LONDON (Dow Jones)--Plethora Solutions Holdings PLC (PLE.LN), a U.K.-based specialty pharmaceutical company, said Monday it has launched a new product, hi-Argenol, for the maintenance and improvement of male sexual health. -Shares closed Friday at 11.75 pence valuing the company at GBP5.21 million. -By Ian Walker, Dow Jones Newswires; 44-20-7842-9296; [email protected] (END) Dow Jones Newswires July 19, 2010 02:25 ET (06:25 GMT)