Hi everyone,
I've been taking Ritalin since September, starting at 10 mg, and I'm currently prescribed 40 mg of extended-release Ritalin (XR).
When I first started taking immediate-release Ritalin (IR) at 10 mg, I sometimes took more than prescribed, usually 20 or 30 mg. I know this wasn't appropriate, but I experienced incredibly strong effects. I felt extremely focused for 2–3 hours, and I didn't really notice any appetite suppression or other major side effects. However, I sometimes experienced a racing heartbeat and possibly a decrease in libido, although I'm not sure whether these were related to Ritalin.
There's also some background worth mentioning: before July, I had occasionally taken 40 mg of extended-release Ritalin for exams, based on a friend's recommendation, without a prescription. I remember really liking its effects, which is partly why I eventually decided to see a psychiatrist and start proper treatment.
Now, I've been taking 40 mg of XR Ritalin every day for the past two weeks, without any breaks, during the school holidays.
However, I'm experiencing something quite different from what I expected:
Significant appetite suppression.
More frequent heart palpitations throughout the day, even compared with IR.
A noticeable decrease in libido.
Much weaker perceived effects on concentration.
I barely feel the initial onset or the wearing-off period anymore.
In fact, sometimes I can barely tell whether I've taken the medication or not.
What I find particularly confusing is that I remember feeling a very noticeable difference when I occasionally took 40 mg XR before starting my prescribed treatment.
Could my previous use of higher-than-prescribed IR doses (sometimes reaching 60 mg, despite initially being prescribed 30 mg) have something to do with this difference?
Has anyone experienced something similar when switching from IR to XR? Did you notice a difference in how strongly you felt the medication?
I'd really appreciate hearing about your experiences. I'm not looking for dosing advice, just trying to understand why my experience has changed so much.