Simplify the following text for a Grade 8 native English-speaking person.
Original: In traditional Chinese medicines , the herb mÃ huÃ ng ( é '' é '' , Ephedra sinica ) contains ephedrine and pseudoephedrine as its principal active constituents .
Simplified: The herb mÃ huÃ ng ( é '' é '' , Ephedra sinica ) is used in traditional Chinese medicine . It has ephedrine and pseudoephedrine in it .