Tuesday, October 25, 2016

Pyralvex (Norgine Limited)





1. Name Of The Medicinal Product



PYRALVEX


2. Qualitative And Quantitative Composition



PYRALVEX contains the following active ingredients in each 1ml of solution:








Rhubarb extract




50 mg (equivalent to 5 mg anthraquinone glycosides)




Salicylic Acid




10mg



3. Pharmaceutical Form



Oromucosal solution.



4. Clinical Particulars



4.1 Therapeutic Indications



For the symptomatic relief of pain associated with recurrent mouth ulcers and denture irritation.



4.2 Posology And Method Of Administration



Adults (including the elderly) and children 16 years and over: To be applied to the inflamed oral mucosa (after removing any dentures) three or four times daily using the brush provided.



Seek medical advice if no improvement in condition – maximum length of use is 7 days.



Children: Contraindicated below the age of 16 years.



4.3 Contraindications



Hypersensitivity to any of the constituents.



Not to be used in children and adolescents under the age of 16. This is because there is a possible association between salicylates and Reye's Syndrome when given to children. Reye's Syndrome is a very rare disease which affects the brain and liver and can be fatal.



4.4 Special Warnings And Precautions For Use



Salicylate toxicity can result if the stated frequency of application is exceeded.



Each bottle of PYRALVEX should be used by only one person.



4.5 Interaction With Other Medicinal Products And Other Forms Of Interaction



None known.



4.6 Pregnancy And Lactation



Animal studies are insufficient with respect to effects on pregnancy and-or embryonal/foetal development. The potential risk for humans is unknown. Caution should be exercised when prescribing to pregnant women.



Anthranoid glycosides derived from rhubarb may be excreted in breast milk. However, at therapeutic doses of Pyralvex, it is not known whether these, or salicylic acid are excreted in breast milk. A decision on whether to continue breast-feeding or to continue therapy with Pyralvex should be made taking into account the benefit of breast-feeding to the child and benefit of Pyralvex therapy to the woman.



4.7 Effects On Ability To Drive And Use Machines



None.



4.8 Undesirable Effects



Gastrointestinal Disorders



A transient local burning sensation at the site of application occurs very commonly (>1/10).



Temporary discolouration of teeth or oral mucosa have been described commonly (>1/100, <1/10) following administration of PYRALVEX.



Immune disorders



Allergic reactions, including rash and urticaria.



4.9 Overdose



Overdose associated with local application is unlikely, although the extent of systemic absorption of salicylic acid and anthranoid derivatives is not known. Systemic overdose following ingestion might lead to abdominal cramping, diarrhoea and possibly salicylism (presenting as hyperventilation, tinnitus, deafness, vasodilation, sweating).



Salicylate toxicity can result if the stated frequency of application is exceeded. Do not exceed the stated frequency of application.



5. Pharmacological Properties



5.1 Pharmacodynamic Properties



Pharmacological studies have shown that the active ingredients of PYRALVEX display anti-inflammatory, analgesic and anti-microbial properties, which are the basis of its clinical efficacy.



5.2 Pharmacokinetic Properties



Systemic availability of PYRALVEX is unlikely to be significant, owing to the low levels of ingredients administered.



5.3 Preclinical Safety Data



There is some evidence of genotoxic risk with rhubarb extract and related anthranoids, the relevance of these findings to PYRALVEX is unknown.



6. Pharmaceutical Particulars



6.1 List Of Excipients



Ethanol



Water



6.2 Incompatibilities



None known.



6.3 Shelf Life



The shelf life is 3 years.



6.4 Special Precautions For Storage



Store below 25°C.



6.5 Nature And Contents Of Container



An amber glass bottle with brush applicator containing 10ml of solution.



6.6 Special Precautions For Disposal And Other Handling



No special requirements.



7. Marketing Authorisation Holder



Norgine Limited,



Norgine House,



Widewater Place,



Moorhall Road,



Harefield,



UXBRIDGE,



Middlesex, UB9 6NS



United Kingdom



8. Marketing Authorisation Number(S)



PL 00322/5013R



9. Date Of First Authorisation/Renewal Of The Authorisation



May 1972



10. Date Of Revision Of The Text



December 2010





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