Methylphenidate
"I  am  male,  50 years old and recently diagnosed with ADHD.   Started taking Concerta almost 4 weeks ago, and  much like everyone else, started  at 18mg dosage and now  at 54mg.   I'm not really sure how Concerta has affected me in  my daily life yet,  accept  perhaps helping me getting into deep sleep and dream again.  there are number of symptoms that I like to share with you:

-     I wasn't much of a forgetful person to start with,  but now I  tend to forget things

-      definitely  low libido and ejaculation issue

-      lack of appetite

-       lost interest talking to people  specially woman/ mind you, I'm single

-        no problems sleeping, though I  also take   10mg  Cipralex"