"today is the first day of week two of the starter dosage. i lost 4.6lbs last week.  i have noticed some dry mouth, which has caused me to be more conscious of water intake.  i  also have noticed some constipation and a little sleeplessness.  still no tingling in the hands or feet.  i did try a sip of a pepsi yesterday and a lot of people on here are right ... this medication completely changes how it tastes. i am not a soda drinker anyway, but just had to see if that was a side effect, and it is. it has a really strong, unbearable metallic taste.  my sugar cravings have surprisingly decreased dramatically as i am a sugar addict. i no longer have m&amp;ms on my mind 24/7.  my appetite has decreased, but does still exist."