Dexamethasone 10mg/5ml Oral Solution
SUMMARY OF PRODUCT CHARACTERISTICS
1 NAME OF THE MEDICINAL PRODUCT
Dexamethasone 10mg/5ml Oral Solution
2 QUALITATIVE AND QUANTITATIVE COMPOSITION
Each 5ml of solution contains 10mg of dexamethasone (as dexamethasone sodium phosphate).
Each 5ml of solution also contains 1375mg liquid maltitol (E965) and 490mg sorbitol (E420).
For the full list of excipients, see section 6.1
3 PHARMACEUTICAL FORM
Oral Solution
A colourless to yellowish solution with a mint odour.
4 CLINICAL PARTICULARS
4.1 Therapeutic indications
Dexamethasone is a corticosteroid. It is designed for use in certain endocrine and non-endocrine disorders, in certain cases of cerebral oedema and for diagnostic testing of adrenocortical hyperfunction.
Endocrine disorders: Endocrine exophthalmos.
Non-endocrine disorders:
Dexamethasone may be used in the treatment of non-endocrine corticosteroid responsive conditions including:
Allergy and anaphylaxis: Anaphylaxis.
Arteritis collagenosis: Polymyalgia rheumatica, polyarteritis nodosa.
Haematological disorders: Haemolytic anaemia (also auto immune), leukaemia, myeloma, idiopathic thrombocytopenic purpura in adults, reticulolymphoproliferative disorders (see also under oncological disorders).
Gastroenterological disorders: For treatment during the critical stage in: ulcerative colitis (rectal only); regional enteritis (Crohn’s disease), certain forms of hepatitis.
Muscular disorders: Polymyositis.
Neurological disorders: Raised intra-cranial pressure secondary to cerebral tumours, acute exacerbations of multiple sclerosis.
Ocular disorders: Anterior and posterior uveitis, optic neuritis, chorioretinitis, iridocyclitis, temporal arteritis, orbital pseudotumour.
Renal disorders: Nephrotic syndrome.
Pulmonary disorders: Chronic bronchial asthma, aspiration pneumonitis, chronic obstructive pulmonary disease (COPD), sarcoidosis, allergic pulmonary disease such as farmer’s and pigeon breeder’s lung, Loffler’s syndrome, cryptogenic fibrosing alveolitis.
Rheumatic disorders: Some cases or specific forms (Felty’s syndrome, Sjogren’s syndrome) of rheumatoid arthritis, including juvenile rheumatoid arthritis, acute rheumatism, lupus erythematosus disseminatus, temporal arteritis (polymyalgia rheumatica).
Skin disorders: Pemphigus vulgaris, bullous pemphigoid, erythrodermas, serious forms of erythema multiforme (Stevens-Johnson syndrome), mycosis fungoides, bullous dermatitis herpetiformis.
Oncological disorders: Lymphatic leukaemia, especially acute forms, malignant lymphoma (Hodgkin’s disease, non-Hodgkin’s lymphoma), metastasized breast cancer, hypercalcaemia as a result of bone metastasis or Kahler’s disease, Kahler’s disease.
Various: Intense allergic reactions; as immunosuppressant in organ transplantation; as an adjuvant in the prevention of nausea and vomiting and in the treatment of cancer with oncolytics that have a serious emetic effect.
4.2 Posology and method of administration
Adults
General considerations:
The dosage should be titrated to the individual response and the nature of the disease. In order to minimise side effects, the lowest effective possible dosage should be used (see ‘Side effects’).
The initial dosage varies from 0.5 - 9mg (0.25ml to 4.5ml) a day depending on the disease being treated. In more severe diseases, doses higher than 9mg may be required. The initial dosage should be maintained or adjusted until the patient’s response is satisfactory. Both the dose in the evening, which is useful in alleviating morning stiffness, and the divided dosage regimen are associated with greater suppression of the hypothalamopituitary-adrenal axis. If satisfactory clinical response does not occur after a reasonable period of time, discontinue treatment with dexamethasone and transfer the patient to another therapy.
