7 Nov 2011
Are you wanting to know because of a drug test?
If so amphetamines such as Ritalin can be detected in the urine up to 48 hours after use.
Ritalin has a short half life of around 3.5 hours ( the time it takes for the plasma level to fall by half) meaning it is eliminated quickly. Factors that also affect the rate at which it is eliminated include age, health, weight, metabolism etc.
- Ritalin Information for Consumers
- Ritalin Information for Healthcare Professionals (includes dosage details)
- Side Effects of Ritalin (detailed)
Search for questions
Still looking for answers? Try searching for what you seek or ask your own question.
If I take a dose of Lopressor ie 50 mg. How long does it stay active in my body.
2 answers • 6 Sep 2009
1 answer • 6 Jan 2011
0 answers • 30 Jan 2014
just wanted to know how long one 20 mg. lasic will stay in your system?
1 answer • 3 Oct 2014