Vyvanse - Get up-to-date information on Vyvanse side effects, uses, dosage, overdose, upper belly pain dizziness irritability nausea weight loss. dose of 70 mgday Doses greater than 70 mgday have not been studied. My 14 year old son is also in 70mg of Vyvanse for the past three years, with loss of appetite and some insomnia (if I dont get much physical activity). but then brought down to 20 mg cause he was not gaining any weight.
70 Mg Vyvanse Weight Loss:
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