If the initial response is favourable, the maintenance dosage should be determined by lowering the dose gradually to the lowest dose required to maintain an adequate clinical response. Chronic dosage should preferably not exceed 1.5mg (0.75ml) dexamethasone daily.
Patients should be monitored for signs that may require dosage adjustment. These may be changes in clinical status resulting from remissions or exacerbations of the disease, individual drug responsiveness and the effect of stress (e.g. surgery, infection, trauma). During stress it may be necessary to increase dosage temporarily.
If the drug is to be stopped after more than a few days of treatment, it should be withdrawn gradually.
The following equivalents facilitate changing to dexamethasone from other glucocorticoids:
Milligram for milligram, dexamethasone is approximately equivalent to betamethasone, 4 to 6 times more potent than methylprednisolone and triamcinolone, 6 to 8 times more potent than prednisone and prednisolone, 25 to 30 times more potent than hydrocortisone, and about 35 times more potent than cortisone.
Acute, self-limiting allergic disorders or acute exacerbations of chronic allergic disorders.
The following dosage schedule combining parenteral and oral therapy is suggested:
First day: Dexamethasone sodium phosphate injection 4mg or 8mg
intramuscularly.
Second day: 1mg (0.5ml) Dexamethasone 10mg/5ml Oral Solution twice a day.
Third day: 1mg (0.5ml) Dexamethasone 10mg/5ml Oral Solution twice a day.
Fourth day: 500 micrograms (0.25ml) Dexamethasone 10mg/5ml Oral Solution
twice a day.
500 micrograms (0.25ml) Dexamethasone 10mg/5ml Oral Solution
Fifth day: twice a day.
Sixth day:
Seventh day:
Eighth day:
500 micrograms (0.25ml) Dexamethasone 10mg/5ml Oral Solution. 500 micrograms (0.25ml) Dexamethasone 10mg/5ml Oral Solution. Re-assessment.
This schedule is designed to ensure adequate therapy during acute episodes whilst minimising the risk of over dosage in chronic cases.
Raised intracranial pressure: Initial therapy is usually by injection. When maintenance therapy is required, this should be changed to dexamethasone oral solution as soon as possible. For the palliative management of patients with recurrent or inoperable brain tumours, maintenance dosage should be calculated individually.
A dosage of 2mg two or three times a day may be effective. The smallest dosage necessary to control symptoms should always be used.
Dexamethasone suppression tests: 1. Tests for Cushing’s syndrome: 2mg (1ml) Dexamethasone 10mg/5ml Oral Solution should be administered at 11pm. Blood samples are then taken at 8am the next morning for plasma cortisol determination.
If greater accuracy is required, 500 micrograms (0.25ml) Dexamethasone 10mg/5ml Oral Solution should be administered every 6 hours for 48 hours. Blood should be drawn at 8am for plasma cortisol determination on the third morning.
Twenty four hour urine collection should be employed for 17-hydroxycorticosteroid excretion determination.
2. Test to distinguish Cushing’s syndrome caused by pituitary ACTH excess from the syndrome induced by other causes:
2mg (1ml) Dexamethasone 10mg/5ml Oral Solution should be administered every 6 hours for 48 hours. Blood should be drawn at 8am for plasma cortisol determination on the third morning.
Twenty four hour urine collection should be employed for 17-hydroxycorticosteroid excretion determination.
Paediatric population:
Dosage should be limited to a single dose on alternate days to lessen retardation of growth and minimize suppression of hypothalamo-pituitary-adrenal axis.
Elderly:
Treatment of elderly patients, particularly if long term, should be planned bearing in mind the more serious consequences of the common side effects of corticosteroids in old age.
Method of administration (Dexamethasone Oral Solution): The medicinal product is supplied with a 5ml graduated dosing syringe and a “press-in” syringe/bottle adaptor. Each individual graduation is equivalent to 0.25ml of oral solution.
4.3 Contraindications
- Hypersensitivity to dexamethasone or any of the excipients listed in section 6.1.
- Systemic infection unless specific anti-infective therapy is employed.
- Systemic fungal infections.
- Stomach ulcer or duodenal ulcer.
- Infection with tropical worms.
