 [ Symptoms ] my ex wife keeps messing with my sons dosage of his adhd medicine dextroamphetamine is that safe  my ex wife keeps messing with my sons dosage of his adhd medicine dextroamphetamine is that safe she on her own says i dont think that he needs his second dose if he is not in school so every few days she is changing up his dosage [ Disease ] maybe hand foot and mouth disease varies in severity depending on the person who contracts it