sildenafil citrate vs sildenafil

sildenafil citrate and sildenafil both are nouns.

Word	Noun	Adjective	Verb	Adverb
sildenafil citrate	Yes	No	No	No
sildenafil	Yes	No	No	No

As nouns, sildenafil citrate and sildenafil are synonyms defined as:

sildenafil citrate and sildenafil: virility drug (trade name Viagra) used to treat erectile dysfunction in men

Other synonyms of sildenafil citrate include Viagra.

sildenafil citrate (noun)	sildenafil (noun)
virility drug (trade name Viagra) used to treat erectile dysfunction in men	virility drug (trade name Viagra) used to treat erectile dysfunction in men