4.4 Special warnings and precautions for use
Patients should carry “steroid treatment” cards which give clear guidance on the precautions to be taken to minimise risk and which provide details of prescriber, drug, dosage and the duration of treatment.
An adrenocortical insufficiency, which is caused by glucocortocoid treatment, can, depending on the dose and length of treatment, remain for many months, and in some cases more than a year, after discontinuation of treatment.
During treatment with Dexamethasone 10mg/5ml Oral Solution for specific physical stress conditions (trauma, surgery, childbirth, etc.), a temporary increase in dose may be required. Because of the possible risk in stressful conditions, a corticosteroid ID should be made for patients undergoing long-term treatment. Even in cases of prolonged adrenocortical insufficiency after discontinuation of treatment, the administration of glucocorticoids can be necessary in physically stressful situations. An acute therapy-induced adrenocortial insufficiency can be minimized by slow dose reduction until a planned discontinuation time.
Treatment with Dexamethasone 10mg/5ml Oral Solution should only be implemented in the event of the strongest indications and, if necessary, additional targeted antiinfective treatment administered for the following illnesses:
- Acute viral infections (Herpes zoster, Herpes simplex, Varicella, herpetic keratitis)
- HBsAG-positive chronic active Hepatitis
- Approximately 8 weeks prior through 2 weeks after vaccinations with live vaccines
- Systemic mycoses and parisitosis (e.g. Nematodes)
- Poliomyelitis
- Lymphadenitis after BCG vaccination
- Acute and chronic bacterial infections
- With a history of tuberculosis (reactivation risk). Use only under tuberculostatic protection
In addition, treatment with Dexamethasone 10mg/5ml Oral Solution should only be implemented under strong indications and, if necessary, additional specific treatment must be implemented for:
- Gastrointestinal ulcers
- Severe osteoporosis
- Difficult to regulate high blood pressure
- Difficult to regulate Diabetes mellitus
- Psychiatric disorders (including history)
- Angle closure glaucoma and wide-angle glaucoma
- Corneal ulcerations and corneal injuries
Because of the risk of an intestinal perforation, Dexamethasone 10mg/5ml Oral Solution must only be used under urgent indication and under appropriate monitoring for:
- Severe ulcerative colitis with threatened perforation
- Diverticulitis
- Entero-anastomosis (immediately postoperative)
Signs of peritoneal irritation after gastrointestinal perforation may be absent in patients receiving high doses of glucocorticoids.
A higher need for insulin, or oral antidiabetics, must be taken into consideration when administering Dexamethasone 10mg/5ml Oral Solution to diabetics.
Regular blood pressure monitoring is necessary during treatment with Dexamethasone 10mg/5ml Oral Solution, particularly during administration of higher doses and with patients with difficult to regulate high blood pressure.
Because of the risk of deterioration, patients with severe cardiac insufficiency should be carefully monitored.
Treatment with Dexamethasone 10mg/5ml Oral Solution can conceal the symptoms of an existing, or developing infection thereby making a diagnosis more difficult.
The prolonged use of even small amounts of Dexamethasone leads to an increased risk of infection, even by microorganisms which otherwise rarely cause infections (so-called opportunistic infections). Vaccinations with inactivated vaccine are always possible. However, it should be noted that the immune reaction and thereby the success of inoculation, can be affected by higher doses of corticoids.
Regular checkups with doctors (including vision checkups in three-month intervals) are advised during long-term treatment with Dexamethasone 10mg/5ml Oral Solution.
At high doses, sufficient calcium intake and sodium restriction, as well as serum potassium levels should be monitored. Depending on the length and dosage of the treatment, a negative influence on calcium metabolism can be expected, so that an osteoporosis prophylaxis is recommended. This applies, above all, to co-existing risk factors like familial disposition, increased age, after menopause, insufficient protein and calcium intake, heavy smoking, excessive alcohol intake, as well as insufficient exercise. Prevention consists of sufficient calcium and vitamin D intake and physical activity. Additional medical treatment should be considered in the event of preexisting osteoporosis.
