There are a lot of different drugs used for PCT. One of the most common ones is Rebirth, which is a 180-supply supplement that provides you with a really powerful PCT product to make sure your body stays healthy and capable of producing its own hormones. There are many different versions and variations, and different products use different drugs: there’s not one product that everyone uses.
However, there are many different popular brands of PCT. Rebirth is one of them. If you find another brand and you’re interested in using it, it’s fine if you do that, but just make sure to research it and check in on it first: to make sure that it’s something you’d want to be using — to make sure that it’ll fit your needs and actually help you.