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How Much Caffeine Is in Vivarin?

Sourced caffeine figures for Vivarin: every serving size, mg per 100 ml, the coffee comparison, and when to stop before bed.

TL;DR

Vivarin contains 200 mg of caffeine per 1 tablet. That is about 2.1 times the caffeine of a typical 8 oz cup of brewed coffee (about 95 mg).

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Vivarin Caffeine Content by Serving

ServingVolumeCaffeinePer 100 mlLevel
1 tablet-200 mg-High

Source: caffeine figures from Vivarin official site, accessed 2026-06-11. Values can vary by batch, location, and preparation; check the label or the source for the latest figures.

How Vivarin Compares to Coffee

At 200 mg per 1 tablet, Vivarin delivers about 2.1 times the caffeine of a typical 8 oz cup of brewed coffee (about 95 mg). For a wider comparison across drinks, try the caffeine comparison tool or browse the full caffeine database.

When to Stop Taking Vivarin Before Bed

With caffeine's median 5-hour half-life, one tablet of Vivarin (200 mg) needs about 10 h to fall under 50 mg, the level where most people can fall asleep normally. That puts the last call at 12:00 PM (12:00) for a 10 PM bedtime and 1:00 PM (13:00) for an 11 PM bedtime. Individual half-lives range from roughly 2 to 12 hours, so treat these as a starting point.

The Vivarin sleep cutoff page has last-call times for four bedtimes, and the caffeine half-life calculator personalizes the curve to your metabolism.

Related Guides

Vivarin Sleep CutoffLast-call times for four bedtimes Half-Life CalculatorModel your personal caffeine curve Caffeine DatabaseAll drinks, sourced and compared Comparison ToolCompare any two drinks side by side

Frequently Asked Questions

One tablet of Vivarin contains 200 mg of caffeine, per Vivarin official site (accessed 2026-06-11). That is about 2.1 times the caffeine of a typical 8 oz cup of brewed coffee (about 95 mg).
Yes, by most standards. The FDA's guideline for healthy adults is 400 mg per day, so one tablet (200 mg) is already 50% of the daily limit.
Caffeine's median half-life is about 5 hours, so the 200 mg in one tablet drops to roughly 100 mg after 5 hours and 50 mg after 10 hours. Individual half-lives range from about 2 to 12 hours depending on CYP1A2 genetics, medications, smoking, and pregnancy. Model your own curve with the caffeine half-life calculator.
For an 11 PM bedtime, have your last tablet of Vivarin by 1:00 PM (13:00) to be under 50 mg of residual caffeine at lights out, assuming the median 5-hour half-life. See the full bedtime table on the Vivarin sleep cutoff page.

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Medical Disclaimer: Caffeine values are approximate figures from the cited public sources. Actual content may vary by batch, location, and preparation, and caffeine metabolism varies widely between individuals. This page is for informational purposes only and is not medical advice. The FDA guideline for healthy adults is up to 400 mg of caffeine per day; the recommended limit during pregnancy is 200 mg per day. Consult a healthcare professional for personalized guidance.