Can you take Vyvanse and flexeril together?

I'm not sure my mom takes darvocet and flexeril together and it's fine but I don't know how big of a difference there is in Vicos and darvocet

number 1 there is a huge diff in vicoden and darvys dav is a synthetic opite related to the methadone family hydrocodone aka vicoden is a true opite number 2 to answer your question yes you can mix thim my doctor has me taking 2 hydrocodone 10s and 2 flex every 4 to 6 hours so you should be fine