Can the price and efficacy of Viola yedoensis and Forsythia suspensa be replaced?

The effects of forsythia suspensa are: clearing away heat and toxic materials, reducing swelling and dissipating stagnation, and dispersing wind and heat.

The effects of Viola yedoensis are: clearing away heat and toxic materials, cooling blood and reducing swelling.

Forsythia suspensa is twice as expensive as Viola yedoensis. Although drug prices vary from place to place, they are generally the same.

In the prescription composed of many kinds of traditional Chinese medicines, it is a so-called "expedient measure" to replace forsythia with viola yedoensis in most cases. But this should be decided by Chinese medicine practitioners and cannot be replaced by pharmacies without authorization.

If the patient has a cold due to wind and heat, the effect of forsythia will be better.