<s>[INST] Hi there, I would like to know how long I have to wait after I took Duromine to loose wait. I have taken it for the last 2 months together with plenty exercise and lost 20 kg (from 95 kg down to 74 kg at 1.67 m height). When can we start to make a baby? [/INST] Hi,Thanks for the query. Duramine contains phenteramine.Half life of phenteramine is around 25 hours.So, after stopping the drug by this time the drug might have cleared from circulation. But as there is around 20 kgs weight loss in your case, that may have some impact on menstrual cycle. And it may take some time for regularization of the hormonal levels. So, better to wait for one to two months. Possibly by that time, your cycles will get regularized. Then you can track the ovulation in next cycles and plan intercourse around that period. This will increase the possibility of pregnancy. For more details :    care. </s>