I found this on webmd while trying to look up male lactation, fyi, all I can find is guys asking how to make it happen, WTF?????
Any way here I thought you guys may get a kick out of this.
Side Effects
Treatment with hCG may cause side affects such as:
Growth of the penis.
Enlargement of the testicles.
Darkening or increased pigmentation of the scrotum.
Growth of pubic hair.
These effects (called virilization) are normal responses to increased levels of testosterone in males, but they usually do not occur until puberty. These side effects usually recede or fade away after treatment ends. In most cases, treatment with hCG does not last long enough for these side effects to appear.
Treatment with GnRH has few side effects and does not include the virilizing effects seen with hCG.
See Drug Reference for a full list of side effects. (Drug Reference is not available in all systems.)