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Is It Dangerous To Take Marijuana After Taking Vyvanse?

I was recently prescribed vyvanse (50mg) for ADHD but I also have a prescription for marijuana for insomnia. While on short acting dexadrine I would use the marijuana to help me get to sleep when the drugs kept me awake. Is there a danger of using marijuana after the vyvanse (over 12 hours later)?

posted on Fri, 14 Mar 2014

Medically reviewed by Ask A Doctor - 24x7 Medical Review Team

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