I just wanted to let you know that I used one Ritalin pill in order to improve my energy levels, and it has caused me to worsen both sexually and mentally.
But I am a bad case, so that doesn’t mean it has to necessarily be the same for everyone. But I would not recommend using it at all.
Don’t know for sure the reason it happened, but I’ve been told that it it has antiandrogenic effects. Here’s a study: