… or, So Long Sibutramine Over two thirds of Americans are overweight.  A safe and effective medication that helps people lose weight would be a boon for the health of millions who are struggling to take off the pounds.  Unfortunately, this has been an extremely tough nut to crack for the pharmaceutical industry. The existing medications for weight loss have been only modestly effective, and last week the choices became fewer.  Meridia (the brand name of the medicine sibutramine) was voluntari...