I think my adderall xr 20 mg that I take 2x daily stopped working after 2 months. I can't concentrate at ALL in school and I can't really study either.

Another thing I noticed is that after I take my adderall my heart rate INCREASES SOO MUCH! Its 120+ beats per min. I really don't notice it until I lay down to go to sleep or to take a nap. Is it weird to develop a side effect 2 months after taking the drug? Does this mean I don't have ADD Or something since I'm having caffeine like effects from it? Its not like I'm all hyped up and running around like a nut when I'm on adderall. Its like I'm relaxed, and think before I speak.

I also think it made me caffeiene senstiive. Before I could drink a bottle of mountain dew and go right to sleep. Now its like, if I even LOOK AT caffiene after 3 in the afternoon... I will be up until 1 am tossing and turning!

Does this mean my med stopped working? Is it possible for this to happen? Adderall used to be so great for me and it made me feel amazing, my add was controlled, I could study in class, and was able to focus and concentrate enough to study. I never had the side effects of not eating ... my appettite was just fine.

I was on ritalin for 8 yrs then I got off for 2 years and when I got back on it worked great but it gave me the inreased heart rate and insomnia affects. Then my doc switched me to concerta which did the same thing. Then I was on strattera for 2 years which I don't think helped at all or did anything to me. I was just put on adderall xr 20 mg two months ago and I thought I had found the drug that works for me. Im really dissapointed now!!

Did this happen to anyone else? I made an appointment to see my doc next week to figure out whats going on and if I need to change meds.

This is a two parter! I hope I can help ya cuz its tough when meds stop doing their thing.

First off, Adderall XR never properly worked for me either. It seemed to potently work one day, and hardly work the next. Some days it would work all day, some days for a few hours. I haven't read a ton about other people having similar effects, but if its happened to me, I'm convinced it could certainly happen to another person. It may be possible that you'd benefit from immediate release (IR) dosing. Ask your doc!

Second of all, there's a really tough situation with stimulant meds, and thats the feeling you get when they kick in, called a "rush". This really lets you know that they are going and working. This "rush" is often times what leads to abuse and misuse. It also wears off a lot faster than the actual effects of the meds. Try this (if you can) - Pick a day that you have absolutely nothing pressing to do. Some day you can sit around and get 0 done. Don't take any adderall. Get yourself a pen and paper. Write down how you feel. Write down what you do. See how different you feel. It'll give you something to compare and contrast to.

About the heart rate - yeah, if I've taken too much adderall and I stop moving, I can feel an elevated heart rate... its possible you've been on too much? I don't know, I don't know your specifics and I'm not a doc :(. Just some suggestions that have helped me in the past.

As far as caffiene, the most I get while on adderall (ritalin was different for me) is maybe a 20oz bottle of diet Coke a day. Coffee is just too much, but I guess thats because I've been off the bean for so long too.

Good luck with the doc!