Its better no to use as they have no proven scientifically. They may have much side effects. Thanks

thank you so much for your kind information ... is it good to use medicine for increase height which avilable in market??

Thank you for your question. Height is determined by multiple factors, gentic factor being important of it. There are not such particular medical treatement for increase in height. As you are only 18 and there is couple of years more for your height to increase. You can try taking foods with high calcium diet and do strengthening exercises. Thank you