Amma R M, Francis C M
Indian J Physiol Pharmacol. 1976 Jul-Sep;20(3):153-5.
2,4-dichlorophenoxy acetic acid (2,4-D) produces myotonia in healthy animals. The action of this drug was studied on smooth muscles in vitro using isolated strips of rabbit's duodenum. The drug was found to have a stimulant action on the smooth muscle. The action seems to be a direct one.
2,4-二氯苯氧乙酸（2,4-D）可使健康动物产生肌强直。本研究使用兔十二指肠离体条带，在体外对该药物作用于平滑肌的情况进行了研究。发现该药物对平滑肌有刺激作用。这种作用似乎是直接作用。
