“…Phenolic compounds constitute the predominant group of substances that are responsible for the inhibition of snake venom. Within this group, the subclasses of flavonoids ( 117 – 120 ), hydroxycinnamic acids and derivatives ( 103 , 121 – 125 ); hydroxybenzoic acids ( 81 , 126 – 130 ), tannins ( 109 – 133 ), coumarins ( 103 , 134 ), among others. The second majority group of substances with antivenom activity are terpenes ( 97 , 105 , 106 , 112 , 135 – 139 ), which are followed by alkaloids ( 140 – 146 ), modified glycosides ( 110 , 111 , 147 ), saponins ( 100 , 101 , 103 , 148 ) and polyketides ( 86 , 149 , 150 ).…”