Round white tablet imprinted V 2355 is 325 mg
acetaminophen, 50 mg butalbital and 40 mg caffeine. It's generic
Fioricet.
More info:
http://fioricet.drugs.com/
I'm not a pharmacist or a medical doctor. This message is not medical advice nor is it an offer to provide medical advice. All drug identifications should be validated by a licensed MD or pharmacist.