The following risks should be considered upon interruption or discontinuation of long-term glucocorticoid administration:
- Exacerbation or recurrence of the underlying disease, acute adrenal insufficiency, corticosteroid withdrawal syndrome.
- Certain viral diseases (chickenpox, measles) in patients treated with glucocorticoids, may be very severe.
- Children and immunocompromised persons without previous chickenpox or measles infection are particularly at risk. If these people have contact with people infected with measles or chickenpox while undergoing treatment with Dexamethasone 10mg/5ml Oral Solution, a preventative treatment should be introduced if necessary.
Psychiatric reactions
Patients and/or carers should be warned that potentially severe psychiatric adverse reactions may occur with systemic steroids (see section 4.8). Symptoms typically emerge within a few days or weeks of starting the treatment. Risks may be higher with high doses/systemic exposure (see also section 4.5 pharmacokinetic interactions that can increase the risk of side effects), although dose levels do not allow prediction of the onset, type, severity or duration of reactions. Most reactions recover after either dose reduction or withdrawal, although specific treatment may be necessary.
Patients/carers should be encouraged to seek medical advice if worrying psychological symptoms develop, especially if depressed mood or suicidal ideation is suspected. Patients/carers should also be alert to possible psychiatric disturbances that may occur either during or immediately after dose tapering/withdrawal of systemic steroids, although such reactions have been reported infrequently.
Particular care is required when considering the use of systemic corticosteroids in patients with existing or previous history of severe affective disorders in themselves or in their first degree relatives. These would include depressive or manic-depressive illness and previous steroid psychosis.
Preterm neonates
Available evidence suggests long-term neurodevelopmental adverse events after early treatment (<96 hours) of premature infants with chronic lung disease at starting doses of 0.25mg/kg twice daily.
Paediatric population
Corticosteroids cause a dose-dependent inhibition of growth in infancy, childhood, and adolescence, which may be irreversible. Therefore, during long-term treatment with Dexamethasone 10mg/5ml Oral Solution, the indication should be very strongly presented in children and their growth rate should be checked regularly.
Use in the elderly
The adverse effects of systemic corticosteroids can have serious consequences especially in old age, mainly osteoporosis, hypertension, hypokalaemia, diabetes, susceptibility to infection and skin atrophy. Close clinical monitoring is required to prevent life-threatening reactions.
Influence of diagnostic tests
Glucocorticoids can suppress skin reaction to allergy testing. They can also affect the nitroblue tetrazolium test for bacterial infections and cause false-negative results.
Note on doping
The use of doping tests when taking Dexamethasone 10mg/5ml Oral Solution can lead to positive results.
Excipient Warnings
This medicinal product contains Liquid Maltitol and Sorbitol. Patients with rare hereditary problems of fructose intolerance should not take this medicine.
4.5 Interaction with other medicinal products and other forms of interaction
Effects of other medicinal products on dexamethasone:
Dexamethasone is metabolised via cytochrome P450 3A4 (CYP3A4). Concomitant administration of dexamethasone with inducers of CYP3A4, such as phenytoin, barbiturates, ephedrine, rifabutin, carbamazepine and rifampicin may lead to decreased plasma concentrations of dexamethasone and the dose may need to be increased. Concomitant administration of inhibitors of CYP3A4 such as ketoconazole, ritonavir and erythromycin may lead to increased plasma concentrations of dexamethasone.
These interactions may also interfere with dexamethasone suppression tests, which therefore should be interpreted with caution during administration of substances that affect the metabolism of dexamethasone.
Ketoconazole may increase plasma concentrations of dexamethasone by inhibition of CYP3A4, but may also suppress corticosteroid synthesis in the adrenal and thereby cause adrenal insufficiency at withdrawal of corticosteroid treatment.
Ephedrine may increase the metabolic clearance of corticosteroids, resulting in decreased plasma levels. An increase of the corticosteroid dose might be necessary.
False-negative results in the dexamethasone suppression test in patients being treated with indometacin have been reported.
Antibiotics: Macrolide antibiotics have been reported to cause a significant decrease in corticosteroid clearance.
Anticholinesterases: Concomitant use of anticholinesterase agents and corticosteroids may produce severe weakness in patients with myasthenia gravis. If possible, anticholinesterase agents should be withdrawn at least 24 hours before initiating corticosteroid therapy.
