Methylphenidate, {commonly known as Ritalin or Concerta|frequently recognized as Ritalin or Concerta, is a medicinal compound stimulating the central nervous system. While its primary utilization is in the treatment of Attention Deficit Hyperactivity Disorder (ADHD), it also has uses in treating narcolepsy and certain other neurological conditions.

Scooping up some product on the European market? Gotta be aware of the scene. You're sure to find lots ranging from {shabby to solid{, so checking the purity is key. Prices can fluctuate wildly depending on the quality and location - a gram of pure stuff might set you back anywhere from {£50-100|€50-100|100-200 EUR, while low-grade goo could be