Methylphenidate or dexmethylphenidate may lower the levels and outcomes of some hypertension drugs for instance clonidine, guanfacine, guanethidine and guanadrel. Der er ifølge Margit Anne Petersen ikke nogen generelle videnskabelige undersøgelser af, hvor udbredt brugen af review medicine Stimulants hold off snooze by about forty minutes in a