There is not a single 'medicine' absolutely proved safe that is approved for weight loss
. Many have been introduced and withdrawn over the years. Astrlean is not approved for humans in most countries. I have no information of its effects on menstrual cycle - even if there is no interference, it is wise to stop it. Mid cycle spotting can occur without it too!
You only require strong motivation - with diet and exercise.
is like Bank account - you put in less (diet) and take out more (exercise) - the account will become lean! whatever may be the reason to put on, the principle ensures reduction.