- Approval Id
- 20740f62136810e4
- Drug Approval Emc Name
- Strigol Orange Flavour 6.86 g Paediatric Powder for oral solution
- Drug Name
- Strigol Orange Flavour 6.86 g Paediatric Powder for oral solution
- Company Name
- Strides Pharma UK Ltd
- Company Address
- Unit 4, Metro Centre, Tolpits Lane, Watford, Hertfordshire, UK
- Company Website
- //www.stridespharma.co.uk
- Company Telephone
- +44 1923 255580
- Company Medical Info Direct Line
- +44 8000 988 048
- Company Medical Info Email
- drugsafety@strides.com
- Atc Code
- A06AD65
- Legal Category
- Prescription only medicine
- Authorisation Holder
- Strides Pharma UK Ltd.
Unit 4 The Metro Centre,
Dwight Road, Watford, WD18 9SS
United Kingdom.
- Authorisation Number
- PL 13606/0259
- Authorisation Date
- 17/07/2017
- Instruction Authorisation Holder
- Strides Pharma UK Ltd.
Unit 4 The Metro Centre,
Dwight Road, Watford, WD18 9SS
United Kingdom.
- Instruction Authorisation Number
- PL 13606/0259
- Instruction Authorisation Date
- 17/07/2017
- Instruction Composition
- Each sachet of Macrogol 6.86 g Paediatric powder for oral solution contains the following active ingredients:
| | |
| --- | --- |
| Macrogol 3350 | 6.563 g |
| Sodium Chloride | 175.4 mg |
| Sodium Bicarbonate | 89.3 mg |
| Potassium Chloride | 23.30 mg |
The content of electrolyte ions per sachet when made up to 62.5 ml of solution is as follows:
| | |
| --- | --- |
| Sodium | 65 mmol/l |
| Chloride | 53 mmol/l |
| Potassium | 5.4 mmol/l |
| Bicarbonate | 17 mmol/l |
\*\*Excipient(s) with known effect\*\*
For the full list of excipients, see section 6.1
- Instruction Dosage Form
- Powder for oral solution.
A white crystalline powder in single-dose sachets with orange odour.
- Instruction Clinical Particulars
- 4.1 Therapeutic indications
For the treatment of chronic constipation in children 2 to 11 years of age.
For the treatment of faecal impaction in children from the age of five years, defined as refractory constipation with faecal loading of the rectum and/or colon.
For the prevention of re-impaction after successful disimpaction in children 2 to 11 years of age.4.2 Posology and method of administration
\*\*Posology\*\*
\*\*Chronic constipation\*\*
The usual starting dose is 1 sachet daily for children aged 2 to 6 years, and 2 sachets daily for children aged 7 – 11 years. The dose should be adjusted up or down as required to produce regular soft stools. If the dose needs increasing this is best done every second day. The maximum dose needed does not normally exceed 4 sachets a day.
Treatment of children with chronic constipation needs to be or a prolonged period (at least 6 – 12 months). However, safety and efficacy of Compound Macrogol Paediatric has only been proved for a period of up to three months. Treatment should be stopped gradually and resumed if constipation recurs.
\*\*Faecal impaction\*\*
A course of treatment for faecal impaction with Compound Macrogol Paediatric is for up to 7 days as follows:
\*\*Daily dosage regimen:\*\*
| | | | | | | | |
| --- | --- | --- | --- | --- | --- | --- | --- |
| \*\*Number of Compound Macrogol Paediatric sachets\*\* | | | | | | | |
| \*\*Age (years)\*\* | \*\*Day 1\*\* | \*\*Day 2\*\* | \*\*Day 3\*\* | \*\*Day 4\*\* | \*\*Day 5\*\* | \*\*Day 6\*\* | \*\*Day 7\*\* |
| \*\*5 - 11\*\* | \*\*4\*\* | \*\*6\*\* | \*\*8\*\* | \*\*10\*\* | \*\*12\*\* | \*\*12\*\* | \*\*12\*\* |
The daily number of sachets should be taken in divided doses, all consumed within a 12 hour period.
