Daktarin Oral Gel
SUMMARY OF PRODUCT CHARACTERISTICS
1 NAME OF THE MEDICINAL PRODUCT
DAKTARIN™ Oral Gel
2 QUALITATIVE AND QUANTITATIVE COMPOSITION
Each gram of Daktarin Oral Gel contains 20 mg of miconazole.
Excipients with known effect:
Alcohol 7.59 mg/g
For the full list of excipients, see 6.1.
3 PHARMACEUTICAL FORM
Oral gel
White gel with orange taste
4 CLINICAL PARTICULARS
4.1 Therapeutic indications
Oral treatment of fungal infections of the oropharynx and gastrointestinal tract. Miconazole gel is for use in adults, children and infants 4 months and older.
4.2 Posology and method of administration
For oral administration.
1 measuring spoon (provided) is equivalent to 124 mg miconazole per 5 mL gel.
Oropharyngeal candidosis
Infants: 4-24 months: 1.25mL (1/4 measuring spoon) of gel, applied four times a day after meals. Each dose should be divided into smaller portions and the gel should be applied to the affected area(s) with a clean finger. The gel should not be applied to the back of the throat due to possible choking. The gel should not be swallowed immediately, but kept in the mouth as long as possible.
Adults and children 2 years of age and older: 2.5mL (1/2 measuring spoon) of gel, applied four times a day after meals.
The gel should not be swallowed immediately, but kept in the mouth as long as possible.
The treatment should be continued for at least a week after the symptoms have disappeared.
For oral candidosis, dental prostheses should be removed at night and brushed with the gel.
Gastrointestinal tract candidosis
The gel may be used for infants (>4 months of age), children, and adults who have difficulty swallowing tablets. The dosage is 20mg per kg body weight per day, administered in four divided doses. The daily dose should not exceed 250mg (10mL Oral Gel) four times a day.
The treatment should be continued for at least a week after the symptoms have disappeared.
4.3 Contraindications
Known hypersensitivity to miconazole, other imidazole derivatives or to any of the excipients listed in section 6.1.
In infants less than 4 months of age or in those whose swallowing reflex is not yet sufficiently developed (see section 4.4)
In patients with liver dysfunction.
Coadministration of the following drugs that are subject to metabolism by CYP3A4: (See Section 4.5 Interactions with Other Medicinal Products and Other Forms of Interaction)
- Substrates known to prolong the QT-interval e.g. astemizole, cisapride, dofetilide, mizolastine, pimozide, quinidine, sertindole and terfenadine
- Ergot alkaloids
- HMG-CoA reductase inhibitors such as simvastatin and lovastatin
- Triazolam and oral midazolam
4.4. Special Warnings and Precautions for Use
If the concomitant use of Daktarin and anticoagulants is envisaged, the anticoagulant effect should be carefully monitored and titrated (see section 4.5).
Severe hypersensitivity reactions, including anaphylaxis and angioedema, have been reported during treatment with Daktarin and with other miconazole formulations (see section 4.8). If a reaction suggesting hypersensitivity or irritation should occur, the treatment should be discontinued.
It is advisable to monitor miconazole and phenytoin levels, if these two drugs are used concomitantly.
In patients using certain oral hypoglycaemics such as sulphonylureas, an enhanced therapeutic effect leading to hypoglycaemia may occur during concomitant treatment with miconazole and appropriate measures should be considered (See Section 4.5 Interactions with Other Medicinal Products and Other Forms of Interaction).
Choking in infants and young children
Particularly in infants and young children (aged 4 months - 2 years), caution is required, to ensure that the gel does not obstruct the throat. Hence, the gel should not be applied to the back of the throat.Each dose should be divided into smaller portions and applied into the mouth with a clean finger. Observe
the patient for possible choking. Also due to the risk of choking, the gel must not be applied to the nipple of a breast-feeding woman for administration to an infant.
It is important to take into consideration the variability of the maturation of the swallowing function in infants, especially when giving miconazole gel to infants between the ages of 4-6 months. The lower age limit should be increased to 5-6 months of age for infants who are pre-term, or infants exhibiting slow neuromuscular development.
This medicinal product contains small amounts of ethanol (alcohol), less than 100mg per dose.
