Correction: The combination of Cassia obtusifolia L. and Foeniculum vulgare M. exhibits a laxative effect on loperamide-induced constipation of rats.

[This corrects the article DOI: 10.1371/journal.pone.0195624.].

In the Materials and Methods section, there is an error in the third sentence under the heading: “Preparation of CO and FV.” The correct sentence is: The dried CO powders were then twice extracted in 70% ethanol (powder sample/70% ethanol, 1:8) at 70 °C for 3 h. For the FV extraction, the dried FV samples were extracted three times with distilled water (powder sample/distilled water, 1:10) at 95 °C for 1.5 h.