Possible sides:
Nut shrinkage, Acne, Loss of libido, Loss of hair, Joint pain, Lower back discomfort while squating(androgen pumps), Lethargy(bigtime), Aggression or irritability, Nut ache (first few days or week), Pain while urinating, Water retention, Itchy nipps or swelling there, skin rash where applying.
Look on bb.com for a link, its there or used to be.