Serious skin reactions (e.g. Toxic epidermal necrolysis and Stevens-Johnson syndrome) have been reported in patients receiving Daktarin Oral Gel (see section 4.8). It is recommended that patients be informed about the signs of serious skin reactions, and that use of Daktarin Oral Gel be discontinued at the first appearance of skin rash.
4.5 Interaction with other medicinal products and other forms of interaction
When using any concomitant medication the corresponding label should be consulted for information on the route of metabolism. Miconazole can inhibit the metabolism of drugs metabolised by the CYP3A4 and CYP2C9 enzyme systems. This can result in an increase and/or prolongation of their effects, including adverse effects.
Oral miconazole is contraindicated with the coadministration of the following drugs that are subject to metabolism by CYP3A4 (See Section 4.3 Contraindications);
• Substrates known to prolong the QT-interval e.g., astemizole, cisapride, dofetilide, mizolastine, pimozide, quinidine, sertindole and terfenadine
• Ergot alkaloids
• HMG-CoA reductase inhibitors such as simvastatin and lovastatin
• Triazolam and oral midazolam
When coadministered with oral miconazole the following drugs should be used with caution because of a possible increase or prolongation of the therapeutic outcome and/or adverse events. If necessary, their dosage should be reduced and, where appropriate, plasma levels monitored:
Drugs subject to metabolism by CYP2C9 (see Section 4.4 Special warnings and precautions for use);
• Oral anticoagulants such as warfarin,
• Oral hypoglycaemics such as sulphonylureas
• Phenytoin
Other drugs subject to metabolism by CYP3A4;
• HIV Protease Inhibitors such as saquinavir;
• Certain antineoplastic agents such as vinca alkaloids, busulfan and docetaxel;
• Certain calcium channel blockers such as dihydropyridines and verapamil;
• Certain immunosuppressive agents: cyclosporin, tacrolimus, sirolimus (= rapamycin)
• Others: carbamazepine, cilostazol, disopyramide, buspirone, alfentanil, sildenafil, alprazolam, brotizolam, midazolam IV, rifabutin, methylprednisolone, trimetrexate, ebastine and reboxetine.
4.6 Fertility, pregnancy and lactation
In animals, miconazole has shown no teratogenic effects but is foetotoxic at high oral doses. The significance of this to man is unknown. However, as with other imidazoles, Daktarin Oral Gel should be avoided in pregnant women if possible. The potential hazards should be balanced against the possible benefits.
It is not known whether miconazole is excreted in human milk. Caution should be exercised when prescribing Daktarin Oral Gel to nursing mothers.
4.7 Effects on ability to drive and use machines
Daktarin should not affect alertness or driving ability.
4.8 Undesirable Effects
The safety of Daktarin Oral Gel was evaluated in 111 patients with oral candidiasis or oral mycoses who participated in 5 clinical trials. Of these 111 patients, 88 were adults with oral candidiasis or oral mycoses who participated in 1 randomised, active-controlled, double-blind clinical trial and 3 open-label clinical trials. The other 23 patients were paediatric patients with oral candidiasis who participated in 1 randomised, active-controlled, open-label clinical trial in paediatric patients (aged <1 month to 10.7 years). These patients took at least one dose of Daktarin Oral Gel and provided safety data.
Based on the pooled safety data from these 5 clinical trials (adult and paediatric), the most commonly reported (>1% incidence) adverse reactions were nausea (6.3%), product taste abnormal (3.6%), vomiting (3.6%), oral discomfort (2.7%), regurgitation (1.8%), and dry mouth (1.8%). Dysgeusia was reported in 0.9% of patients.
Adult Patients
Based on the pooled safety data from the 4 clinical trials in adults, common adverse reactions reported included nausea (4.5%), product taste abnormal (4.5%), oral discomfort (3.4%), dry mouth (2.3%), dysgeusia (1.1%), and vomiting (1.1%).
Paediatric Patients
In the 1 paediatric clinical trial, the frequency of nausea (13.0%) and vomiting (13.0%) was very common, and regurgitation (8.7%) was common. As identified through post-marketing experience, choking may occur in infants and young children (See Section 4.3 Contraindications and Section 4.4 Special Warnings and Special Precautions). The frequency, type, and severity of other adverse reactions in children are expected to be similar to that in adults.
