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Chefaro Ireland Ltd

Chefaro Ireland, 1st Floor, 32 Vauxhall Bridge Road, London, SW1V2SA, UK
Telephone: +44 (0)203 598 9601
E-mail: omegaroi@professionalinformation.co.uk
WWW: www.omegapharma.ie
Medical Information Direct Line: +44 (0)1748 827 299

Summary of Product Characteristics last updated on medicines.ie: 30/08/2017
SPC Hedex 500mg Film-coated tablets

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Hedex 500 mg Film-coated Tablets

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Each tablet contains paracetamol 500 mg. For a full list of excipients, see section 6.1.

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Film-coated tablet

White film coated capsule-shaped tablet with flat edges and a break line on one side. The break line is only to facilitate breaking for ease of swallowing and do not divide into equal doses.

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4.1 Therapeutic indications

Hedex is a mild analgesic and antipyretic. The tablets are recommended for use in the short term management of headaches, including migraine and tension headaches, backache, rheumatic and muscle pain, period pains, nerve pains, toothache and for relieving of fever, aches and pains of colds and flu.

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4.2 Posology and method of administration

Oral administration only.

Adults (including the elderly):

2 tablets repeated if necessary 3-4 times a day to a maximum of 8 tablets in any 24 hour period.

Paediatric population

Children 6-12 years:

The usual dose is 1 tablet repeated if necessary 3-4 times a day to maximum of 4 tablets in any 24 hour period. Hedex tablets are not suitable for children under 6 years of age.

These doses should not be repeated more frequently than every 4 hours and not more than 4 doses should be given in any 24 hour period.

Maximum duration of continued use without medical advice: 3 days.

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4.3 Contraindications

Hypersensitivity to the active substance or to any of the excipients listed in section 6.1. Use in children under 6 years of age.

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4.4 Special warnings and precautions for use

Hepatic impairment

Underlying liver disease increases the risk of paracetamol-related liver damage. Patients with renal or hepatic impairment should seek medical advice prior to treatment with paracetamol. The hazard of overdose is greater in those with non-cirrhotic alcoholic liver disease.

Do not exceed the stated dose.

Patients should be advised not to take other paracetamol-containing products concurrently. If symptoms persist, consult your doctor.

Keep out of the sight and reach of children.

Consult your doctor if you are taking warfarin or have been diagnosed with liver or kidney disease.

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4.5 Interaction with other medicinal products and other forms of interaction

The speed of absorption of paracetamol may be increased by metoclopramide or domperidone. The rate of paracetamol absorption may be reduced by colestyramine. Colestyramine should not be administered within one hour of taking paracetamol.

The anticoagulant effect of warfarin and other coumarins may be enhanced by prolonged regular daily use of paracetamol with increased risk of bleeding; occasional doses have no significant effect.

In case of concomitant treatment with probenecid, the dose of paracetemol should be reduced because the probenecid reduces the clearance of paracetemol by 50% because it prevents the conjugation of paracetamol with glucuronic acid.

There is limited evidence to suggesting that paracetamol may affect cholaramphenicol pharmacokinetics but its validity has been criticised and evidence of a clinically relevant interaction appears to lack. Although no routine monitoring needed, it is important to bear in mind this potential interaction when these two medications are concomitantly administered, especially in malnourished patients.

4.6 Fertility, pregnancy and lactation


Epidemiological studies in human pregnancy have shown no ill effects due to paracetamol used in the recommended dosage, but patients should follow the advice of their doctor regarding its use.


Paracetamol is excreted in breast milk but not in a clinically significant amount. Available published data do not contraindicate breast feeding.


There are no available data on the effect of paracetamol on fertility.

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4.7 Effects on ability to drive and use machines

Hedex has no or negligible influence on the ability to drive and use machines.

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4.8 Undesirable effects

Adverse events associated with paracetamol from historical clinical trial data are both infrequent and from small patient exposure. Accordingly, events reported from extensive post-marketing experience at therapeutic/labeled dose and considered attributable are tabulated below by System Organ Class and frequency. Frequencies are defined as: very common (>1/10), common (>1/100, <1/10), uncommon (>1/1000, <1/100), rare (>1/10,000, <1/1000) and very rare (<1/10,000), not known (cannot be estimated from the available data).