The above dosage regimen should be stopped once disimpaction has occurred. An indicator of disimpaction is the passage of a large volume of stools. After disimpaction it is recommended that the child follows an appropriate bowel management program to prevent reimpaction (dosing for prevention of re-impaction should be as for patients with chronic constipation; see above).
Compound Macrogol Paediatric is not recommended for children below five years of age for the treatment of faecal impaction, or in children below two years of age for the treatment of chronic constipation. For patients of 12 years and older it is recommended to use Compound Macrogol Paediatric.
\*\*Patients with impaired cardiovascular function:\*\*
There are no clinical data for this group of patients. Therefore Compound Macrogol Paediatric is not recommended for treating faecal impaction in children with impaired cardiovascular function.
\*\*Patients with renal insufficiency\*\*:
There are no clinical data for this group of patients. Therefore Compound Macrogol Paediatric is not recommended for treating faecal impaction in children with impaired renal function.
\*\*Method of administration\*\*
Each sachet should be dissolved in 62.5 ml (quarter of a glass) of water. The correct number of sachets may be reconstituted in advance and kept covered and refrigerated for up to 24 hours. For example, for use in faecal impaction, 12 sachets can be made up into 750 ml of water.4.3 Contraindications
Intestinal perforation or obstruction due to structural or functional disorder of the gut wall, ileus, severe inflammatory conditions of the intestinal tract, such as Crohn's disease and ulcerative colitis and toxic megacolon.
Hypersensitivity to the active substance(s) or to any of the excipients listed in section 6.1.4.4 Special warnings and precautions for use
The fluid content of Compound Macrogol Paediatric when re-constituted with water does not replace regular fluid intake and adequate fluid intake must be maintained.
Avoid mixing PEG laxatives and starch-based thickeners in patients with dysphagia, considered at risk of aspiration.
Diagnosis of faecal impaction/faecal loading of the rectum should be confirmed by the physical or radiological examination of the abdomen and rectum.
Rarely symptoms indicating shifts of fluid/electrolytes e.g. oedema, shortness of breath, increasing fatigue, dehydration and cardiac failure have been reported in adults when using preparations containing macrogol. If this occurs Compound Macrogol Paediatric should be stopped immediately, electrolytes measured, and any abnormality should be treated appropriately.
When used in high doses to treat faecal impaction this medicinal product should be administered with caution to patients with impaired gag reflex, reflux oesophagitis or diminished levels of consciousness.
In case of diarrhoea, caution should be exercised, particularly in patients who are at higher risk for water -electrolyte balance disorders (e.g. the elderly, patients with impaired hepatic or renal function or patients taking diuretics) and electrolyte control should be considered.
Compound Macrogol Paediatric solution when reconstituted has no calorific value.
The absorption of other medicinal products could transiently be reduced due to an increase in gastro-intestinal transit rate induced by Compound Macrogol Paediatric (see section 4.5).
Compound Macrogol Paediatric contains 0.3106 mmol (12.11 mg) of potassium per sachet. This should be taken into consideration if the patient takes more than one sachet daily and has reduced kidney function, or is on a controlled potassium diet.
\*\*Compound Macrogol Paediatric contains\*\* about 93.4 mg sodium (main component of cooking/table salt) per sachet. This is equivalent to 4.6% of the recommended maximum daily dietary intake of sodium for an adult.4.5 Interaction with other medicinal products and other forms of interaction
Medicinal products in solid dose form taken within one hour of administration of large volumes of macrogol preparations (as used when treating faecal impaction) may be flushed from the gastrointestinal tract and not absorbed.
Macrogol raises the solubility of medicinal products that are soluble in alcohol and relatively insoluble in water.
There is a possibility that the absorption of other medicinal products could be transiently reduced during use with Compound Macrogol Paediatric (see section 4.4).There have been isolated reports of decreased efficacy with some concomitantly administered medicinal products, e.g. anti-epileptics.
