Common medication, its prescription medication is called Acetazolamide. In the US it's branded as diemox, probably different names in other countries. This medication will help your body handle high altitude a lot easier. And so you're not going to be experiencing a lot or severe side effects of high altitude. You can probably still experience some headaches every now and then. And that's why I think it's a good idea to make sure that you pack some painkillers, whether you take adivol, ibuprofen to help with any headaches, especially when you want to go to bed. And you have to battle the pains from your headaches. It's going to come in very handy.