Hi there ~
There are two ways to lose weight:
1. Eat right - and healthy. Which might mean that you need to consult a nutritionist.
2. Exercise regularly - 4 times a week for 30-40 min per session and it should include both cardio and weights.
There are no medications that are medically approved for weight loss
that have no side effects. I hope you get yourself on the track to recovery and a healthy weight as soon as you can. I hope this helped.
Take care and have a lovely day!