Compound Macrogol Paediatric may result in as potential interactive effect when used with starch-based food thickeners. The polyethylene glycol (PEG) ingredient counteracts the thickening effect of starch, effectively liquefying preparations that need to remain thick for people with swallowing problems.4.6 Fertility, pregnancy and lactation
\*\*\*Pregnancy\*\*\*
There are limited amount of data from the use of Compound Macrogol Paediatric in pregnant women. Studies in animals have shown indirect reproductive toxicity (see section 5.3). Clinically, no effects during pregnancy are anticipated, since systemic exposure to macrogol 3350 is negligible.
Compound Macrogol Paediatric can be used during pregnancy.
\*\*\*Breastfeeding\*\*\*
No effects on the breastfed newborn/infant are anticipated since the systemic exposure of the breast-feeding woman to Macrogol 3350 is negligible.
Compound Macrogol Paediatric can be used during breast-feeding.
\*\*\*Fertility\*\*\*
There are no data on the effects of Compound Macrogol Paediatric on fertility in humans. There were no effects on fertility in studies in male and female rats (see section 5.3).4.7 Effects on ability to drive and use machines
Compound Macrogol Paediatric has no or negligible influence on the ability to drive and use machines.4.8 Undesirable effects
Reactions related to the gastrointestinal tract occur most commonly.
These reactions may occur as a consequence of expansion of the contents of the gastrointestinal tract, and an increase in motility due to the pharmacologic effects of Compound Macrogol Paediatric.
In the treatment of chronic constipation, diarrhoea or loose stools normally respond to a reduction in dose.
Diarrhoea, abdominal distension, anal discomfort and mild vomiting are more often observed during the treatment for faecal impaction. Vomiting may be resolved if the dose is reduced or delayed.
The frequency of the adverse reactions listed below is defined using the following convention: very common (≥1/10); common (≥1/100, <1/10); uncommon (≥1/1,000, <1/100); rare (≥1/10,000, <1/1000); and very rare (<1/10,000); not known (cannot be estimated from the available data).
| | | |
| --- | --- | --- |
| \*\*System Organ Class\*\* | \*\*Frequency\*\* | \*\*\*Adverse event\*\*\* |
| \*\*Immune system disorders\*\* | Rare | \*Anaphylaxis.\* |
| Not known | \*Angioedema, dyspnoea, rash, erythema, urticaria and pruritus.\* |
| \*\*Metabolism and nutrition disorders\*\* | Not known | \*Dehydration, electrolytes disorders (hypokalemia, hyponatraemia, hyperkalaemia)\* |
| \*\*Nervous system disorders\*\* | Not known | \*Headache.\* |
| \*\*Gastrointestinal disorders\*\* | Very common | \*Abdominal pain, borborygmi.\* |
| Common | \*Diarrhoea vomiting, nausea, anal discomfort.\* |
| Uncommon | \*Abdominal distension, flatulence.\* |
| Not known | \*Dyspepsia and peri-anal inflammation.\* |
| \*\*\*General disorders and administration site conditions\*\*\* | \*Not known\* | \*Peripheral oedema.\* |
\*\*\*\*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 Website: www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App Store.4.9 Overdose
Severe abdominal pain or distension can be treated by nasogastric aspiration. Extensive fluid loss by diarrhoea or vomiting may require correction of electrolyte disturbances.
- Instruction Pharmacology
- 5.1 Pharmacodynamic properties
Pharmacotherapeutic group: Osmotically acting laxatives
ATC code: A06A D65
Macrogol 3350 acts by virtue of its osmotic action in the gut, which induces a laxative effect. Macrogol 3350 increases the stool volume, which triggers colon motility via neuromuscular pathways. The physiological consequence is an improved propulsive colonic transportation of the softened stools and a facilitation of the defaecation. Electrolytes combined with macrogol 3350 are exchanged across the intestinal barrier (mucosa) with serum electrolytes and excreted in faecal water without net gain or loss of sodium, potassium and water.
In an open study of Compound Macrogol Paediatric in chronic constipation, weekly defaecation frequency was increased from 1.3 at baseline to 6.7, 7.2 and 7.1 at weeks 2, 4 and 12 respectively. In a study comparing Compound Macrogol Paediatric and lactulose as maintenance therapy after disimpaction, weekly stool frequency at the last visit was 9.4 (SD 4.46) in the Compound Macrogol Paediatric group compared with 5.9 (SD 4.29). In the lactulose group 7 children re-impacted (23%) compared with no children in the Compound Macrogol Paediatric group.
