A Review Of adderall xr to vyvanse equivalence
With normal urine pHs, close to half of an administered dose of amphetamine is recoverable in urine as derivatives of alpha-hydroxy-amphetamine and about A further 30-40% from the dose is recoverable in urine as amphetamine by itself. Given that amphetamine includes a pKa of nine.9, urinary recovery of amphetamine is very depending on pH and urine