U.S. doctors online nowAsk doctors free
IN
A 19-year-old male asked:

i took 70mgs of vyvanse (lisdexamfetamine) at 1am. if i took another 140mgs around 6 or 7pm same day cause me to od? i weight 260lbs. and have much experience with drugs

1 doctor answer5 doctors weighed in
Dr. Johanna Fricke
Developmental and Behavioral Pediatrics 50 years experience
Thrice the maxi-: mum recommended adult dose/24 hrs. is an overdose & the dosing schedule is bizarre, unless you work nights. AMPH are not prescribed on a mg/kg/day basis even in kids, though there are limits for maximum safe doses. Medical complications of obesity ^ risk of heart attack or stroke from AMPH OD. Please discuss getting healthy with your PCP, cardiologist, psychiatrist & psychologist.

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Personalized answers
Free
Talk to a doctor
24/7 visits
$15 per month

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Personalized answers
Free
Talk to a doctor
24/7 visits
$15 per month
Last updated Nov 27, 2017
Connect with a U.S. board-certified doctor by text or video anytime, anywhere.
24/7 visits
$15 per month

Disclaimer:

Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.