Immediate release Ritalin lasts for about 3-4 hours, although extended release versions of Ritalin last all day long (8 ...

How long Ritalin stays in your system depends on what formula of Ritalin you’re taking. Learn more about drug detectio ...

YES and NO. Ritalin cannot be detected in a standard 5 panel drug screen. But Ritalin shows up on drug tests for ampheta ...