Viagra wears off after two yearsBMJ 2001; 323 doi: https://doi.org/10.1136/bmj.323.7312.530/c (Published 08 September 2001) Cite this as: BMJ 2001;323:530
- Scott Gottlieb
- New York
The anti-impotence drug sildenafil (Viagra) may stop working for many patients after two years, the results of a study from the United States have suggested.
Dr Rizk …
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