Yu Jiayan called "against the current boat" method of the formula is the defeat of poison powder. Yu Jiayan's "Defeating Toxin Dispersion" was used to treat dysentery caused by external evils trapped inside the body, so that the evils trapped inside the body could be healed from the surface, which was known as "pulling back the boat against the current" method.

Ginseng septic toxin powder, against the current to pull the boat (referred to as "against the current to pull the boat"), is the Qing Dynasty physician Yu Jiayan based on ginseng septic toxin powder treatment of dysentery at the beginning of the experience of both the surface evidence, to the analogical way of a treatment method.

As the name suggests, dysentery at the beginning with surface evidence, is the external evil from the surface and trapped in, so the evil should be trapped, but also from the surface and solution, as if against the current to pull the boat upstream. Yu's first advocated this method to descend, open a large door to treat dysentery, quite appreciated by later generations of doctors.

This formula treats dysentery caused by external evils trapped in the body, meaning that it evacuates the surface evils, the surface gas is dredged up, and the stagnation in the body is removed, so that the dysentery stops. This treatment is known as the "against the current to pull the boat" method.