There is no medicine that will help you grow any taller. You grow naturally and when you hit the age of 18, your body stops growing. But if your parents are both tall, there is a high possibility on becoming tall, too. If both are short, low possibility may occur.
There is no medicine that makes you taller. There are plastic surgeys in East Asia that can make you taller, but very risky. The only thing that can help is if your bone age is significant lower, your doctor can out you on growth hormones. It help you grow, but it is gradual and only can be done in certain circumstances.