1. Name Of The Medicinal Product
Difflam Sore Throat Rinse.
2. Qualitative And Quantitative Composition
Benzydamine Hydrochloride 0.15% w/v.
3. Pharmaceutical Form
Solution for use as a gargle/oral rinse.
4. Clinical Particulars
4.1 Therapeutic Indications
Difflam Sore Throat Rinse is a locally acting analgesic and anti-inflammatory treatment for the relief of painful inflammatory conditions of the throat including pharyngitis.
4.2 Posology And Method Of Administration
Adults: Rinse or gargle with 15ml (using measuring cup provided) every 1½ to 3 hours as required for pain relief.
The solution should be expelled from the mouth after use.
Children: Not suitable for children aged 12 years or under.
Elderly: No special dosage recommendations are made for elderly patients.
Uninterrupted treatment should not exceed seven days, except under medical supervision.
4.3 Contraindications
Difflam Sore Throat Rinse is contra-indicated in patients with known hypersensitivity to any of the ingredients.
4.4 Special Warnings And Precautions For Use
Difflam Sore Throat Rinse should generally be used undiluted, but if 'stinging' occurs the rinse may be diluted with water. Avoid contact with the eyes.
4.5 Interaction With Other Medicinal Products And Other Forms Of Interaction
None known.
4.6 Pregnancy And Lactation
Difflam should not be used in pregnancy or lactation unless considered essential by the physician. There is no evidence of a teratogenic effect in animal studies.
4.7 Effects On Ability To Drive And Use Machines
Not applicable.
4.8 Undesirable Effects
Side-effects are minor. Occasionally, oral tissue numbness or 'stinging' sensations may occur. Hypersensitivity reactions occur very rarely but may be associated with pruritus rash, urticaria, photodermatitis and occasionally laryngospasm or bronchospasm.
4.9 Overdose
Difflam Sore Throat Rinse is unlikely to cause adverse systemic effects, even if accidental ingestion should occur. No special measures are required.
5. Pharmacological Properties
5.1 Pharmacodynamic Properties
Benzydamine exerts an anti-inflammatory and analgesic effect by stabilising the cellular membrane and inhibiting prostaglandin synthesis.
5.2 Pharmacokinetic Properties
Oral doses of benzydamine are well absorbed and plasma drug concentrations reach a peak fairly rapidly and then decline with a half-life of about 13 hours. Less than 20% of the drug is bound to plasma proteins.
Although local drug concentrations are relatively large, the systemic absorption of mouthwash-gargle doses of benzydamine is relatively low compared to oral doses. This low absorption should greatly diminish the potential for any systemic drug side-effects when benzydamine is administered by this route. Benzydamine is metabolized primarily by oxidation, conjugation and dealkylation.
5.3 Preclinical Safety Data
Non-Clinical Data reveal no special hazards for humans based on conventional studies of safety pharmacology, repeated toxicity, genotoxicity, cardiogenic potential, and toxicity to reproduction.
6. Pharmaceutical Particulars
6.1 List Of Excipients
Ethanol (96% v/v) BP Glycerol Ph Eur, Saccharin Sodium BP, Mouthwash Flavour, 52 503/T, Polysorbate 20 Ph Eur, Methyl Hydroxybenzoate Ph Eur, Quinoline Yellow (E104), Patent Blue V (E131), Purified Water Ph Eur.
6.2 Incompatibilities
None known.
6.3 Shelf Life
36 months.
6.4 Special Precautions For Storage
Store between 5°C and 30°C; do not freeze; do not leave uncartonned bottle in direct sunlight.
6.5 Nature And Contents Of Container
Clear glass bottle with screw cap containing 200 ml.
6.6 Special Precautions For Disposal And Other Handling
Dose measure included.
7. Marketing Authorisation Holder
Meda Pharmaceuticals Ltd
249 West George Street
Glasgow
G2 4RB
Trading as:
Meda Pharmaceuticals Ltd
Skyway House
Parsonage Road
Takeley
Bishop's Stortford
CM22 6PU
8. Marketing Authorisation Number(S)
PL 15142/0047
9. Date Of First Authorisation/Renewal Of The Authorisation
20 October 1995/ 31 October 2005
10. Date Of Revision Of The Text
17th June 2011
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