It is not know to be naturally produced but is rather an man-made chemical synthesised in labs.
Methylphenidate improved both social anxiety and ADHD symptoms in adults, study found.
Ozone is found naturally in stratosphere. It is found as ozone layer.
Caffeine is naturally found in coffee.
it is naturally found
The wombat is only found naturally in Australia.
Plastic is a synthetic material. It is not found naturally anywhere.
yes oxygen is an element and it is naturally found in the universe
Almost every element from hydrogen to uranium (going from smallest to biggest) is found naturally on Earth. Technitium is not found naturally on Earth, it is the exception. The trans-uranic elements are also not found naturally on Earth.
They are found at birth:)
Noop. Methylphenidate is in a class of chemicals with stimulant properties. Very similar actions to amphetamines.
Ritalin.
Methylphenidate can be detected in urine for 2-4 days, but it is not tested for nor does it cause a positive result on a drug screen. It will not cause a false positive for any other drug. Methylphenidate CAN be tested for, but it requires a special test which is looking only for use of methylphenidate.