Ginger extract is one of the active ingredients of Praevens. Ginger’s rhizomes have been used since ancient times in traditional medicine to treat various conditions, including nausea. Gingerols are the bioactive substances contained in Ginger and act as antagonists to the type 3 serotonin receptor (5-HT3 receptor), which is an ion channel that plays an important role in regulating functions such as nausea. The results of several clinical studies have shown that treatment with Ginger can reduce pain and improve the functional status of patients who have suffered headache attacks. Ginger is effective in relieving menstrual pain in girls.