Colestyramine: Colestyramine may decrease the absorption of dexamethasone.
Estrogens, including oral contraceptives: Estrogens may decrease the hepatic metabolism of certain corticosteroids, thereby increasing their effect.
Aminoglutethimide: Decrease of dexamethasone efficacy, due to its metabolism increase. An adjustment of dexamethasone dosage may be required.
Gastrointestinal topicals, antacids, charcoal: A decrease in digestive absorption of glucocorticoids have been reported with prednisolone and dexamethasone.
Therefore, glucocorticoids should be taken separately from gastrointestinal topicals, antacids or charcoal, with an interval between treatment of at least two hours.
Effects of dexamethasone on other medicinal products
Dexamethasone is a moderate inducer of CYP3A4. Concomitant administration of dexamethasone with substances that are metabolised via CYP3A4 could lead to increased clearance and decreased plasma concentrations of these substances.
The renal clearance of salicylates is increased by corticosteroids and therefore, salicylate dosage should be reduced along with steroidal withdrawal.
The desired effects of hypoglycaemic agents (including insulin), anti-hypertensives and diuretics are antagonised by corticosteroids.
The hypokalaemic effects of acetazolamide, loop diuretics, thiazide diuretics, amphotericin B injection, potassium depleting agents, corticosteroids (gluco-mineralo), tetracosactide and carbenoxolone are enhanced. Hypokalaemia predisposes to cardiac arrhythmia especially “torsade de pointes” and increase the toxicity of cardiac glycosides. Hypokalemia should be corrected before corticosteroid treatment initiation. In addition, there have been cases reported in which concomitant use of amphotericin B and hydrocortisone was followed by cardiac enlargement and congestive heart failure.
Sultopride has been linked to ventricular arrhythmias, especially torsade de pointes. This combination is not recommended.
Patients taking NSAIDs should be monitored since the incidence and/or severity of gastro-ulceration may increase. Aspirin should also be used cautiously in conjunction with corticosteroids in hypoprothrombinaemia.
Antitubercular drugs: Serum concentrations of isoniazid may be decreased.
Ciclosporin: Increased activity of both ciclosporin and corticosteroids may occur when the two are used concurrently. Convulsions have been reported with this concurrent use.
Thalidomide: Co-administration with thalidomide should be employed cautiously, as toxic epidermal necrolysis has been reported with concomitant use.
Corticosteroids may affect the nitroblue tetrazolium test for bacterial infection and produce false-negative results.
Vaccines attenuated live
Risk of fatal systemic disease
Praziquantel:
Decrease in praziquantel plasma concentrations, with a risk of treatment failure, due to its hepatic metabolism increased by dexamethasone.
Oral anticoagulants:
Possible impact of corticosteroid therapy on the metabolism of oral anticoagulants and on clotting factors. At high doses or with treatment for more than 10 days, there is a risk of bleeding specific to corticosteroid therapy (gastrointestinal mucosa, vascular fragility). Patients taking corticosteroids associated with oral anticoagulants should be closely monitored (biological investigations on 8th day, then every 2 weeks during treatment and after treatment discontinuation).
Insulin, sulfonylureas, metformin:
Increase in blood glucose, with sometimes diabetic ketosis, since corticosteroids impair carbohydrate tolerance. Therefore, blood and urine self-monitoring should be reinforced by the patient, in particular at the start of treatment.
Isoniazid:
A decrease in plasma isoniazid levels have been reported with prednisolone. The suggested mechanism is an increase in hepatic metabolism of isoniazid and a decrease in the hepatic metabolism of isoniazid and a decrease in the hepatic metabolism of glucocorticoids. Patients taking isoniazid should be closely monitored.
