what happens if you drink shu pu-erh and use amphetamine at the same time?

Generally a very pleasant combination. I have never been a fan of tea ceremonies and a connoisseur of the effects of tea (I stupidly don't notice them), so this mixture came in. It is at least convenient, the shopping mall is quickly brewed and can be repeated constantly. And the taste that doesn't get boring.

"Is it a heard thing - pouring collectible black" Muscat "into a can and diluting it with Zhiguli beer!" (c) Deniskin stories

You will not be able to fully experience the effect of either pu-erh or amphetamine. The mixture of active substances will mutually reinforce each other, at the same time increasing the load on the heart and other organs. In simple terms, it will bump harder, the waste will be heavier.

More precisely, it is impossible to say without data how much and what to use.