Can i take 50 mg of vyvance with my anti viral medicine for my cold sores and excedrin in the same day? is it dangerous to mix these drugs?

Vyvanse (lisdexamfetamine): Unless otherwise advised by your Doc., it should be safe.

Pharmacy question: The real answer is your pharmacy can cross check it's data base for drug/drug interactions. Vyvanse is a well tolerated drug and is most probably safe with your other medications but you need to get your pharmacy to do their homework. Their data base is best.