Vivarin 200 mg Tablets, 40-Count

Promotes mental alertness
Helps to keep awake
Brain stimulant that lets you think and work
Each dosage last approximately 4 hours
Convenient to carry around and use as and when needed Vivarin is an over-the-counter caffeine tablet that helps restore your mental alertness and focus. the only active ingredient in vivarin is caffeine. it's just like having coffee or soda. the functional caffeine in vivarin can help you accomplish all the things you need to do and all the things you want to do. More »