For the indication of faecal impaction comparative studies have not been performed with other treatments (e.g. enemas). In a non-comparative study in 63 children, Compound Macrogol (Paediatric) cleared the faecal impaction in the majority of patients within 3 - 7 days of treatment. For the 5 - 11 years age group the average total number of sachets of Compound Macrogol Paediatric required was 47.2.5.2 Pharmacokinetic properties
Macrogol 3350 is unchanged along the gut. It is virtually unabsorbed from the gastrointestinal tract. Any macrogol 3350 that is absorbed is excreted via the urine.5.3 Preclinical safety data
Preclinical studies provide evidence that macrogol 3350 has no significant systemic toxicity potential, based on conventional studies of pharmacology, repeated dose toxicity and genotoxicity.
There were no direct embryotoxic or teratogenic effects in rats even at maternally toxic levels that are a multiple of 66 x the maximum recommended dose in humans for chronic constipation and 25 x for faecal impaction. Indirect embryofetal effects, including reduction in fetal and placental weights, reduced fetal viability, increased limb and paw hyperflexion and abortions, were noted in the rabbit at a maternally toxic dose that was 3.3 x the maximum recommended dose in humans for treatment of chronic constipation and 1.3 x for faecal impaction. Rabbits are a sensitive animal test species to the effects of GI-acting substances and the studies were conducted under exaggerated conditions with high dose volumes administered, which are not clinically relevant. The findings may have been a consequence of an indirect effect of Macrogol related to poor maternal condition as the result of an exaggerated pharmacodynamic response in the rabbit. There was no indication of a teratogenic effect.
There are long-term animal toxicity and carcinogenicity studies involving macrogol 3350. Results from these and other toxicity studies using high levels of orally administered high molecular weight macrogols provide evidence of safety at the recommended therapeutic dose.
- Instruction Pharmaceutical Particulars
- 6.1 List of excipients
Acesulfame Potassium
Orange Flavour6.2 Incompatibilities
Not applicable.6.3 Shelf life
4 years
Reconstituted solution: 24 hours6.4 Special precautions for storage
Reconstituted solution: Store in a refrigerator (2°C - 8°C) and covered6.5 Nature and contents of container
Sachet: Laminate consisting of four layers: low density polyethylene (LDPE), Aluminium, LDPE and paper. Pack sizes: Boxes of 6, 8, 10, 20, 30, 40, 50, 60 or 100 sachets.
Not all pack sizes may be marketed.6.6 Special precautions for disposal and other handling
Throw away any solution not used within a 24 hour period.
- Instruction Content
- ## Composition
Each sachet of Macrogol 6.86 g Paediatric powder for oral solution contains the following active ingredients:
| | |
| --- | --- |
| Macrogol 3350 | 6.563 g |
| Sodium Chloride | 175.4 mg |
| Sodium Bicarbonate | 89.3 mg |
| Potassium Chloride | 23.30 mg |
The content of electrolyte ions per sachet when made up to 62.5 ml of solution is as follows:
| | |
| --- | --- |
| Sodium | 65 mmol/l |
| Chloride | 53 mmol/l |
| Potassium | 5.4 mmol/l |
| Bicarbonate | 17 mmol/l |
\*\*Excipient(s) with known effect\*\*
For the full list of excipients, see section 6.1
## Pharmaceutical Form
Powder for oral solution.
A white crystalline powder in single-dose sachets with orange odour.
## Clinical Particulars
4.1 Therapeutic indications
For the treatment of chronic constipation in children 2 to 11 years of age.
For the treatment of faecal impaction in children from the age of five years, defined as refractory constipation with faecal loading of the rectum and/or colon.
For the prevention of re-impaction after successful disimpaction in children 2 to 11 years of age.4.2 Posology and method of administration
\*\*Posology\*\*
\*\*Chronic constipation\*\*
The usual starting dose is 1 sachet daily for children aged 2 to 6 years, and 2 sachets daily for children aged 7 – 11 years. The dose should be adjusted up or down as required to produce regular soft stools. If the dose needs increasing this is best done every second day. The maximum dose needed does not normally exceed 4 sachets a day.
