Evidence map›Paper›PMID 19916581›Full record

ArticleDrug safety2009

Safety and quality assessment of 175 illegal sexual enhancement products seized in red-light districts in Singapore.

Min-Yong Low, Yun Zeng, Lin Li, Xiao-Wei Ge, Ruth Lee, Bosco-Chen Bloodworth, Hwee-Ling Koh

Abstract read
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Article in Drug safety, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Unsafe herbal sex enhancement supplements in Nigerian markets: a human risk assessment.Environmental science and pollution research international · 2019
    Article
  5. Review
  6. Pharmacovigilance on sexual enhancing herbal supplements.Saudi pharmaceutical journal : SPJ : the official publication of the Saudi Pharmaceutical Society · 2016
    Article
  7. Article
  8. Article
  9. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Min-Yong LowApplied Sciences Group, Pharmaceutical Division, Health Sciences Authority, Singapore.
Yun Zeng
Lin Li
Xiao-Wei Ge
Ruth Lee
Bosco-Chen Bloodworth
Hwee-Ling Koh

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIn recent years, there has been increasing interest in the use of herbs and supplements as an alternative to drugs used for the treatment of erectile dysfunction, in order to enhance sexual performance. Over the years, adverse events associated with the consumption of natural health products for sexual enhancement and the treatment of erectile dysfunction have been reported.

objectiveThe objective of this work was to assess the safety and quality of 175 sexual enhancement health products seized from makeshift stalls in red-light districts of Singapore.

methodSeven raids were conducted by the Health Sciences Authority, Singapore, in two red-light districts in February and March 2008. 175 sexual enhancement health products seized from makeshift stalls were extracted with methanol and screened for Western drug adulterants using high performance liquid chromatography and gas chromatography-mass spectrometry. The labels and claims of the products were also evaluated.

resultsOf the 175 products evaluated, 134 (77%) were found to be adulterated with Western drugs or their analogues. Most of these 134 samples (123 [92%]) were found to be adulterated with sildenafil. The extent of adulteration of these illegal health products with Western drugs, including synthetic phosphodiesterase type 5 enzyme (PDE-5) inhibitors, and the risks of consuming such illegal sexual enhancement products are discussed in this study. Because of the scope of the raids, sildenafil was the most common adulterant found. In addition, some products were found to contain high contents of sildenafil (>100 mg) and high contents of the antidiabetic drug, glibenclamide (glyburide). The resultant severe hypoglycaemia has led to ten fatalities.

conclusionThe presence of Western drug adulterants and their analogues in illegal sexual enhancement products seized from red-light districts in Singapore, and their often misleading labels and claims, put the health of consumers at risk. To safeguard public health, greater public awareness of the danger of consuming such illegal products and the lack of quality control of these illegal sexual enhancement health products is important.

Indexed as

Drug ContaminationDrug-Related Side Effects and Adverse ReactionsErectile DysfunctionGlyburideHumansLegislation, DrugMalePiperazinesPurinesRisk AssessmentSildenafil CitrateSingaporeSulfonesGlyburidePiperazinesPurinesSildenafil CitrateSulfones

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.