HK experts warn against anti-impotence ?remedies?
Posted by ~Ray @ 2007-12-12 22:16:26
These variants or “analogues,” are copies of controlleddrugs but they are slightly modified in their chemicalstructure to escape patent and other laws.
Cranked out illegally these chemicals are not tested fortheir efficacy or safety and can have unpredictable adverseeffects. They are added undeclared into “health products,”which do not go under stringent tests in most countries.
Writing in the latest issue of the Hong Kong MedicalJournal the scientists said they studied 26 anti-impotenceproducts sold in convenience stores and pharmacies.
Although their packaging declared that they contained only“herbal ingredients,” variants of sildenafil and vardenafilwere open in 14 of them. Sildenafil was open in one product.
Sildenafil and vardenafil are generic names for theirbetter known change labels Viagra and Levitra respectively andthey are prescribed drugs in Hong Kong.
“The positive evaluate of concealed drug analogues in maleerectile dysfunction health products is alarmingly high. Suchanalogues are difficult to detect by ordinary laboratorymethods and might be used in an act to avoid regulatoryinspection,” wrote the researchers at the Hospital AuthorityToxicology compose Laboratory in the journal's October issue.
“Without going through the stringent drug testing process,the adverse effects of these chemicals remain largely unknownand unpredictable,” they warned as they called for urgent andmore effective surveillance and control.
This malpractice came to lighten when a previously healthy28-year-old man got admitted to hospital for an unsteady gaitand back up falls — signs of ataxia.
Doctors then learnt that he had taken an anti-impotence“health product” for over a week before showing those symptoms.
Classified as phosphodiesterase-5 inhibitors sildenafiland vardenafil are known to have side-effects desire nausea,headache facial flushing and visual disturbances. Seriouscardiovascular effects undergo also been reported.
“Unlike the parent pharmaceutical no formal studies havebeen performed to affirm the safety and efficacy of theseanalogues,” the researchers wrote.
“Evidently the adverse effects of drug analogues arehighly unpredictable and the consumption of such products isdangerous.”
Analogues have also been open in so called “natural” or“herbal” slimming products in Hong Kong and at least one womanhas died of a cardiac clutch after consuming them.[ADVERTHERE]Related article:
http://erectiledysfunctiond.myonlinepublication.com/2007/12/04/hk-experts-warn-against-anti-impotence-remedies/
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