Treatment of children with chronic constipation needs to be or a prolonged period (at least 6 – 12 months). However, safety and efficacy of Compound Macrogol Paediatric has only been proved for a period of up to three months. Treatment should be stopped gradually and resumed if constipation recurs.
\*\*Faecal impaction\*\*
A course of treatment for faecal impaction with Compound Macrogol Paediatric is for up to 7 days as follows:
\*\*Daily dosage regimen:\*\*
| | | | | | | | |
| --- | --- | --- | --- | --- | --- | --- | --- |
| \*\*Number of Compound Macrogol Paediatric sachets\*\* | | | | | | | |
| \*\*Age (years)\*\* | \*\*Day 1\*\* | \*\*Day 2\*\* | \*\*Day 3\*\* | \*\*Day 4\*\* | \*\*Day 5\*\* | \*\*Day 6\*\* | \*\*Day 7\*\* |
| \*\*5 - 11\*\* | \*\*4\*\* | \*\*6\*\* | \*\*8\*\* | \*\*10\*\* | \*\*12\*\* | \*\*12\*\* | \*\*12\*\* |
The daily number of sachets should be taken in divided doses, all consumed within a 12 hour period.
The above dosage regimen should be stopped once disimpaction has occurred. An indicator of disimpaction is the passage of a large volume of stools. After disimpaction it is recommended that the child follows an appropriate bowel management program to prevent reimpaction (dosing for prevention of re-impaction should be as for patients with chronic constipation; see above).
Compound Macrogol Paediatric is not recommended for children below five years of age for the treatment of faecal impaction, or in children below two years of age for the treatment of chronic constipation. For patients of 12 years and older it is recommended to use Compound Macrogol Paediatric.
\*\*Patients with impaired cardiovascular function:\*\*
There are no clinical data for this group of patients. Therefore Compound Macrogol Paediatric is not recommended for treating faecal impaction in children with impaired cardiovascular function.
\*\*Patients with renal insufficiency\*\*:
There are no clinical data for this group of patients. Therefore Compound Macrogol Paediatric is not recommended for treating faecal impaction in children with impaired renal function.
\*\*Method of administration\*\*
Each sachet should be dissolved in 62.5 ml (quarter of a glass) of water. The correct number of sachets may be reconstituted in advance and kept covered and refrigerated for up to 24 hours. For example, for use in faecal impaction, 12 sachets can be made up into 750 ml of water.4.3 Contraindications
Intestinal perforation or obstruction due to structural or functional disorder of the gut wall, ileus, severe inflammatory conditions of the intestinal tract, such as Crohn's disease and ulcerative colitis and toxic megacolon.
Hypersensitivity to the active substance(s) or to any of the excipients listed in section 6.1.4.4 Special warnings and precautions for use
The fluid content of Compound Macrogol Paediatric when re-constituted with water does not replace regular fluid intake and adequate fluid intake must be maintained.
Avoid mixing PEG laxatives and starch-based thickeners in patients with dysphagia, considered at risk of aspiration.
Diagnosis of faecal impaction/faecal loading of the rectum should be confirmed by the physical or radiological examination of the abdomen and rectum.
Rarely symptoms indicating shifts of fluid/electrolytes e.g. oedema, shortness of breath, increasing fatigue, dehydration and cardiac failure have been reported in adults when using preparations containing macrogol. If this occurs Compound Macrogol Paediatric should be stopped immediately, electrolytes measured, and any abnormality should be treated appropriately.
When used in high doses to treat faecal impaction this medicinal product should be administered with caution to patients with impaired gag reflex, reflux oesophagitis or diminished levels of consciousness.
In case of diarrhoea, caution should be exercised, particularly in patients who are at higher risk for water -electrolyte balance disorders (e.g. the elderly, patients with impaired hepatic or renal function or patients taking diuretics) and electrolyte control should be considered.
Compound Macrogol Paediatric solution when reconstituted has no calorific value.
