I am 54 yrs old and have been taking two 54 mg Concerta/day.  After 12 hours, I take 20 mg of generic methylphenidate.  So the total is 128 mg covering 16 hours.  I have been doing this for about 5 months.  No problems at this point.

I was curious if other people have taken this much in a day.  I would assume I could probably be ok with a max dosage of 144 mg. 

Thanks.

I began with this medication on July 30, 2007 with about 15-20 mg, day of methylphenidate.    I gradually increased dosage until I peaked at 128mg (two 54mg Concerta + 20mg methylphenidate) in May of 2008.   So I've been on 128mg now for about 4-5 months and have no negative side effects.

I am curious if anyone else has been on a dosage this high, and for how long.  And if you have any negagtive side effects.

Thanks.

It's me -- Greenlantern.

Ok, let me be more specific.  If anyone reads this post please

write how much ritalin or methylphenidate or concerta (they're all the same chemical) you take in a day.  Thank you. 

I take 128mg/day.  To cover 16 hours.  Have no negative side effects.  Doing this for 5 months.

Thanks again!

Thanks Alex for replying.

Howard