A trademark is an identifier used to identify the source of a specific enterprise or product. In this case, "gaston" is a trademark owned by Guangzhou Garch Pharmaceutical Co., Ltd. The function of the trademark is to help consumers identify and identify products of a specific brand, so as to establish brand trust and loyalty.

Guangzhou Geerqi Pharmaceutical Co., Ltd. may choose to name its brand "gaston" to distinguish its products in the market and establish its unique image and reputation in the hearts of consumers. This brand naming strategy may be based on the consideration of marketing and brand positioning, so as to stand out in the highly competitive drug market.