Absorption: Well absorbed after oral administration.
Distribution: Widely distributed in body tissues, with high concentrations in the brain and CSF. Crosses the placenta and enters breast milk.
Metabolism/Excretion: Some metabolism by the liver. Urinary excretion is pH-dependent. Alkaline urine promotes reabsorption and prolongs action.
Half-life: 1015 hr.
Contraindicated in:
Use Cautiously in:
CV: SUDDEN DEATH, hypertension, palpitations, tachycardia, cardiomyopathy (↑ with prolonged use, high doses), hypotension, peripheral vasculopathy.
Derm: urticaria.
Endo: growth inhibition (with long term use in children).
GI: anorexia, constipation, cramps, diarrhea, dry mouth, metallic taste, nausea, vomiting.
GU: erectile dysfunction, ↑ libido.
Neuro: hyperactivity, insomnia, restlessness, tremor, dizziness, headache, irritability.
Misc: HYPERSENSITIVITY REACTIONS (INCLUDING ANAPHYLAXIS AND ANGIOEDEMA), fever, physical dependence, psychological dependence, tolerance.
Drug-Drug:
Drug-Natural Products:
Drug-Food:
ADHD
Narcolepsy
Obesity
(Generic available)
NDC Code*