Is ritalin (methylphenidate) and addrall the same as crytal meth (methamphetamines)? Is one more potent than the other?

NOT the same. Crystal meth (methamphetamine)is an illicit stimulant manufactued and distributed illegally on the streets. Ritalin (methylphenidate) and Adderall (dextroamphetamine and racemic amphetamine) (dextroamphetamine) are medications approved by the FDA for the treatment of conditions such as ADHD and narcolepsy. Although these two medications have an abuse risk, if taken as prescribed, they are safe and effective. Crystal meth can kill you!