We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we'll assume that you are happy to receive all cookies on the medicines.ie website. Find out more

Reckitt Benckiser Ireland Limited

7 Riverwalk, Citywest Business Campus, Dublin 24, Ireland
Telephone: +353 1 468 9200
Fax: +353 1 468 9299

Summary of Product Characteristics last updated on medicines.ie: 05/02/2015
SPC Disprin

Go to top of the page

Disprin Original 300mg Dispersible Tablets.

Go to top of the page

Each tablet contains 300 mg of acetylsalicylic acid.

For a full list of excipients, see section 6.1.

Go to top of the page

Dispersible tablets (tablets).

White, flat, circular, bevel-edged dispersible tablets with the ' Sword' motif and the word ' Disprin' engraved on one face, plain on reverse.

Go to top of the page

Go to top of the page
4.1 Therapeutic indications

For the relief of mild to moderate pain, such as is associated with headache, toothache, neuralgia and period pains.

Symptomatic relief in upper respiratory tract infections (such as feverishness, cold and flu, sore throat).

Reduction of inflammation, such as in lumbago.

Go to top of the page
4.2 Posology and method of administration

Oral administration after dissolution in water.

Adults and children aged 16 and over: One to two tablets every 4 hours. Do not exceed 12 tablets in 24 hours.

Do not give to children and adolescents aged under 16 years, except on medical advice, where the benefit outweighs the risk.

Elderly: Non-steroidal anti-inflammatory drugs should be used with particular caution in elderly patients who are more prone to adverse events. The lowest dose compatible with adequate safe clinical control should be employed. (See also Section 4.4).

Go to top of the page
4.3 Contraindications

Severe heart failure.

History of gastrointestinal bleeding or perforation related to previous NSAIDs therapy. Active, or history of recurrent peptic ulcer/haemorrhage (two or more distinct episodes of proven ulceration or bleeding

Should not be given to patients hypersensitive (e.g. bronchospasm, rhinitis, urticaria) to aspirin or to other non-steroidal anti-inflammatory drugs. Do not use in patients suffering from active peptic ulceration or a coagulation deficiency disorder.

In patients under the age of 16 years owing to an association with Reye’s Syndrome, unless specifically indicated .

Go to top of the page
4.4 Special warnings and precautions for use

The use with concomitant NSAIDs including cyclooxygenase-2 selective inhibitors should be avoided.

Caution (discussion with doctor or pharmacist) is required prior to starting treatment in patients with a history of hypertension and/or heart failure as fluid retention and oedema have been reported in association with NSAID therapy.

Undesirable effects may be minimised by using the minimum effective dose for the shortest duration necessary to control symptoms (See section 4.2, and GI and cardiovascular risks below).

Gastrointestinal bleeding, ulceration and perforation: GI bleeding, ulceration or perforation, which can be fatal, has been reported with all NSAIDs at any time during treatment, with or without any warning symptoms or a previous history of serious GI events.

The risk of GI bleeding, ulceration or perforation is higher with increasing NSAID doses, in patients with a history of ulcer, particularly if complicated with haemorrhage or perforation (see section 4.3), and in the elderly. These patients should commence treatment on the lowest dose available. Combination therapy with protective agents (e.g. misoprostol or proton pump inhibitors) should be considered for these patients, and also for patients requiring concomitant low dose aspirin, or other drugs likely to increase gastrointestinal risk (see below and 4.5).

Patients with a history of GI toxicity, particularly when elderly, should report any unusual abdominal symptoms (especially GI bleeding) particularly in the initial stages of treatment.

Caution should be advised in patients receiving concomitant medications which could increase the risk of ulceration or bleeding, such as oral corticosteroids, anticoagulants such as warfarin, selective serotonin reuptake inhibitors or anti-platelet agents such as aspirin (see section 4.5).

When GI bleeding or ulceration occurs in patients receiving Disprin Original, the treatment should be withdrawn.