4.6 Fertility, pregnancy and lactation
Pregnancy
Dexamethasone crosses the placenta. Administration of corticosteroids to pregnant animals can cause abnormalities in foetal development, including cleft palate, intrauterine growth retardation and effects on brain growth and development. There is no evidence that corticosteroids result in an increased incidence of congenital abnormalities, such as cleft palate/lip in man (see Section 5.3). Long-term or repeated corticosteroid therapy in pregnancy increases the risk of intrauterine growth retardation. In newborns exposed to corticosteroids in the prenatal period, there is an increased risk of adrenal insufficiency, which under normal circumstances undergoes spontaneous postnatal regression, and is rarely of clinical significance. Dexamethasone should be prescribed during pregnancy and particularly in the first trimester only if the benefit outweighs the risks for the mother and child.
Glucocorticoids are excreted in breast milk. There are no known risks to infants. Nevertheless, extra caution should be exercised regarding its indication during pregnancy. Should the relevant condition require higher doses, treatment should be discontinued.
4.7 Effects on ability to drive and use machines
Dexamethasone 10mg/5ml Oral Solution has no or negligible influence on the ability to drive and use machines.
4.8 Undesirable effects
The incidence of anticipated adverse effects, such as the suppression of the hypothalamic-pituitary-adrenal axis correlates with the relative potency of the substance, dose, time of day of administration and duration of treatment. During a short-term therapy, in compliance with the dosage recommendations and close monitoring of patients, the risk of side effects is low.
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Infections and infestations |
Increased susceptibility to, or exacerbation of, (latent) infections with masking of clinical symptoms, opportunistic infections, reactivation of latent tuberculosis, exacerbation of eye infections, candidiasis |
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Blood and lymphatic system disorders |
Leukocytosis, lymphopenia, eosinopenia, polycythemia |
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Immune system disorders |
Hypersensitivity reactions including anaphylaxis, immunosuppression (see also under “Infections and parasitic diseases”) |
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Endocrine disorders |
Suppression of the hypothalamic-pituitary-adrenal axis and induction of Cushing's syndrome (typical symptoms: full-moon face, plethora, truncal obesity), secondary adrenal and pituitary insufficiency (especially in stress such as trauma or surgery) |
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Metabolism and nutrition disorders |
Weight gain, negative protein and calcium balance, increased appetite, sodium and water retention, potassium loss (caution: rhythm disorders), hypokalemic alkalosis, manifestation of latent diabetes mellitus, impaired carbohydrate tolerance with increased dose requirements of antidiabetic therapy, hypercholesterolemia, hypertriglyceridaemia |
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Psychiatric disorders |
Psychological dependence, depression, insomnia, aggravated schizophrenia, mental illness, from euphoria to manifest psychosis |
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Nervous system disorders |
Increased intracranial pressure with papilloedema in children (pseudotumor cerebri) usually following discontinuation of treatment; manifestation of latent epilepsy, increased seizures in overt epilepsy |
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Eye disorders |
Elevated intraocular pressure, glaucoma, papilloedema, cataract, mainly with posterior subcapsular opacity, corneal and scleral atrophy, increased ophthalmic viral, fungal and bacterial infections, worsening of symptoms associated with corneal ulcers |
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Cardiac disorders |
Cardiac muscle rupture after recent history of myocardial infarction, congestive heart failure in predisposed patients |
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Vascular disorders |
Hypertension, vasculitis, increased atherosclerosis and risk of thrombosis/thromboembolism |
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Respiratory, thoracic and mediastinal disorders |
Hiccough |
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Gastrointestinal disorders |
Dyspepsia, gastric ulcers with perforation and bleeding, acute pancreatitis, ulcerative esophagitis, flatulence, nausea, vomiting |
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Skin and subcutaneous disorders |
Hirsutism, hypertrichosis, skin atrophy, telangiectasia, striae, erythema, steroid acne, petechiae, ecchymosis, allergic dermatitis, urticaria, angioneurotic oedema, thinning hair, pigment disorders, increased capillary fragility, perioral dermatitis |
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Musculoskeletal and connective tissue disorders |
Growth inhibition in infants, children and adolescents, premature epiphyseal closure, osteoporosis, fractures of the spine and long bones, aseptic necrosis of the femoral and the humeral bones, tendon tears, proximal myopathy, muscle weakness, loss of muscle mass |
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Reproductive system and breast disorders |
Irregular menses, amenorrhea, impotence |
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General disorders and administration site conditions |
Delayed wound healing, discomfort, steroid withdrawal syndrome: a too rapid reduction in corticosteroid dose after prolonged treatment can lead to acute adrenal insufficiency, hypotension, and death. A withdrawal syndrome may present with fever, myalgia, arthralgia, rhinitis, conjunctivitis, pain, itchy skin nodules and weight loss. |
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Injury, poisoning and procedural complications |
Reduced response to vaccination and skin tests, tendency to bruise |
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 website: www.mhra.gov.uk/yellowcard.
