Wednesday 18 July 2012

Benadryl Skin Allergy Relief Cream





1. Name Of The Medicinal Product



Benadryl Skin Allergy Relief Cream



Benadryl Allergy Skin Cream


2. Qualitative And Quantitative Composition



Benadryl Allergy Skin Cream contains:



1% w/v diphenhydramine hydrochloride Ph Eur



8% w/v zinc oxide Ph Eur



0.1% w/v racemic camphor Ph Eur.



3. Pharmaceutical Form



Cream.



4. Clinical Particulars



4.1 Therapeutic Indications



Benadryl Allergy Skin Cream is indicated for the relief of irritation associated with urticaria, herpes zoster and other minor skin affections and alleviate the discomforts of sunburn, prickly heat, insect bites and nettle stings. In infants it may be used for hives.



4.2 Posology And Method Of Administration



Adults:



Topical. Benadryl Allergy Skin Cream may be applied to the affected area, three or four times daily.



Children and Infants:



Topical. As for adults.



The Elderly:



Topical. As for adults.



4.3 Contraindications



Do not use on chicken pox or measles or exudative dermatoses, unless supervised by a doctor. Do not use on extensive areas of the skin except as directed by a doctor. Do not use any other drugs containing diphenhydramine while using this product.



4.4 Special Warnings And Precautions For Use



Benadryl Allergy Skin Cream should not be applied to raw, or broken surfaces or mucous membranes as this may result in percutaneous absorption giving rise to systemic effects. Avoid contact with the eyes. If a burning sensation or rash develops or if the condition persists, treatment should be discontinued. If necessary, remove by washing with soap and water.



4.5 Interaction With Other Medicinal Products And Other Forms Of Interaction



None known.



4.6 Pregnancy And Lactation



The safety of Benadryl Allergy Skin Cream in pregnancy and lactation has not been established. Like any medicine, Benadryl Allergy Skin Cream should only be used if the possible benefits outweigh the potential risks involved. Diphenhydramine is known to be absorbed through the skin. Diphenhydramine crosses the placental barrier and is secreted in breast milk.



4.7 Effects On Ability To Drive And Use Machines



None known.



4.8 Undesirable Effects



Rarely, sensitivity, eczematous reactions and photosensitivity have been reported after topical application of antihistamines. If this occurs, treatment should be discontinued.



4.9 Overdose



Symptoms and signs



Accidental ingestion or excessive absorption of Benadryl Allergy Skin Cream may lead to dose-related signs of diphenhydramine toxicity. These include drowsiness and sedation with anti-cholinergic symptoms prevailing. Camphor may produce nausea, vomiting and dizziness. At higher doses, delirium leading to coma, ataxia, increased muscle reflexes and cloniform convulsions may appear.



Treatment



The stomach should be emptied by lavage and aspiration. In cases of acute poisoning, activated charcoal may be useful. A sodium sulphate purgative may be given. Convulsions may be controlled with diazepam or thiopental sodium. In the case of camphor poisoning, lipid haemodialysis or resin haemoperfusion may be useful.



5. Pharmacological Properties



5.1 Pharmacodynamic Properties



Benadryl Allergy Skin Cream contains diphenhydramine hydrochloride, zinc oxide and camphor. Diphenhydramine is a powerful antihistamine and local anaesthetic (antipruritic). In concentrations of between 0.1 – 3.0 %, camphor depresses cutaneous receptors and is an effective analgesic, anaesthetic and antipruritic, which provides a feeling of coolness when applied topically.



5.2 Pharmacokinetic Properties



Benadryl Allergy Skin Cream is intended only for topical application to the skin. At the recommended dose little of the active ingredients will be absorbed. Percutaneous penetration of diphenhydramine and camphor has been demonstrated during inappropriate use of these compounds separately, but has not been quantified.



5.3 Preclinical Safety Data



There are no preclinical data of relevance to the prescriber which are additional to that already included in other sections of the SPC.



6. Pharmaceutical Particulars



6.1 List Of Excipients



White ceresin



Cetostearyl alcohol



Ferric oxide red (E172)



Ferric oxide yellow (E172)



Sorbitan stearate



Propyl hydroxybenzoate



Propylene glycol



Polysorbate 60



Perfume oil soleil 78087



Purified water



6.2 Incompatibilities



None known.



6.3 Shelf Life



3 years.



6.4 Special Precautions For Storage



Do not store above 25°C.



6.5 Nature And Contents Of Container



Benadryl Allergy Skin Cream is stored in a 42 g epoxy phenolic-based lacquered aluminium tube with a white, polyethylene or polypropylene cap.



6.6 Special Precautions For Disposal And Other Handling



None applicable.



Administrative Data


7. Marketing Authorisation Holder



McNeil Products Limited



Foundation Park



Roxborough Way



Maidenhead



Berkshire SL6 3UG



United Kingdom



8. Marketing Authorisation Number(S)



PL 15513/0078



9. Date Of First Authorisation/Renewal Of The Authorisation



5th January 2000



10. Date Of Revision Of The Text



2 December 2009




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