Immune system disorders

Allergies (not including angioedema)


Skin and subcutaneous tissue disorders

Cutaneous hypersensitivity reactions, including skin rashes, pruritus, sweating, purpura, urticaria and angioedema.

Very rare

Toxic epidermal necrolysis (TEN), drug- induced dermatitis, Stevens Johnson syndrome. Anaphylaxis.

Very rare

Haematological system disorders


Very rare

Respiratory system disorders

Aggravation of bronchospasm has been reported in asthmatic patients known to be sensitive to aspirin and other non-steroidal anti- inflammatory drugs

Very rare

Hepatobiliary disorders

Liver dysfunction

Very rare

Renal and urinary disorders

Sterile pyuria (cloudy urine)

Very rare

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 HPRA Pharmacovigilance Earlsfort Terrace, IRL - Dublin 2; Tel: +353 1 6764971; Fax: +353 1 6762517. Website: www.hpra.ie; e-mail: medsafety@hpra.ie.

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4.9 Overdose

Symptoms of paracetamol overdose in the first 24 hours are pallor, nausea, vomiting, anorexia and abdominal pain. Liver damage may become apparent 12 to 48 hours after ingestion. Abnormalities of glucose metabolism and metabolic acidosis may occur. In sever poisoning, hepatic failure may progress to encephalopathy, coma and death. Acute renal failure with acute tubular necrosis may develop even in the absence of severe liver damage. Cardiac arrhythmias and pancreatitis have been reported. Liver damage is possible in adults who have taken 10g or more of paracetamol. It is considered that excess quantities of a toxic metabolite (usually adequately detoxified by glutathione when normal doses of paracetamol are ingested), become irreversibly bound to liver tissue.

Immediate treatment is essential in the management of paracetamol overdose. Despite a lack of significant early symptoms, patients should be referred to hospital urgently for immediate medical attention and any patient who has ingested around 7.5g or more of paracetamol in the preceding 4 hours should undergo gastric lavage. Administration of oral methionine or intravenous N-acetylcysteine which may have a beneficial effect up to at least 48 hours after the overdose, may be required.

General supportive measures must be available. Risk factors:

If the patient

a) is on long term treatment with carbamazepine, phenobarbitone, phenytoin, primidone, rifampicin, St. John's Wort or other drugs that induce liver enzymes


b) regularly consumes ethanol in excess of recommended amounts


c) is likely to be glutathione deplete e.g. eating disorders, cystic fibrosis, HIV infection, starvation, cachexia

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5.1 Pharmacodynamic properties

ATC Code: N02BE01

Paracetamol is an analgesic and antipyretic. Its mechanism of action is believed to include inhibition of prostaglandin synthesis, primarily within the central nervous system.

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5.2 Pharmacokinetic properties

Paracetamol is rapidly and almost completely absorbed from the gastrointestinal tract. Concentration in plasma reaches a peak in 30-60 minutes.

Plasma half-life is 1-4 hours.

Paracetamol is relatively uniformly distributed throughout most body fluids. Plasma protein binding is variable.

Excretion is almost exclusively renal, in the form of conjugated metabolites.

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5.3 Preclinical safety data

There are no pre-clinical data of relevance to the prescriber which are additional to that already included in other sections of the SPC.

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6.1 List of excipient(s)

· Maize starch

· Potassium sorbate

· Talc

· Stearic acid

· Povidone

· Pre-gelatinised starch

· Hypromellose

· Triacetin

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6.2 Incompatibilities

Not applicable.

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6.3 Shelf life

4 years.

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6.4 Special precautions for storage

This medicinal product does not require any special storage conditions.

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6.5 Nature and contents of container

Opaque PVC/aluminium foil blister strips packed into cardboard boxes containing 12, 16, 24 or 40 tablets.

Not all pack sizes may be marketed.

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6.6 Special precautions for disposal and other handling

No special requirements.

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Chefaro Ireland DAC,

Treasury Building

Lower Grand Canal Street

Dublin 2,


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PA 1186/009/001

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Date of first authorisation: 20 August 1992

Date of last renewal: 20 August 2007

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August 2017

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