Words That Rhyme With "Biogen's" :

1 syllable:

bens, benz, Chen's, cleanse, dens, Enns, gens, Glenn's, glens, hens, jens, ken's, lens, mens, Penns, pens, Sens, Tens, when's, wrens, yen's, Zens

2 syllables:

doyennes, doyens

4 syllables:

Valenciennes