NSAIDs should be given with care to patients with a history of gastrointestinal disease (ulcerative colitis, Crohn's Disease) as their condition may be exacerbated (see section 4.8 – undesirable effects).

Cardiovascular and cerebrovascular effects: Clinical trial and epidemiological data suggest that use of some NSAIDs (particularly at high doses and in long term treatment) may be associated with a small increased risk of arterial thrombotic events (for example myocardial infarction or stroke). There are insufficient data to exclude such a risk for aspirin when given at a daily dose of ≤3600mg.

Serious skin reactions, some of them fatal, including exfoliative dermatitis, Stevens-Johnson syndrome, and toxic epidermal necrolysis, have been reported very rarely in association with the use of NSAIDs (see 4.8). Patients appear to be at highest risk of these reactions early in the course of therapy, the onset of the reaction occurring in the majority of cases within the first month of treatment. Disprin Original should be discontinued at the first appearance of skin rash, mucosal lesions, or any other sign of hypersensitivity.

There is some evidence that drugs which inhibit cyclo-oxygenase/prostaglandin synthesis may cause impairment of female fertility by an effect on ovulation. This is reversible on withdrawal of treatment.

Elderly: The elderly have an increased frequency of adverse reactions to NSAIDs especially gastrointestinal bleeding and perforation which may be fatal (see section 4.2).

Elderly patients are particularly susceptible to the adverse effects of non-steroidal anti-inflammatory drugs. Unsupervised prolonged use of non-steroidal anti-inflammatory drugs in the elderly is not recommended.

This product should be taken only when necessary.

Prolonged use except under medical supervision can be harmful.

Undesirable effects may be reduced by using the minimum effective dose for the shortest possible duration.

The doctor should be consulted if there is no improvement in 24 hours.

If the patient is on any medication consult the doctor or pharmacist before using.

If the patient suffers from asthma, has renal or hepatic impairment, or a history of peptic ulceration or inflammatory bowel disease, then a doctor should be consulted before taking the product.

There is possible association between aspirin and Reye's syndrome when given to children. Reye's syndrome is a very rare disease, which affects the brain and liver, and can be fatal. For this reason aspirin should not be given to children and adolescents aged under 16 years unless specifically indicated.

Go to top of the page
4.5 Interaction with other medicinal products and other forms of interaction

Not to be taken with any other aspirin containing medicines.

Anti-coagulants: NSAIDs may enhance the effects of anticoagulants, such as warfarin (see section 4.4).

It is considered unsafe to take non-steroidal anti-inflammatory drugs in combination with warfarin or heparin unless under direct medical supervision.

Anti-platelet agents and selective serotonin reuptake inhibitors (SSRIs): increased risk of gastrointestinal bleeding (see section4.4).

Aspirin may enhance the effects of anticoagulants, inhibit the effects of uricosurics and reduce the excretion of methotrexate (increasing its toxicity).

Diuretics: Reduced diuretic effect. Diuretics can increase the risk of nephrotoxicity of non-steroidal anti-inflammatory drugs.

Other non-steroidals: Avoid concomitant use of two or more non-steroidal anti-inflammatory drugs.

Corticosteroids: Increased risk of gastrointestinal bleeding.

Antihypertensives: Reduced antihypertensive effect.

Oral hypoglycaemic agents: Inhibition of metabolism of sulfonylurea drugs, prolonged half-life and increased risk of hypoglycaemia.

Cardiac glycosides: NSAIDs may exacerbate cardiac failure, reduce GFR and increase plasma cardiac glycoside levels.

Lithium: Decreased elimination of lithium.

Methotrexate: Decreased elimination of methotrexate.

Cyclosporin: Increased risk of nephrotoxicity with NSAIDs.

Aminoglycosides: Reduction in renal function in susceptible individuals, decreased elimination of aminoglycoside and increased plasma concentrations.

Probenecid: Reduction in metabolism and elimination of NSAID and metabolites.

Sodium valproate: Aspirin may enhance its effects.

