Dexedrine (Dextroamphetamine sulfate) Central nervous system agent CNS stmulant Attention-deficit disorder with hyperactivity. Individualize: use lowest effective dosage. 10 mg/day; raise in 10 mg/day increments at weekly intervals. Usual dose 5 to 60 mg/day in divided doses. (Children 6 to 12 years) Initial dose 5 mg/day; raise in 5mg/day increments at weekly intervals. Category C Palpitations, elevation of blood pressure, overstimulation, restlessness, dizziness, Insomnia, tremor, headache, dry mouth, unpleasant taste, diarrhea. Pregnancy Risk Categories defined: A: Studies in pregnant women failed to show a risk to the fetus in the first trimester - with no evidence of risk in the later trimesters. B: Animals studies indicate no adverse effect to the fetus, but there are no adequate, clinical studies in pregnant women. C: Animal studies have shown an adverse effect on the fetus, but there are no adequate, clinical studies in humans. Despite potential risks, the drug may be useful in pregnant women. D: There is evidence of risk to the human fetus, but the potential benefits of use in pregnant women may be acceptable, despite potential risks. X: Studies in animals or humans show fetal abnormalities, or adverse reaction reports indicate evidence of fetal risk. Warning: the risks involved clearly outweigh any potential benefit from using the drug in pregnant women, regardless of trimester. NR: Not rated (i.e., no information available at this time as to the potential risks or benefits).