Vivarin is quick, safe, and effective. But how much caffeine is safe? Good question. On average, most people who consume caffeine get about 250 mg of caffeine each day.

Caffeine is an effective tool to help you stay awake and mentally alert when you’re feeling fatigued. When Vivarin is used as directed, it’s a safe way to stay alert.

Since caffeine is a stimulant, it is very common to get addicted. When people don’t get their usual dose of caffeine, they can experience withdrawal symptoms.