its an anti-obesity drug. but is prescribed to those with BMI higher than normal in short, obese. once a day x 30 days x 2 or 3 months, depends. but u wont definitely lose in just 10days.

also, if what you stated above is true, then keep it up..its healthy.. yes you wont notice it in 10days bec ur in a water loss stage which is the first 1-2 weeks of your workout... 3-4 weeks you will notice urself trimmed down a bit... continue working out then on your 2nd-3rd month, you'll start seeing yourself able to wear your old pants and skirts.

Goodluck! :)