence that docusate sodium is absorbed and is excreted in the bile.

There is also evidence that docusate sodium is capable of enhancing absorption of certain compounds administered concomitantly.

5.3 Preclinical safety data

None stated.

6 PHARMACEUTICAL PARTICULARS

6.1 List of excipients

Macrogol 400

Propylene glycol

Gelatin 175 bloom

Purified water

Sorbitol special

Glycerol

Titanium dioxide (E171)

Quinoline yellow (E104)

Sunset yellow (E110)

Lecithin

Isopropyl alcohol

Medium-chain triglycerides

6.2 Incompatibilities

None

6.3 Shelf life

PVC/PVdC blister packs with aluminium foil: 18 months Polyethylene / polypropylene containers: 2 years

6.4 Special precautions for storage

Do not store above 25ºC. Store in the original package in order to protect from moisture

6.5 Nature and contents of container

PVC/PVdC blister packs with aluminium foil containing 10, 20, 30, 40 or 50 capsules.

Polyethylene / polypropylene containers, holding 30 or 100 capsules.

Not all pack sizes may be marketed.

6.6 Special precautions for disposal

No special requirements for disposal.

7 MARKETING AUTHORISATION HOLDER

Teofarma S.r.l.

Via Fratelli Cervi 8

Valle Salimbene

PV

27010

Italy

8 MARKETING AUTHORISATION NUMBER(S)

PL 16250/0014

9 DATE OF FIRST AUTHORISATION/RENEWAL OF THE

AUTHORISATION

17/06/2010

10 DATE OF REVISION OF THE TEXT

21/08/2023

About this document

Source: MHRA - Medicines and Healthcare products Regulatory Agency (products.mhra.gov.uk) · Marketing authorisation: PL 16250/0014

Last revision stated in the text: 21 August 2023 · MHRA data as of 13 October 2026

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

Facts about Dioctyl 100 mg capsules

Prescription needed? No, but it is sold only in pharmacies (P)
Active substance Docusate
Strength 100 mg
Pharmaceutical form Oral capsule
A two colour (opaque white and opaque yellow) soft, oval, gelatin capsule with a clear, colourless liquid fill.
How is it taken Oral
Excipients Macrogol 400, Propylene glycol, Gelatin 175 bloom, Purified water, Sorbitol special, Glycerol, Titanium dioxide (E171), Quinoline yellow (E104), Sunset yellow (E110), Lecithin, Isopropyl alcohol, Medium-chain triglycerides
Pack sizes 30 capsule, 100 capsule
Is it available? Listed as available (NHS Dictionary of Medicines and Devices – not a record of current supplies)
Shelf life PVC/PVdC blister packs with aluminium foil: 18 months Polyethylene / polypropylene containers: 2 years
Storage Do not store above 25°C. Store in the original package in order to protect from moisture
Drug group (ATC) Softeners, emollients
  1. A Alimentary tract and metabolism drugs
    1. A06 Drugs for constipation
      1. A06A Drugs for constipation
        1. A06AA Softeners, emollients
          1. A06AA02 docusate sodium
Marketing authorisation PL 16250/0014 (first authorised 17 June 2010)
Marketing authorisation holder Teofarma S.r.l.
Codes GTIN 5015366000262, 5015366000279 · BNF 01060200

Sources: the MHRA product information (products.mhra.gov.uk) and the NHS Dictionary of Medicines and Devices (dm+d), release 10.2.0 of 19 October 2026, NHS Business Services Authority. Contains public sector information licensed under the Open Government Licence v3.0.