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Significant Misuse of Sildenafil in London Nightclubs
Wui Ling Chan1, David Michael Wood2, Paul Ivor Dargan2
1a Emergency Department, Tan Tock Seng Hospital , Singapore.
Background:
There is anecdotal evidence of misuse of erectile dysfunction medication, particularly to counteract some of the unwanted effects of recreational drugs on erectile function. However, there is little data from the United Kingdom (UK).
Aim:
To evaluate the prevalence of sildenafil misuse in a UK population that has previously been shown to have high recreational drug use.
Design:
Questionnaire survey.
Methods:
Individuals attending nightclubs catering for the men who have sex with men (MSM) community in South London were asked about lifetime and last year use of recreational drugs and sildenafil.
Results:
313 individuals were surveyed over four nights in 2013: 282 (90.1%) were males and 248 (79.2%) were MSM. Last year use of recreational drugs was high: mephedrone (74.1%), cocaine (61.3%), MDMA/Ecstasy (59.2%), GHB/GBL (52.8%), cannabis (51.8%), and ketamine (50%). 136 (49.1%) MSM versus 6 (18.8%) non-MSM clubbers had misused sildenafil in the last year (p < .001). Amongst the MSM clubbers, 232 (93.5%) had heard of sildenafil, 161 (64.9%) reported misuse of sildenafil in their lifetime and 133 (53.6%) had misused sildenafil in the last year.
Conclusion:
This study demonstrates a high prevalence of sildenafil misuse in a population who are heavy users of recreational drugs; it is not likely that this young population have underlying erectile dysfunction as a reason for legitimate sildenafil use. There is the potential for interaction with other recreational drugs used including cocaine and volatile nitrites. Further work is required in to determine the extent and reason for the misuse.