Experimental data suggest that ibuprofen may inhibit the effect of low dose aspirin on platelet aggregation when they are dosed concomitantly. However, the limitations of these data and the uncertainties regarding extrapolation of ex vivo data to the clinical situation imply that no firm conclusions can be made for regular ibuprofen use, and no clinically relevant effect is considered to be likely for occasional ibuprofen use (see section 5.1).

4.6 Pregnancy and lactation

As with all other drugs, aspirin should be taken under pregnancy only after strict risk-benefit evaluation.

In the last three months of pregnancy, the prolonged administration of aspirin (>300 mg/day) can lead to delayed onset and increased duration of labour, premature closure of the ductus arteriosus and inhibition of uterine contractions. An increased haemorrhagic tendency has been observed in both the mother and child. Administration of aspirin in high doses shortly before birth can lead to intracranial haemorrhages, particularly in premature babies.

Salicylates pass into breast milk in small quantities. As no adverse effects on the infant have been observed after occasional use, interruption of breast feeding is usually unnecessary. However, if high doses (>300 mg/day) are used regularly, breast feeding should be discontinued as toxicity to the new-born cannot be ruled out.

Go to top of the page
4.7 Effects on ability to drive and use machines

Not known.

Go to top of the page
4.8 Undesirable effects

Adverse effects occurring with aspirin include gastro-intestinal disturbance, peptic ulceration and gastro-intestinal bleeding. Other less frequent adverse effects to aspirin include headache, skin rash, oedema, blurred vision, hypersensitivity, thrombocytopenia, abnormal liver function and impaired renal function.

Gastrointestinal: The most commonly observed adverse events are gastrointestinal in nature. Peptic ulcers, perforation or GI bleeding, sometimes fatal, particularly in the elderly, may occur (see section 4.4). Nausea, vomiting, diarrhoea, flatulence, constipation, dyspepsia, abdominal pain, melaena, haematemesis, ulcerative stomatitis, exacerbation of colitis and Crohn's disease (see section 4.4 –Special warnings and precautions for use) have been reported following administration. Less frequently, gastritis has been observed. Gastrointestinal blood losses leading to anaemia have been reported with non-steroidal anti-inflammatory drugs such as aspirin.

Cardiovascular: Oedema, hypertension and cardiac failure have been reported in association with NSAID treatment. Cardiovascular and cerebrovascular effects: Clinical trial and epidemiological data suggest that use of some NSAIDs (particularly at high doses and in long term treatment) may be associated with a small increased risk of arterial thrombotic events (for example myocardial infarction or stroke) (see section 4.4).

Skin reactions: Bullous reactions including Stevens-Johnson syndrome and toxic epidermal necrolysis (very rare).

Non-steroidal anti-inflammatory drugs, including aspirin, may precipitate bronchospasm, rhinitis or urticaria or induce attacks of asthma in susceptible subjects.

Isolated cases of liver (increased transaminases) and kidney dysfunction and severe skin reactions have been described.

Go to top of the page
4.9 Overdose

Acute salicylate poisoning is usually manifested as hypokalaemia with metabolic acidosis and respiratory alkalosis. Nausea, vomiting, tinnitus, hyperpnoea, hyperpyrexia, confusion, disorientation, dizziness, coma and/or convulsions are common. Gastrointestinal haemorrhage is frequent. However, alkalaemia or acidaemia, alkaluria or aciduria, hyperglycaemia or hypoglycaemia, and water and electrolyte imbalances, can occur.

Uncommon features include haematemesis, thrombocytopenia, increased INR/PTR, intravascular coagulation, renal failure and non-cardiac pulmonary oedema.

Chronic salicylate intoxication is commonly associated with daily headaches, nausea, tinnitus, dizziness, lethargy and confusion; coma may occur. The symptoms can mimic those resulting from illness for which the drug was given. Irritability, lethargy, delayed unresponsiveness and encephalopathy may be seen one to three days following withdrawal of aspirin. At the same time, the concentration of salicylate in the CNS may be high, with non-toxic values in the serum.

