MattKingston [Public domain] from Wikimedia Commons
Sildenafil, the active component of the erectile dysfunction drug Viagra, can attenuate the effects of circadian phase advances in hamsters. The new research from Diego A. Golombek and colleagues of the National University of Quilmes (Buenos Aires, Argentina) suggests that sildenafil may have potential as a treatment for jet lag and other circadian adaptation problems in humans.
Lab Anim. (NY) 36, 9 (2007).
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