Gynecomastia symptoms and conditions

Have any men experienced gynecomastia (breast enlargement) associated with taking Zocor?

boys boobs a side effect from singulair? my 12 yr old is getting weight and I see that his breasts are large for his body, he is getting weight but not that much, his pediatrician noticed that, I read that the condition is called gynecomastia and is many times cause for some drugs or medications, my son is "only on singulair" for about 4 yrs, it works wonderful for his asthma but now that I read some of the side effects such leg cramps, stomach irritation, moodiness, stc, c'mon he is a child, he is healthy (to a degree) because all this symptoms can not be just a coinsidence, is like before singulair no leg cramps, moodiness, tireness, he was sooo slim and now all these side effects?.. does somebody else has this side effect with the boys breasts? please reply