The absorption of other medicinal products could transiently be reduced due to an increase in gastro-intestinal transit rate induced by Compound Macrogol Paediatric (see section 4.5).
Compound Macrogol Paediatric contains 0.3106 mmol (12.11 mg) of potassium per sachet. This should be taken into consideration if the patient takes more than one sachet daily and has reduced kidney function, or is on a controlled potassium diet.
\*\*Compound Macrogol Paediatric contains\*\* about 93.4 mg sodium (main component of cooking/table salt) per sachet. This is equivalent to 4.6% of the recommended maximum daily dietary intake of sodium for an adult.4.5 Interaction with other medicinal products and other forms of interaction
Medicinal products in solid dose form taken within one hour of administration of large volumes of macrogol preparations (as used when treating faecal impaction) may be flushed from the gastrointestinal tract and not absorbed.
Macrogol raises the solubility of medicinal products that are soluble in alcohol and relatively insoluble in water.
There is a possibility that the absorption of other medicinal products could be transiently reduced during use with Compound Macrogol Paediatric (see section 4.4).There have been isolated reports of decreased efficacy with some concomitantly administered medicinal products, e.g. anti-epileptics.
Compound Macrogol Paediatric may result in as potential interactive effect when used with starch-based food thickeners. The polyethylene glycol (PEG) ingredient counteracts the thickening effect of starch, effectively liquefying preparations that need to remain thick for people with swallowing problems.4.6 Fertility, pregnancy and lactation
\*\*\*Pregnancy\*\*\*
There are limited amount of data from the use of Compound Macrogol Paediatric in pregnant women. Studies in animals have shown indirect reproductive toxicity (see section 5.3). Clinically, no effects during pregnancy are anticipated, since systemic exposure to macrogol 3350 is negligible.
Compound Macrogol Paediatric can be used during pregnancy.
\*\*\*Breastfeeding\*\*\*
No effects on the breastfed newborn/infant are anticipated since the systemic exposure of the breast-feeding woman to Macrogol 3350 is negligible.
Compound Macrogol Paediatric can be used during breast-feeding.
\*\*\*Fertility\*\*\*
There are no data on the effects of Compound Macrogol Paediatric on fertility in humans. There were no effects on fertility in studies in male and female rats (see section 5.3).4.7 Effects on ability to drive and use machines
Compound Macrogol Paediatric has no or negligible influence on the ability to drive and use machines.4.8 Undesirable effects
Reactions related to the gastrointestinal tract occur most commonly.
These reactions may occur as a consequence of expansion of the contents of the gastrointestinal tract, and an increase in motility due to the pharmacologic effects of Compound Macrogol Paediatric.
In the treatment of chronic constipation, diarrhoea or loose stools normally respond to a reduction in dose.
Diarrhoea, abdominal distension, anal discomfort and mild vomiting are more often observed during the treatment for faecal impaction. Vomiting may be resolved if the dose is reduced or delayed.
The frequency of the adverse reactions listed below is defined using the following convention: very common (≥1/10); common (≥1/100, <1/10); uncommon (≥1/1,000, <1/100); rare (≥1/10,000, <1/1000); and very rare (<1/10,000); not known (cannot be estimated from the available data).
| | | |
| --- | --- | --- |
| \*\*System Organ Class\*\* | \*\*Frequency\*\* | \*\*\*Adverse event\*\*\* |
| \*\*Immune system disorders\*\* | Rare | \*Anaphylaxis.\* |
| Not known | \*Angioedema, dyspnoea, rash, erythema, urticaria and pruritus.\* |
| \*\*Metabolism and nutrition disorders\*\* | Not known | \*Dehydration, electrolytes disorders (hypokalemia, hyponatraemia, hyperkalaemia)\* |
| \*\*Nervous system disorders\*\* | Not known | \*Headache.\* |
| \*\*Gastrointestinal disorders\*\* | Very common | \*Abdominal pain, borborygmi.\* |
| Common | \*Diarrhoea vomiting, nausea, anal discomfort.\* |
| Uncommon | \*Abdominal distension, flatulence.\* |
| Not known | \*Dyspepsia and peri-anal inflammation.\* |
| \*\*\*General disorders and administration site conditions\*\*\* | \*Not known\* | \*Peripheral oedema.\* |
\*\*\*\*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 Website: www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App Store.4.9 Overdose
Severe abdominal pain or distension can be treated by nasogastric aspiration. Extensive fluid loss by diarrhoea or vomiting may require correction of electrolyte disturbances.
