My sister asked me to research these last night!

Reductil is related to amphetamine so it can be dangerous if you have high BP or are at elevated risk of aneurism or stroke. It doesn't have the same "upper" qualities of amphetamine but it can interact with anti-depressants.

They work in conjuction with a low-cal diet to increase satisfaction and reduce appetite, which aids weighloss. They are for those with a BMI of 30+ who have morbidity (symptoms, like diabetes) from their excess weight.

I would not take such serious medication without the supervision of a doctor, to be honest.

You might find your weightloss begins again if you add a workout to your schedule and/or swap something about, so like swap a weights class for a cardio class or run on a treadmill instead of swimming.

Bx