Sentence:  ...vitamin A (2500 international units [IU]); vitamin C (250 mg); pantothenic acid (200 mg); zinc (10 mg); <WSD>pycnogenols</WSD> (5 mg); stinging nettle ( 1 00 mg); cayenne (20 mg). 
Meaning of the word marked with <WSD> tags:  Any of a group of flavonoids extracted from the bark of pine trees, especially proanthocyanidins.