Salicylate poisoning is usually associated with plasma concentrations >350mg/L (2.5mmol/L). Most adult deaths occur in patients whose concentrations exceed 700mg/L (5.1mmol/L). Single doses less than 100mg/kg are unlikely to cause serious poisoning.

Management: Give activated charcoal if an adult present within one hour of ingestion of more than 250mg/kg. The plasma salicylate concentration should be measured, although the severity of poisoning cannot be determined from this alone and the clinical and biochemical features must be taken into account.

Elimination is increased by urinary alkalisation, which is achieved by the administration of 1.26% sodium bicarbonate. The urinary pH should be monitored. Correct metabolic acidosis with intravenous 8.4% sodium bicarbonate (first check serum potassium). Forced diuresis should not be used since it does not enhance salicylic excretion and may cause pulmonary oedema.

Haemodialysis is the treatment of choice for severe poisioning and should be considered in patients with plasma salicylate concentrations >700mg/L (5.1 mmol/L), or lower concentrations associated with severe clinical or metabolic features. Patients under ten years or over 70 have increased risk of salicylate toxicity and may require dialysis at an earlier stage.

Go to top of the page

Go to top of the page
5.1 Pharmacodynamic properties

Aspirin inhibits the cyclo-oxygenase enzyme involved in conversion of phospholipids to prostaglandins and its effects on the body are believed to result primarily from prevention of prostaglandin production. These effects include peripheral analgesia, fever reduction, reduction in inflammation and inhibition of platelet aggregation.

Experimental data suggests that ibuprofen may inhibit the effect of low dose aspirin on platelet aggregation when they are dosed concomitantly. In one study, when a single dose of ibuprofen 400mg was taken within 8 h before or within 30 min after immediate release aspirin dosing 81mg, a decreased effect of ASA on the formation of thromboxane or platelet aggregation occurred. However, the limitations of these data and the uncertainties regarding extrapolation of ex vivo data to the clinical situation imply that no firm conclusions can be made for regular ibuprofen use, and no clinically relevant effect is considered to be likely for occasional ibuprofen use.

Go to top of the page
5.2 Pharmacokinetic properties

Aspirin is rapidly absorbed from the stomach and upper gastrointestinal tract with peak levels after around 20-30 minutes following dissolution. It is subject to first-pass metabolism with an overall bioavailability of around 70%. Metabolism is by conversion to salicylic acid and then by further conversion to other metabolites. These are excreted by the kidneys in both free and conjugated form. The plasma half-life of aspirin is around 15-20 minutes and that of salicylic acid is 2-3 hours.

Go to top of the page
5.3 Preclinical safety data

No preclinical findings of relevance have been reported.

Go to top of the page

Go to top of the page
6.1 List of excipient(s)

Calcium carbonate (E170)

Maize starch

Citric acid anhydrous

Talc (E553b)

Sodium laurilsulfate

Saccharin (E954)


Lime flavour 2

Go to top of the page
6.2 Incompatibilities

Not applicable.

Go to top of the page
6.3 Shelf life

Three years.

Go to top of the page
6.4 Special precautions for storage

Store below 25°C. Store in the original container in order to protect from light.

Go to top of the page
6.5 Nature and contents of container

Strips of aluminium foil in cartons containing 12, 24 and 48 tablets.

Not all pack sizes may be marketed.

Go to top of the page
6.6 Special precautions for disposal and other handling

No special requirements.

Go to top of the page

Reckitt Benckiser Ireland Limited

7 Riverwalk

Citywest Business Campus

Dublin 24


Go to top of the page

PA 979/6/1.

Go to top of the page

Date of first authorisation: 1st April, 1978

Date of last renewal: 1st April, 2008

Go to top of the page

November 2013

Link to this document from your website:

Document Links

  Link to this page
  View all medicines
from this company
Print this page
View document history
Bookmark and Share

Active Ingredients

   Acetylsalicylic acid (Aspirin)