## Pharmacological Properties
5.1 Pharmacodynamic properties
Pharmacotherapeutic group: Osmotically acting laxatives
ATC code: A06A D65
Macrogol 3350 acts by virtue of its osmotic action in the gut, which induces a laxative effect. Macrogol 3350 increases the stool volume, which triggers colon motility via neuromuscular pathways. The physiological consequence is an improved propulsive colonic transportation of the softened stools and a facilitation of the defaecation. Electrolytes combined with macrogol 3350 are exchanged across the intestinal barrier (mucosa) with serum electrolytes and excreted in faecal water without net gain or loss of sodium, potassium and water.
In an open study of Compound Macrogol Paediatric in chronic constipation, weekly defaecation frequency was increased from 1.3 at baseline to 6.7, 7.2 and 7.1 at weeks 2, 4 and 12 respectively. In a study comparing Compound Macrogol Paediatric and lactulose as maintenance therapy after disimpaction, weekly stool frequency at the last visit was 9.4 (SD 4.46) in the Compound Macrogol Paediatric group compared with 5.9 (SD 4.29). In the lactulose group 7 children re-impacted (23%) compared with no children in the Compound Macrogol Paediatric group.
For the indication of faecal impaction comparative studies have not been performed with other treatments (e.g. enemas). In a non-comparative study in 63 children, Compound Macrogol (Paediatric) cleared the faecal impaction in the majority of patients within 3 - 7 days of treatment. For the 5 - 11 years age group the average total number of sachets of Compound Macrogol Paediatric required was 47.2.5.2 Pharmacokinetic properties
Macrogol 3350 is unchanged along the gut. It is virtually unabsorbed from the gastrointestinal tract. Any macrogol 3350 that is absorbed is excreted via the urine.5.3 Preclinical safety data
Preclinical studies provide evidence that macrogol 3350 has no significant systemic toxicity potential, based on conventional studies of pharmacology, repeated dose toxicity and genotoxicity.
There were no direct embryotoxic or teratogenic effects in rats even at maternally toxic levels that are a multiple of 66 x the maximum recommended dose in humans for chronic constipation and 25 x for faecal impaction. Indirect embryofetal effects, including reduction in fetal and placental weights, reduced fetal viability, increased limb and paw hyperflexion and abortions, were noted in the rabbit at a maternally toxic dose that was 3.3 x the maximum recommended dose in humans for treatment of chronic constipation and 1.3 x for faecal impaction. Rabbits are a sensitive animal test species to the effects of GI-acting substances and the studies were conducted under exaggerated conditions with high dose volumes administered, which are not clinically relevant. The findings may have been a consequence of an indirect effect of Macrogol related to poor maternal condition as the result of an exaggerated pharmacodynamic response in the rabbit. There was no indication of a teratogenic effect.
There are long-term animal toxicity and carcinogenicity studies involving macrogol 3350. Results from these and other toxicity studies using high levels of orally administered high molecular weight macrogols provide evidence of safety at the recommended therapeutic dose.
## Pharmaceutical Particulars
6.1 List of excipients
Acesulfame Potassium
Orange Flavour6.2 Incompatibilities
Not applicable.6.3 Shelf life
4 years
Reconstituted solution: 24 hours6.4 Special precautions for storage
Reconstituted solution: Store in a refrigerator (2°C - 8°C) and covered6.5 Nature and contents of container
Sachet: Laminate consisting of four layers: low density polyethylene (LDPE), Aluminium, LDPE and paper. Pack sizes: Boxes of 6, 8, 10, 20, 30, 40, 50, 60 or 100 sachets.
Not all pack sizes may be marketed.6.6 Special precautions for disposal and other handling
Throw away any solution not used within a 24 hour period.
