Bupropion / naltrexone
"I started taking Contrave Jan 2016.  I lost about 10lbs within 3 months.  I've been on/off it several times over the last 1.5 years.  It seems to work in the beginning (1st month) but then your body becomes adjusted to it.  10lbs is not worth the side effects and heart risks.  I've heard this crazy stories of folks losing upwards of 35lbs in 3 months.  Definitely didn't work that well for me.  Save your money and try eating less and exercising more."