4.9 Overdose
Reports of acute toxicity and/or deaths following overdosage with glucocorticoids are rare. No antidote is available. Treatment is probably not indicated for reactions due to chronic poisoning unless the patient has a condition that would render him unusually susceptible to ill effects from corticosteroids. In this case, the stomach
should be emptied and symptomatic treatment should be instituted as necessary. Anaphylactic and hypersensitivity reactions may be treated with epinephrine (adrenaline), positive-pressure artificial respiration and aminophylline. The patient should be kept warm and quiet. The biological half life of dexamethasone in plasma is about 190 minutes.
5 PHARMACOLOGICAL PROPERTIES
5.1 Pharmacodynamic properties
ATC Code: H02A B02
Pharmacotherapeutic Group: Glucocorticoids
Dexamethasone is a highly potent and long-acting glucocorticoid with negligible sodium retaining properties and is therefore, particularly suitable for the use in patients with cardiac failure and hypertension. It's anti-inflammatory potency is 7 times greater than prednisolone and, like other glucocorticoids, dexamethasone also has anti-allergic, antipyretic and immunosuppressive properties.
5.2 Pharmacokinetic properties
Dexamethasone is well absorbed when given by mouth; peak plasma levels are reached between 1 and 2 hours after ingestion and show wide interindividual variations. In healthy subjects a plasma half life of 3-6 hours has been observed, however in studies of patients this can be reduced to under 2 hours. Dexamethasone is bound (to about 77%) to plasma proteins, mainly albumins. Percentage protein binding of dexamethasone, unlike that of cortisol, remains practically unchanged with increasing steroid concentrations. Corticosteroids are rapidly distributed to all body tissues. Dexamethasone is metabolised mainly in the liver but also in the kidney. Dexamethasone and its metabolites are excreted in the urine.
5.3 Preclinical safety data
In animal studies, cleft palate was observed in rats, mice, hamsters, rabbits, dogs and primates; not in horses and sheep. In some cases these divergences were combined with defects of the central nervous system and of the heart. In primates, effects in the brain were seen after exposure. Moreover, intra-uterine growth can be delayed. All these effects were seen at high dosages.
6.1 List of excipients
Propylene glycol (E1520)
Liquid maltitol (E965)
Mint flavour
Liquid sorbitol (non-crystallising) (E420)
Sodium citrate dihydrate (E331)
EDTA disodium Sucralose
Sodium hydroxide solution 1N Purified water
6.2 Incompatibilities
In the absence of compatibility studies, this medicinal product must not be mixed with other medicinal products.
6.3 Shelf life
2 years
After first opening: 3 months
6.4 Special precautions for storage
Do not store above 25°C.
Store in the original package in order to protect from light.
Do not refrigerate.
6.5 Nature and contents of container
Amber (Type III) glass bottle, with child-resistant, tamper-evident screw cap with an LDPE liner, a 5ml graduated oral dosing syringe and a “press-in” syringe/bottle adaptor.
Pack size: 30ml and 50ml.
6.6 Special precautions for disposal
Any unused product or waste material should be disposed of in accordance with local requirements.
7 MARKETING AUTHORISATION HOLDER
Focus Pharmaceuticals Ltd Capital House, 1st Floor,
85 King William Street,
London EC4N 7BL,
United Kingdom.
8 MARKETING AUTHORISATION NUMBER(S)
PL 20046/0277
9 DATE OF FIRST AUTHORISATION/RENEWAL OF THE AUTHORISATION
19/05/2014
10 DATE OF REVISION OF THE TEXT
29/06/2015