Table A includes all identified adverse reactions, including those that that have been reported from post-marketing experience.
The frequency categories use the following convention: 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); and not known (cannot be estimated from the available clinical trial data).
Table A: Adverse Drug Reactions in Patients Treated with
DAKTARIN Oral Gel
|
System Organ Class |
Adverse Drug Reactions | ||
|
Frequency Category | |||
|
Common (>1/100 to <1/10) |
Uncommon (>1/1,000 to <1/100) |
Not Known | |
|
Immune System Disorders |
Anaphylactic reaction, Hypersensitivity | ||
|
Nervous System Disorders |
Dysgeusia | ||
|
Respiratory, Thoracic and Mediastinal Disorders |
Choking | ||
|
Gastrointestinal Disorders |
Dry mouth, Nausea, Oral discomfort, Vomiting, Regurgitation |
Diarrhoea, Stomatitis, Tongue discolouration | |
|
Hepatobiliary Disorders |
Hepatitis | ||
|
Skin and Subcutaneous Tissue Disorders |
Angioedema, Toxic epidermal necrolysis, Stevens-Johnson syndrome, Urticaria, Rash, Acute generalised exanthematous pustulosis, Drug reaction with eosinophilia and systemic symptoms | ||
|
General Disorders and Administration Site Conditions |
Product taste abnormal | ||
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.
4.9 Overdose
Symptoms:
In the event of accidental overdose, vomiting and diarrhoea may occur. Treatment:
Treatment is symptomatic and supportive. A specific antidote is not available.
5 PHARMACOLOGICAL PROPERTIES
5.1 Pharmacodynamic properties
ATC Code: A01A B09 and A07A C01
Miconazole possesses an antifungal activity against the common dermatophytes and yeasts as well as an antibacterial activity against certain gram-positive bacilli and cocci.
Its activity is based on the inhibition of the ergosterol biosynthesis in fungi and the change in the composition of the lipid components in the membrane, resulting in fungal cell necrosis.
5.2 Pharmacokinetic properties
Absorption:
Miconazole is systemically absorbed after administration as the oral gel. Administration of a 60 mg dose of miconazole as the oral gel results in peak plasma concentrations of 31 to 49 ng/mL, occurring approximately two hours post-dose.
Distribution:
Absorbed miconazole is bound to plasma proteins (88.2%), primarily to serum albumin and red blood cells (10.6%).
Metabolism and Elimination:
The absorbed portion of miconazole is largely metabolized; less than 1% of an administered dose is excreted unchanged in the urine. The terminal half-life of plasma miconazole is 20 to 25 hours in most patients. The elimination half-life of miconazole is similar in renally impaired patients. Plasma concentrations of miconazole are moderately reduced (approximately 50%) during hemodialysis. About 50% of an oral dose may be excreted in the faeces partly metabolized and partly unchanged.
5.3 Preclinical safety data
Preclinical data reveal no special hazard for humans based on conventional studies of local irritation, single and repeated dose toxicity, genotoxicity, and toxicity to reproduction.
6 PHARMACEUTICAL PARTICULARS
6.1 List of excipients
Purified water Pregelatinised potato starch Alcohol Polysorbate 20 Sodium saccharin Cocoa flavour Orange flavour Glycerol
6.2 Incompatibilities
None known
6.3 Shelf life
3 years
6.4 Special precautions for storage
Do not store above 30°C
6.5 Nature and contents of container
Aluminium tubes containing 5g*, 15g*, 30g*, 40g* or 80g gel.
A 5ml plastic spoon, marked with a 2.5ml graduation is provided. * not marketed
6.6 Special precautions for disposal
Not applicable
7 MARKETING AUTHORISATION HOLDER
Janssen-Cilag Limited 50-100 Holmers Farm Way High Wycombe Buckinghamshire HP12 4EG UK
8 MARKETING AUTHORISATION NUMBER(S)
PL 00242/0048
9 DATE OF FIRST AUTHORISATION/RENEWAL OF THE AUTHORISATION
19/07/1977 / 18/09/2003
10 DATE OF REVISION OF THE TEXT
10/12/2015